Cesium
Cesium Radioisotopes
Cesium Isotopes
Water Pollutants, Radioactive
Fukushima Nuclear Accident
Centrifugation, Density Gradient
Metals, Alkali
Spectrometry, Gamma
Strophanthins
Potassium
An element in the alkali group of metals with an atomic symbol K, atomic number 19, and atomic weight 39.10. It is the chief cation in the intracellular fluid of muscle and other cells. Potassium ion is a strong electrolyte that plays a significant role in the regulation of fluid volume and maintenance of the WATER-ELECTROLYTE BALANCE.
Radiation Monitoring
The observation, either continuously or at intervals, of the levels of radiation in a given area, generally for the purpose of assuring that they have not exceeded prescribed amounts or, in case of radiation already present in the area, assuring that the levels have returned to those meeting acceptable safety standards.
Rubidium
Laboratory Chemicals
Centrifugation, Isopycnic
A technique used to separate particles according to their densities in a continuous density gradient. The sample is usually mixed with a solution of known gradient materials and subjected to centrifugation. Each particle sediments to the position at which the gradient density is equal to its own. The range of the density gradient is usually greater than that of the sample particles. It is used in purifying biological materials such as proteins, nucleic acids, organelles, and cell types.
Radioactive Hazard Release
Chernobyl Nuclear Accident
Potassium Radioisotopes
Membrane Potentials
The voltage differences across a membrane. For cellular membranes they are computed by subtracting the voltage measured outside the membrane from the voltage measured inside the membrane. They result from differences of inside versus outside concentration of potassium, sodium, chloride, and other ions across cells' or ORGANELLES membranes. For excitable cells, the resting membrane potentials range between -30 and -100 millivolts. Physical, chemical, or electrical stimuli can make a membrane potential more negative (hyperpolarization), or less negative (depolarization).
Chalcogens
Germanium
Crown Ethers
Macrocyclic polyethers with the repeating unit of (-CH2-CH2-O)n where n is greater than 2 and some oxygens may be replaced by nitrogen, sulfur or phosphorus. These compounds are useful for coordinating CATIONS. The nomenclature uses a prefix to indicate the size of the ring and a suffix for the number of heteroatoms.
Zeolites
Decapodiformes
Lithium
Nostoc commune
Potassium Channels
Sodium
Ion Channels
Radioactive Fallout
Densitometry
Barium
Centrifugation, Zonal
Extrachromosomal Inheritance
Scintillation Counting
Action Potentials
Ultracentrifugation
Centrifugation
Process of using a rotating machine to generate centrifugal force to separate substances of different densities, remove moisture, or simulate gravitational effects. It employs a large motor-driven apparatus with a long arm, at the end of which human and animal subjects, biological specimens, or equipment can be revolved and rotated at various speeds to study gravitational effects. (From Websters, 10th ed; McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)
DNA, Circular
Any of the covalently closed DNA molecules found in bacteria, many viruses, mitochondria, plastids, and plasmids. Small, polydisperse circular DNA's have also been observed in a number of eukaryotic organisms and are suggested to have homology with chromosomal DNA and the capacity to be inserted into, and excised from, chromosomal DNA. It is a fragment of DNA formed by a process of looping out and deletion, containing a constant region of the mu heavy chain and the 3'-part of the mu switch region. Circular DNA is a normal product of rearrangement among gene segments encoding the variable regions of immunoglobulin light and heavy chains, as well as the T-cell receptor. (Riger et al., Glossary of Genetics, 5th ed & Segen, Dictionary of Modern Medicine, 1992)
Cations
Electrophysiology
Patch-Clamp Techniques
An electrophysiologic technique for studying cells, cell membranes, and occasionally isolated organelles. All patch-clamp methods rely on a very high-resistance seal between a micropipette and a membrane; the seal is usually attained by gentle suction. The four most common variants include on-cell patch, inside-out patch, outside-out patch, and whole-cell clamp. Patch-clamp methods are commonly used to voltage clamp, that is control the voltage across the membrane and measure current flow, but current-clamp methods, in which the current is controlled and the voltage is measured, are also used.
Ionic currents underlying spontaneous action potentials in isolated cerebellar Purkinje neurons. (1/1232)
Acutely dissociated cell bodies of mouse Purkinje neurons spontaneously fired action potentials at approximately 50 Hz (25 degrees C). To directly measure the ionic currents underlying spontaneous activity, we voltage-clamped the cells using prerecorded spontaneous action potentials (spike trains) as voltage commands and used ionic substitution and selective blockers to isolate individual currents. The largest current flowing during the interspike interval was tetrodotoxin-sensitive sodium current (approximately -50 pA between -65 and -60 mV). Although the neurons had large voltage-dependent calcium currents, the net current blocked by cobalt substitution for calcium was outward at all times during spike trains. Thus, the electrical effect of calcium current is apparently dominated by rapidly activated calcium-dependent potassium currents. Under current clamp, all cells continued firing spontaneously (though approximately 30% more slowly) after block of T-type calcium current by mibefradil, and most cells continued to fire after block of all calcium current by cobalt substitution. Although the neurons possessed hyperpolarization-activated cation current (Ih), little current flowed during spike trains, and block by 1 mM cesium had no effect on firing frequency. The outward potassium currents underlying the repolarization of the spikes were completely blocked by 1 mM TEA. These currents deactivated quickly (<1 msec) after each spike. We conclude that the spontaneous firing of Purkinje neuron cell bodies depends mainly on tetrodotoxin-sensitive sodium current flowing between spikes. The high firing rate is promoted by large potassium currents that repolarize the cell rapidly and deactivate quickly, thus preventing strong hyperpolarization and restoring a high input resistance for subsequent depolarization. (+info)Electrostatic interactions during activation of coagulation factor IX via the tissue factor pathway: effect of univalent salts. (2/1232)
Interaction between the Gla-domain of coagulation proteins and negatively charged phospholipid membranes is essential for blood coagulation reactions. The interaction is calcium-dependent and mediated both by electrostatic and hydrophobic forces. This report focuses on the electrostatic component of factor IX activation via the extrinsic pathway. Effective charges during the reaction are measured by ionic titration of activity, according to the Debye-Huckel and Gouy-Chapman models. Rates of activation decrease with ionic strength independently of the type of monovalent salt used to control ionic strength. Moreover, the effect of ionic strength decreases at concentrations of charged phospholipid approaching saturation levels, indicating that membrane charges participate directly in the ionic interaction measured. The effective charge on calcium-bound factor IX during activation on phospholipid membranes is 0.95+/-0.1. Possible sites mediating contacts between the Gla-domain and membranes are selected by geometrical criteria in several metal-bound Gla-domain structures. A pocket with a solvent opening-pore of area 24-38 A2 is found in the Gla-domain of factors IX, VII, and prothrombin. The pocket contains atoms with negative partial charges, including carboxylate oxygens from Gla residues, and has a volume of 57-114 A3, sufficient to accommodate additional calcium atoms. These studies demonstrate that electrostatic forces modify the activity coefficient of factor IX during functional interactions and suggest a conserved pocket motif as the contact site between the calcium-bound Gla-domain and charged membranes. (+info)Modulation of slow inactivation in human cardiac Kv1.5 channels by extra- and intracellular permeant cations. (3/1232)
1. The properties and regulation of slow inactivation by intracellular and extracellular cations in the human heart K+ channel hKv1.5 have been investigated. Extensive NH2- and COOH-terminal deletions outside the central core of transmembrane domains did not affect the degree of inactivation. 2. The voltage dependence of steady-state inactivation curves of hKv1.5 channels was unchanged in Rb+ and Cs+, compared with K+, but biexponential inactivation over 10 s was reduced from approximately 100 % of peak current in Na+ to approximately 65 % in K+, approximately 50 % in Rb+ and approximately 30 % in Cs+. This occurred as a result of a decrease in both fast and slow components of inactivation, with little change in inactivation time constants. 3. Changes in extracellular cation species and concentration (5-300 mM) had only small effects on the rates of inactivation and recovery from inactivation (tau recovery approximately 1 s). Mutation of residues at a putative regulatory site at R487 in the outer pore mouth did not affect slow inactivation or recovery from inactivation of hKv1.5, although sensitivity to extracellular TEA was conferred. 4. Symmetrical reduction of both intra- and extracellular cation concentrations accelerated and augmented both components of inactivation of K+ (Kd = 34.7 mM) and Cs+ (Kd = 20.5 mM) currents. These effects could be quantitatively accounted for by unilateral reduction of intracellular K+ (K+i) (Kd = 43.4 mM) or Cs+i with constant 135 mM external ion concentrations. 5. We conclude that inactivation and recovery from inactivation in hKv1.5 were not typically C-type in nature. However, the ion species dependence of inactivation was still closely coupled to ion permeation through the pore. Intracellular ion modulatory actions were more potent than extracellular actions, although still of relatively low affinity. These results suggest the presence of ion binding sites capable of regulating inactivation located on both intracellular and extracellular sides of the pore selectivity filter. (+info)Gating current studies reveal both intra- and extracellular cation modulation of K+ channel deactivation. (4/1232)
1. The presence of permeant ions can modulate the rate of gating charge return in wild-type human heart K+ (hKv1.5) channels. Here we employ gating current measurements in a non-conducting mutant, W472F, of the hKv1.5 channel to investigate how different cations can modulate charge return and whether the actions can be specifically localized at the internal as well as the external mouth of the channel pore. 2. Intracellular cations were effective at accelerating charge return in the sequence Cs+ > Rb+ > K+ > Na+ > NMG+. Extracellular cations accelerated charge return with the selectivity sequence Cs+ > Rb+ > Na+ = NMG+. 3. Intracellular and extracellular cation actions were of relatively low affinity. The Kd for preventing slowing of the time constant of the off-gating current decay (tau off) was 20.2 mM for intracellular Cs+ (Cs+i) and 358 mM for extracellular Cs+ (Cs+o). 4. Both intracellular and extracellular cations can regulate the rate of charge return during deactivation of hKv1.5, but intracellular cations are more effective. We suggest that ion crystal radius is an important determinant of this action, with larger ions preventing slowing more effectively. Important parallels exist with cation-dependent modulation of slow inactivation of ionic currents in this channel. However, further experiments are required to understand the exact relationship between acceleration of charge return and the slowing of inactivation of ionic currents by cations. (+info)Kir2.1 encodes the inward rectifier potassium channel in rat arterial smooth muscle cells. (5/1232)
1. The molecular nature of the strong inward rectifier K+ channel in vascular smooth muscle was explored by using isolated cell RT-PCR, cDNA cloning and expression techniques. 2. RT-PCR of RNA from single smooth muscle cells of rat cerebral (basilar), coronary and mesenteric arteries revealed transcripts for Kir2.1. Transcripts for Kir2.2 and Kir2.3 were not found. 3. Quantitative PCR analysis revealed significant differences in transcript levels of Kir2.1 between the different vascular preparations (n = 3; P < 0.05). A two-fold difference was detected between Kir2.1 mRNA and beta-actin mRNA in coronary arteries when compared with relative levels measured in mesenteric and basilar preparations. 4. Kir2.1 was cloned from rat mesenteric vascular smooth muscle cells and expressed in Xenopus oocytes. Currents were strongly inwardly rectifying and selective for K+. 5. The effect of extracellular Ba2+, Ca2+, Mg2+ and Cs2+ ions on cloned Kir2.1 channels expressed in Xenopus oocytes was examined. Ba2+ and Cs+ block were steeply voltage dependent, whereas block by external Ca2+ and Mg2+ exhibited little voltage dependence. The apparent half-block constants and voltage dependences for Ba2+, Cs+, Ca2+ and Mg2+ were very similar for inward rectifier K+ currents from native cells and cloned Kir2.1 channels expressed in oocytes. 6. Molecular studies demonstrate that Kir2.1 is the only member of the Kir2 channel subfamily present in vascular arterial smooth muscle cells. Expression of cloned Kir2.1 in Xenopus oocytes resulted in inward rectifier K+ currents that strongly resemble those that are observed in native vascular arterial smooth muscle cells. We conclude that Kir2.1 encodes for inward rectifier K+ channels in arterial smooth muscle. (+info)Properties and functional roles of hyperpolarization-gated currents in guinea-pig retinal rods. (6/1232)
1. The inward rectification induced by membrane hyperpolarization was studied in adult guinea-pig rods by the perforated-patch-clamp technique. 2. CsCl blocked the rectification observed in both voltage- and current-clamp recordings at voltages negative to -60 mV, while BaCl2 blocked the inward relaxation observed at voltages positive to -60 mV. The current activated at -90 mV had a low selectivity between sodium and potassium and reversed at -31.0 mV. 3. These observations suggest that two inward rectifiers are present in guinea-pig rods: a hyperpolarization-activated (Ih) and a hyperpolarization-deactivated (Ikx) current. The functional roles of Ih and Ikx were evaluated by stimulating rods with currents sinusoidally modulated in time. 4. Rods behave like bandpass amplifiers, with a peak amplification of 1.5 at about 2 Hz. For hyperpolarizations that mainly gate Ikx, amplification and phase shifts are fully accounted for by a rod membrane analogue model that includes an inductance. For hyperpolarizations that also gate Ih, a harmonic distortion became apparent. 5. Bandpass filtering and amplification of rod signals, associated with Ih and Ikx gating by membrane hyperpolarization, are strategically located to extend, beyond the limits imposed by the slow phototransductive cascade, the temporal resolution of signals spreading to the rod synapse. (+info)Mechanisms of delta-hexachlorocyclohexane toxicity: II. Evidence for Ca2+-dependent K+-selective ionophore activity. (7/1232)
delta-Hexachlorocyclohexane (delta-HCH) interacts with cardiac ryanodine-sensitive Ca2+ channels (RyR2), accounting in part for altered Ca2+ transients and contractility (reported in companion report). Analysis of channel gating kinetics in the presence of delta-HCH also revealed a nonfluctuating membrane current that remained even after RyR2 channels were blocked. We further elucidated the nature of a direct interaction between delta-HCH and biological membranes by measuring ionic currents across planar lipid bilayers made from defined lipids lacking cellular protein using voltage-clamp. Dimethyl sulfoxide, in the presence or absence of 50 microM gamma-HCH (lindane) or delta-HCH, produced negligible steady-state current with symmetric 100 mM CsCl in the range of +/-50 mV. However, the addition of 50 microM Ca2+ to the bilayer chamber in the presence of delta-HCH induced a profound increase in ionic permeability that was not seen in the presence of gamma-HCH or dimethyl sulfoxide control. Significantly, the permeability increase 1) was proportional with increasing Ca2+ to approximately 600 microM and saturated between 1 and 2 mM Ca2+ regardless of holding potential, 2) occurred only when delta-HCH and Ca2+ were added to the same side of the membrane, and 3) was independent of the order of addition or of the side of the membrane to which delta-HCH and Ca2+ was added. The Ca2+-dependent current produced by delta-HCH was highly selective for monovalent cations (K+ >> Cs+ > Na+), with negligible conductance for Ca2+ or Cl-. In symmetric 100 mM K+, the conductance induced with 50 microM concentration each of delta-HCH and Ca2+ was 4.25 pA/mV. The results show that delta-HCH increases the ionic permeability of phospholipid membranes by two distinct Ca2+-dependent mechanisms: one mediated through RyR and the other mediated by a unique ionophore activity. (+info)Coordinate regulation of gonadotropin-releasing hormone neuronal firing patterns by cytosolic calcium and store depletion. (8/1232)
Elevation of cytosolic free Ca2+ concentration ([Ca2+]i) in excitable cells often acts as a negative feedback signal on firing of action potentials and the associated voltage-gated Ca2+ influx. Increased [Ca2+]i stimulates Ca2+-sensitive K+ channels (IK-Ca), and this, in turn, hyperpolarizes the cell and inhibits Ca2+ influx. However, in some cells expressing IK-Ca the elevation in [Ca2+]i by depletion of intracellular stores facilitates voltage-gated Ca2+ influx. This phenomenon was studied in hypothalamic GT1 neuronal cells during store depletion caused by activation of gonadotropin-releasing hormone (GnRH) receptors and inhibition of endoplasmic reticulum (Ca2+)ATPase with thapsigargin. GnRH induced a rapid spike increase in [Ca2+]i accompanied by transient hyperpolarization, followed by a sustained [Ca2+]i plateau during which the depolarized cells fired with higher frequency. The transient hyperpolarization was caused by the initial spike in [Ca2+]i and was mediated by apamin-sensitive IK-Ca channels, which also were operative during the subsequent depolarization phase. Agonist-induced depolarization and increased firing were independent of [Ca2+]i and were not mediated by inhibition of K+ current, but by facilitation of a voltage-insensitive, Ca2+-conducting inward current. Store depletion by thapsigargin also activated this inward depolarizing current and increased the firing frequency. Thus, the pattern of firing in GT1 neurons is regulated coordinately by apamin-sensitive SK current and store depletion-activated Ca2+ current. This dual control of pacemaker activity facilitates voltage-gated Ca2+ influx at elevated [Ca2+]i levels, but also protects cells from Ca2+ overload. This process may also provide a general mechanism for the integration of voltage-gated Ca2+ influx into receptor-controlled Ca2+ mobilization. (+info)
Cesium 137 (band)
"Cesium_137 V:4.0 - News". Archived from the original on 2008-07-09. Retrieved 2008-10-08. Official Cesium_137 website Cesium_ ... Cesium_137 is named after a radioactive isotope of caesium. It continues a tradition in industrial music of incorporating a ... military and was no longer available as a member of Cesium_137. Cesium_137 had a hiatus of three years before their next ... Cesium_137's style was much mellower and synthpop inspired and less angst-ridden on these releases than on Advanced/Decay. In ...
Caesium
The high density of the caesium ion makes solutions of caesium chloride, caesium sulfate, and caesium trifluoroacetate (Cs(O ... Caesium-134, and to a lesser extent caesium-135, have also been used in hydrology to measure the caesium output by the nuclear ... This solution can be evaporated to produce caesium chloride or transformed into caesium alum or caesium carbonate. Though not ... The primary smaller-scale commercial compounds of caesium are caesium chloride and nitrate. Alternatively, caesium metal may be ...
Caesium dodecaborate
... is an inorganic compound with the formula Cs2B12H12. It is a salt composed of caesium and dodecaborate(12 ... which is then treated with caesium hydroxide to precipitate Cs2B12H12. Salts of B12H122− have been investigated for boron ...
Caesium hydride
... or cesium hydride (CsH) is a compound of caesium and hydrogen. It is an alkali metal hydride. It was the first ... It is very difficult to make caesium hydride in a pure form. Caesium hydride can be produced by heating caesium carbonate and ... The caesium nuclei in CsH can be hyperpolarized through interactions with an optically pumped caesium vapor in a process known ... and showed promise in early studies of an ion propulsion system using caesium. It is the most reactive stable alkaline metal ...
Caesium titanate
... or cesium titanate is an inorganic compound with the formula Cs2TiO3. Like most other inorganic titanates, it ... Other caesium titanates include Cs2Ti5O11 and Cs2Ti6O13 and the hydrate Cs2Ti5O11•1.5H2O. Grey, I.E.; Madsen, I.C.; Watts, J.A ... Bursill, L.A.; Kwiatkowska, J. (July 1985). "New cesium titanate layer structures". Journal of Solid State Chemistry. 58 (3): ... Caesium compounds, All stub articles, Inorganic compound stubs). ...
Caesium chloride
Caesium hydroxide is obtained by electrolysis of aqueous caesium chloride solution: 2 CsCl + 2 H2O → 2 CsOH + Cl2 + H2 Caesium ... In the laboratory, CsCl can be obtained by treating caesium hydroxide, carbonate, caesium bicarbonate, or caesium sulfide with ... Caesium chloride or cesium chloride is the inorganic compound with the formula CsCl. This colorless salt is an important source ... CsCl converts to caesium sulfate upon being heated in concentrated sulfuric acid or heated with caesium hydrogen sulfate at 550 ...
Caesium sesquioxide
... is a chemical compound with the formula Cs2O3 or Cs4O6. In terms of oxidation states, Caesium in this ... It can be created by thermal decomposition of caesium superoxide at 290 °C. 4 CsO2 → Cs4O6 + O2 The compound is often studied ... Compared to the other caesium oxides, this phase is less well studied, but has been long present in the literature. ... "Characterization of Oxides of Cesium". The Journal of Physical Chemistry B. American Chemical Society (ACS). 108 (33): 12360- ...
Caesium tungstate
... or cesium tungstate is an inorganic chemical compound that is notable for forming a very dense liquid in ... Caesium tungstate can be obtained by the reaction between caesium chloride (CsCl) and silver tungstate (Ag2WO4) or the reaction ... Cesium tungstate v t e (Articles needing additional references from February 2016, All articles needing additional references, ... Caesium tungstate forms colorless crystals, which are strongly hygroscopic. A phase transition from orthorhombic to hexagonal ...
Caesium bicarbonate
... or cesium bicarbonate is a chemical compound with the chemical formula CsHCO3. It can be produced through ... but less common than caesium carbonate. Weast, Robert C., ed. (1981). CRC Handbook of Chemistry and Physics (62nd ed.). Boca ... Caesium compounds, Bicarbonates, All stub articles, Inorganic compound stubs). ... the following reaction: Cs2CO3 + CO2 + H2O → 2 CsHCO3 The compound can be used for synthesizing caesium salts, ...
Caesium chromate
... or cesium chromate is an inorganic compound with the formula Cs2CrO4. It is a yellow crystalline solid that is ... Caesium chromate is mainly obtained from the reaction of chromium(VI) oxide with caesium carbonate, wherein carbon dioxide gas ... Therein, caesium vapour was produced by reaction of caesium chromate with silicon, boron, or titanium as reducing agents. The ... yields the chromate following alkalinisation with caesium hydroxide: Cs2Cr2O7(aq) + 2 CsOH(aq) → 2 Cs2CrO4(aq) + H2O(ℓ) Caesium ...
Caesium-137
... (137 55Cs ), cesium-137 (US), or radiocaesium, is a radioactive isotope of caesium that is formed as one of the ... Caesium-137 reacts with water, producing a water-soluble compound (caesium hydroxide). The biological behaviour of caesium is ... shape as caesium from used nuclear fuel contains stable caesium-133 and also long-lived caesium-135. Isotope separation is too ... Caesium-137 was discovered by Glenn T. Seaborg and Margaret Melhase. Caesium-137 has a half-life of about 30.05 years. About ...
Caesium enneabromodibismuthate
... is an inorganic compound with the formula Cs3Bi2Br9. It is one of the coordination complexes ... It can also be obtained by reacting cesium bromide and bismuth(III) bromide in DMF, followed by vaporizing the solvent. Its ... "Phase Transition in Cesium Enneabromodibismuthate(III), Cs3Bi2Br9; an 81Br and 209Bi NQR Study". Zeitschrift für Naturforschung ... it can be synthesized from a hydrobromic acid solution of stoichiometric amounts of caesium bromide and bismuth hydroxide or ...
Caesium azide
... or cesium azide is an inorganic compound of caesium and nitrogen. It is a salt of azide with the formula CsN3. ... Caesium azide can be prepared from the neutralization reaction between hydrazoic acid and caesium hydroxide: CsOH + HN3 → CsN3 ... H2O Caesium carbonate can also be used as the base: Cs2CO3 + HN3 → CsN3 + CO2 + H2O Caesium sulfate reacts with barium azide to ... CsN3 adopts the same structure as KN3, RbN3, and TlN3, crystallizing in a tetragonal distorted caesium chloride structure where ...
Allium caesium
"Allium caesium". Royal Horticultural Society. 2002. Retrieved 5 January 2018. "Allium caesium". www.johnscheepers.com. ... Allium caesium, light blue garlic, is a species of herbaceous perennial flowering plant native to central Asia (Xinjiang, ... In the US it is suitable for hardiness zones 4-7. The Plant List Flora of China v 24 p 199 "Allium caesium". Farmer Gracy. ... The Latin specific epithet caesium means "grey-blue". In cultivation in the UK, this plant has gained the Royal Horticultural ...
Caesium sulfate
... or cesium sulfate is the inorganic compound and salt with the formula Cs2SO4. It is a white water-soluble solid ... "The crystal structure of cesium sulfate, beta-Cs2SO4" Acta Chemica Scandinavica, Series A: 1976, 30, p198. Caesium sulfate data ...
Caesium bisulfate
... or cesium hydrogen sulfate is an inorganic compound with the formula CsHSO4. The caesium salt of bisulfate, ... Based on the results of X-ray crystallography, the structure consists of tetrahedral sulfate centers that bridge caesium ions. ... "Phase transition behavior and proton conduction mechanism in cesium hydrogen sulfate/silica composite". Journal of Physics and ...
Caesium bromide
... or cesium bromide is an ionic compound of caesium and bromine with the chemical formula CsBr. It is a white or ... Caesium bromide. nlm.nih.gov Schulz, L. G. (1951). "Polymorphism of cesium and thallium halides". Acta Crystallographica. 4 (6 ... Caesium compounds, Alkali metal bromides, Caesium chloride crystal structure). ... Caesium bromide can be prepared via following reactions: Neutralization: CsOH (aq) + HBr (aq) → CsBr (aq) + H2O (l) Cs2(CO3) ( ...
Caesium perchlorate
... or cesium perchlorate (CsClO4), is a perchlorate of caesium. It forms white crystals, which are sparingly ... as francium perchlorate coprecipitates with caesium perchlorate. When heated, CsClO4 decomposes to caesium chloride above 250 ° ...
Caesium nitrate
... caesium nitrate decomposes on gentle heating to give caesium nitrite: 2 CsNO3 → 2 CsNO2 + O2 Caesium also forms two unusual ... Caesium nitrate or cesium nitrate is a salt with the chemical formula CsNO3. An alkali metal nitrate, it is used in pyrotechnic ... The caesium emissions are chiefly due to two powerful spectral lines at 852.113 nm and 894.347 nm. Caesium nitrate prisms are ... ISBN 0-8493-0462-8.. "ChemIDplus - 7789-18-6 - NLSCHDZTHVNDCP-UHFFFAOYSA-N - Cesium nitrate - Similar structures search, ...
Caesium iodide
... or cesium iodide (chemical formula CsI) is the ionic compound of caesium and iodine. It is often used as the ... Caesium iodide photocathodes are highly efficient at extreme ultraviolet wavelengths. Bulk caesium iodide crystals have the ... Wikimedia Commons has media related to Caesium iodide. Cesium iodide. U.S. National Library of Medicine Haynes, p. 4.57 Haynes ... Caesium compounds, Iodides, Alkali metal iodides, Metal halides, Caesium chloride crystal structure). ...
Caesium standard
The first caesium clock was built by Louis Essen in 1955 at the National Physical Laboratory in the UK. and promoted worldwide ... Caesium atomic clocks are one of the most accurate time and frequency standards, and serve as the primary standard for the ... This particular cesium resonance was agreed upon under la Convention du Mètre and remains to the present time as the official ... The caesium atom has a ground state electron state with configuration [Xe] 6s1 and, consequently, atomic term symbol 2S1/2. ...
Hieracium caesium
... is a species of flowering plant belonging to the family Asteraceae. Its native range is Europe. "Hieracium ... caesium Fr. , Plants of the World Online , Kew Science". Plants of the World Online. Retrieved 15 February 2021. (Articles with ...
Caesium oxide
... may refer to: Caesium suboxides (Cs7O, Cs4O, and Cs11O3) Caesium monoxide (Cs2O, the most common oxide) Caesium ... Caesium oxide (IUPAC name), or cesium oxide, describes inorganic compounds composed of caesium and oxygen. Several binary ( ... peroxide (Cs2O2) Caesium sesquioxide (Cs2O3) Caesium superoxide (CsO2) Caesium ozonide (CsO3) Simon, A. (1997), "Group 1 and 2 ... containing only Cs and O) oxides of caesium are known. ...
Plagiomimicus caesium
"Plagiomimicus caesium report". Integrated Taxonomic Information System. Retrieved 2019-09-24. "Plagiomimicus caesium". GBIF. ... Plagiomimicus caesium is a species of moth in the family Noctuidae (the owlet moths). It is found in North America. The MONA or ... "Plagiomimicus caesium species information". BugGuide. Retrieved 2019-09-24. "North American Moth Photographers Group, ... Plagiomimicus caesium". Retrieved 2019-09-24. Lafontaine, J. Donald; Schmidt, B. Christian (2010). "Annotated check list of the ...
Acer caesium
... subspecies giraldii grows to approximately 10 m (32.8 ft) tall, and is found in north-western China. The flowers ... Acer caesium is an Asian species of maple found in India, Pakistan, Nepal, and China (Gansu, Henan, Hubei, Ningxia, Shaanxi, ... "Acer caesium Wall. ex Brandis". World Checklist of Selected Plant Families. Royal Botanic Gardens, Kew - via The Plant List. Xu ... "Acer caesium Wall. ex Brandis". Flora of Pakistan. Missouri Botanical Garden - via Tropicos.org. Moore, D.; White, J. (2005) [ ...
Caesium ozonide
... (CsO3) is an oxygen-rich compound of caesium. It is an ozonide, meaning it contains the ozonide anion (O3−). It ... Vol'nov, I. I.; Matveev, V. V. (1963). "Synthesis of cesium ozonide through cesium superoxide". Bulletin of the Academy of ... caesium ozonide will quickly decompose to caesium superoxide (CsO2). In fact, the compound is metastable to decomposition into ... The compound will react strongly with any water in the air forming caesium hydroxide. 2 CsO 3 + H 2 O ⟶ 2 CsOH + 5 2 O 2 {\ ...
Caesium cyanide
... (chemical formula: CsCN) is the caesium salt of hydrogen cyanide. It is a white solid, easily soluble in water ... Caesium cyanide has chemical properties similar to potassium cyanide and is very toxic. Hydrogen cyanide reacts with caesium ... Caesium compounds, All stub articles, Inorganic compound stubs). ... hydroxide giving caesium cyanide and water: HCN + CsOH → CsCN ...
Caesium oxalate
... or cesium oxalate (American spelling) is the oxalate of caesium. Caesium oxalate has the chemical formula of Cs2C2O4. Caesium ... Caesium carbonate can react with oxalic acid in aqueous solution to give caesium oxalate. Cs2CO3 + H2C2O4•2H2O → Cs2C2O4•H2O + ... CO2 + H2O Caesium oxalate can be reduced back into caesium carbonate and carbon dioxide by thermal decomposition. Cs2C2O4 → ... The oxalate may form a complex with a metal that can make a salt with caesium. Examples include: Mixed anion compounds ...
Caesium hydroxide
... is a strong base (pKa= 15.76) containing the highly reactive alkali metal caesium, much like the other alkali ... In fact, caesium hydroxide is corrosive enough to dissolve through glass quickly. Due to its high reactivity, caesium hydroxide ... Laboratory caesium hydroxide is typically a hydrate. It is an anisotropic etchant of silicon, exposing octahedral planes. This ... This compound is not commonly used in experiments due to the high extraction cost of caesium and its reactive behaviour. It ...
Caesium auride
Caesium compounds, Semiconductor materials, Caesium chloride crystal structure, All stub articles, Inorganic compound stubs). ... Caesium auride is the inorganic compound with the formula CsAu. It is the Cs+ salt of the unusual Au− anion. CsAu is obtained ... The compound hydrolyzes readily, yielding caesium hydroxide, metallic gold, and hydrogen. 2 CsAu + 2 H2O → 2 CsOH + 2 Au + H2 ... by heating a stoichiometric mixture of caesium and gold. The two metallic-yellow liquids react to give a transparent yellow ...
Cesium | ToxFAQsâ„¢ | ATSDR
Stable (non-radioactive) cesium has been found in at least 10 of the 1,585 National Priority List (NPL) sites identified by the ... High levels of radioactive cesium can cause nausea, vomiting, diarrhea, bleeding, coma, and even death. This may occur after ... Environmental Protection Agency (EPA). Radioactive cesium has been found in at least 22 of the 1,585 NPL sites identified by ... Exposure to stable or radioactive cesium occurs from ingesting contaminated food or drinking water or breathing contaminated ...
CDC Radiation Emergencies | Cesium-137 (Cs-137)
cesium
... also spelled caesium, chemical element of Group 1 (also called Group Ia) of the periodic table, the alkali metal group, and the ... a large number of radioactive isotopes from cesium-123 to cesium-144 have been prepared. Cesium-137 is useful in medical and ... cesium (Cs), also spelled caesium, chemical element of Group 1 (also called Group Ia) of the periodic table, the alkali metal ... Pollucite (Cs4Al4Si9O26∙H2O) is a cesium-rich mineral resembling quartz. It contains 40.1 percent cesium on a pure basis, and ...
Caesium clock Definition & Meaning | Dictionary.com
Caesium clock definition at Dictionary.com, a free online dictionary with pronunciation, synonyms and translation. Look it up ... Words nearby caesium clock. Caesarism, caesaropapism, Caesar salad, caesious, caesium, caesium clock, caespitose, caesura, ... a type of atomic clock that uses the frequency of radiation absorbed in changing the spin of electrons in caesium atomsSee also ...
NIOSHTIC-2 Publications Search - 00051018 - Acute toxicity of cesium and rubidium compounds.
... and the iodides of cesium and rubidium. The hydroxides of cesium and rubidium were markedly more toxic than the iodides. ... Potassium-hydroxide (1310583) was irritating to both intact and abraded skin, whereas cesium- hydroxi ... and oral acute toxicity studies were conducted on the hydroxides of cesium (7440462), rubidium, and potassium (7440097) ... and the iodides of cesium and rubidium. The hydroxides of cesium and rubidium were markedly more toxic than the iodides. ...
Cesium Aluminate | AMERICAN ELEMENTS ®
Cesium Aluminate (Cs2O) • (CsAlO3)2 bulk & research qty manufacturer. Properties, SDS, Applications, Price. Free samples ... Cesium. 55 Cs 132.905400000 Cesium See more Cesium products. Cesium (or Caesium) (atomic symbol: Ce, atomic number: 55) is a ... The cesium atom has a radius of 265 pm and a Van der Waals radius of 343 pm. Cesium is a member of the alkali group of metals. ... About Cesium Aluminate. Cesium Aluminate is generally immediately available in most volumes. High purity, submicron and ...
Acer caesium PFAF Plant Database
Cesium | Cs (Element) - PubChem
Radiation-Induced Illness: Cesium-137 Exposure | GreenMedInfo
Cesium-137 exposure in young people irradiated in utero or in age up to 4 results in low immunoglobulin A and elevated ... Low dose Cesium-137 exposure results in depletion of vitamins A and E in the rat liver. Mar 01, 1999. ... Problem Substances : Cesium-137, Plutonium-239, Plutonium-240, Radionuclides, Silver-108m, Strontium-90 ... American ginseng reduces genotoxicity lymphocytes after Cesium irradiation.Jan 10, 2004. Click here to read the entire abstract ...
Anapole moment Measurements in Atomic Cesium - Coherent and Quantum Optics Lab - Purdue University
Isotope data for cesium-143 in the Periodic Table
Detailed decay information for the isotope cesium-143 including decay chains and daughter products. ... Cesium Pictures Page. Al. Si. P. S. Cl. Ar. K. Ca. Cesium Technical Data. Sc. Ti. V. Cr. Mn. Fe. Co. Ni. Cu. Zn. Ga. Ge. As. Se ... Isotopes of Cesium (click to see decay chain):. 112Cs 113Cs 114Cs 115Cs 116Cs 117Cs 118Cs 119Cs 120Cs 121Cs 122Cs 123Cs 124Cs ... Cesium Main Page. Black White Gray. B. C. N. O. F. Ne. ...
Sample of the element Cesium in the Periodic Table
Sample of the element Cesium in the Periodic Table
Cancer cured with cesium chloride & proteolytic enzymes
I used Cesium Chloride for my High pH Therapy with vitamin A, zinc, and selenium according to Brewers Protocol. I also took ... a. High pH Therapy Using Cesium Chloride b. Proteolytic Enzyme Therapy using Wobenzyme N c. Coffee Enemas 3.) Continuation of ... You might also want to know that there is a definitive book on Cesium Chloride, one of the aspects of Gangas Combination. The ... Significant is the report on the presence of high levels of Cesium (Cs) and Rubidium (Rb) in foods consumed in these areas, ...
Re: Cesium Chloride for cancer (NOT toxic) - IMPORTANT DETAILS. (Cancer Forum) 6/21/2013 2076802
Cesium chloride (unlike bicarbonate of soda), must always be taken on a full stomach. ... Re: Cesium Chloride for cancer (NOT toxic) - IMPORTANT DETAILS.. PS. Cesium chloride (unlike bicarbonate of soda), must always ... Cesium Chloride for cancer (NOT toxic) - IMPORTANT... Chris12 10 years ago 3,422 C * So, what do important organizations like ... Cesium chloride (unlike bicarbonate of soda), ... Chris12 10 years ago 2,647 This is the position of the above message within ...
Cesium 137 - Luminous (CD) - AlterNation
Pressure-Induced Phase Changes in Cesium Lead Bromide Perovskite Nanocrystals with and without Ruddlesden-Popper Faults ...
Pressure Effects on Structure and Optical Properties in Cesium Lead Bromide Perovskite Nanocrystals journal, July 2017 * Xiao, ... Pressure Response of Photoluminescence in Cesium Lead Iodide Perovskite Nanocrystals journal, April 2018 * Beimborn, J. Curtis ... Coherent Nanotwins and Dynamic Disorder in Cesium Lead Halide Perovskite Nanocrystals journal, April 2017 * Bertolotti, ... Nanocrystals of Cesium Lead Halide Perovskites (CsPbX 3 , X = Cl, Br, and I): Novel Optoelectronic Materials Showing Bright ...
Assessment of Cesium Compound Behavior during Simultaneous Failure of Reactor Pressure Vessels and Spent Fuel Pools Using...
The releases of cesium compounds in gas and aerosol forms from RPVs and SFPs of Units 1–3 of the Fukushima Daiichi NPP ... It was found that the behavior of cesium compounds was mainly governed by the aerosols and atmospheric temperatures, which ... cesium iodide (CsI) in gas form and cesium hydroxide (CsOH) in aerosol form are selected as the representative compounds ... The release of cesium compounds from the SFPs of Unit 1 and Unit 3 was assumed to start after the H2 explosion which was the ...
Hasetins sell Cesium Marketplace View Asian Metal
Cesium In My Blood | International Uranium Film Festival
Coproducer Zenildo Barreto. Special Achievement Award 2013. A scrap merchant in Goiania, a million-town in Brazil come upon a heavy metal box in a pulled down hospital. He was happy, because of its weight. What he did not know, was that he find a deadly dangerous machine who should kill his people. And contaminate thousands of innocent people in the town. He is fixing some help to get the machine home, and in the night start the work to cut it in pieces.. Then in the middle of it a blue star is shining. And vibrating! Like a star has fallen down! But it was a cobolt-canon from nearby hospital who have served to cure cancer but now was a killer. And the blue light was Cecium 137.. The merchant decorated his wife with it and gives his six years old daughter to eat on a bred. Some pieces was sold as far as Sao Paulo. Block after block of central town went radioactive and packed in barrels outside the town. The authority say that 482 similar cobolt-canons exist in Brazil, but where?. Around 5000 ...
DailyMed - TRACE MINERAL CORD- aluminum, antimony, barium, beryllium, bismuth, boron, bromine, calcium, carbon, cerium, cesium,...
CESIUM (UNII: 1KSV9V4Y4I) (CESIUM - UNII:1KSV9V4Y4I) CESIUM. 4 [hp_X] in 1 mL. ... Label: TRACE MINERAL CORD- aluminum, antimony, barium, beryllium, bismuth, boron, bromine, calcium, carbon, cerium, cesium, ... TRACE MINERAL CORD- aluminum, antimony, barium, beryllium, bismuth, boron, bromine, calcium, carbon, cerium, cesium, chloride, ... TRACE MINERAL CORD- aluminum, antimony, barium, beryllium, bismuth, boron, bromine, calcium, carbon, cerium, cesium, chloride, ...
Old Caesium Image Compressor versions download
... [v2.3.1] Caesium Image Compressor Windows Installer ... Old Caesium Image Compressor versions download. [v2.3.1] Caesium Image Compressor Windows Portable ... Old Caesium Image Compressor versions download. [v2.3.1] Caesium Image Compressor macOS DMG ... Old Caesium Image Compressor versions download. [v2.3.0] Caesium Image Compressor Windows Installer ...
Cesium | Archives | Cemetech
The new Cesium update lets me use it again, and Im thrilled to be able to use Cesium again and not have to use Artifice to run ... I updated to Os 5.7 (on a ti 84 plus ce python), and cesium wont work with Os 5.7. Can you please make an update? thanks! ... Yeah, that happens to me a lot.) All in all, I really enjoy Cesium, and I recommend it to anyone who sees this. However, I ... I may not have a CE, but Ive tried Cesium on my friends calculator. I was really excited to play around with it because of ...
Sydney Brenner - Scientist - Using magnesium to compete with caesium: the experiment - Web of Stories
β-Mannosylation via O-Alkylation of Anomeric Cesium Alkoxides: Mechanistic Studies and Synthesis of the Hexasaccharide Core of...
1H NMR spectra of 3,4,6-tri-O-CD3-D-mannose (44, α/β = 5.2/1, colored in blue, bottom spectrum) and its corresponding cesium ... Calculated activation free energies of the O-allylation of anomeric cesium alkoxides 7-Cs, 9-Cs, 10-Cs, and 11-Cs with allyl ... Cesium alkoxide 7-Cs is used as the base to calculate the reaction energies of all deprotonation reactions. All energies are in ... Calculated activation free energies of the O -allylation of anomeric cesium alkoxides 7-Cs… ...
Highest 'Official' Measurement Ever: Wild Mushrooms Far From Fukushima Nuclear Plant Contain 31,000 Bq/Kg Of Radioactive Cesium...
The highest official measurement for wild mushrooms was last year, when 28,000 Bq/kg of radioactive cesium was found in wild ... Tochigi Prefecture announced on August 6 that 31,000 Bq/kg of radioactive cesium was detected in wild "Lactarius volemus" ( ... They found 420,000 becquerels/kg of radioactive cesium in mushrooms harvested in Akougi District of Namie-machi on March 28, ... 31,000 Bq/Kg of #Radioactive Cesium in Wild Mushrooms in Nikko City, Tochigi Prefecture, Highest "Official" Measurement Ever ( ...
Crystal structure and proton conductivity of a new Cs3(H2PO4)(HPO4)·2H2O phase in the caesium di- and monohydrogen...
Crystal structure and proton conductivity of a new Cs3(H2PO4)(HPO4)·2H2O phase in the caesium di- and monohydrogen ... Crystal structure and proton conductivity of a new Cs3(H2PO4)(HPO4)·2H2O phase in the caesium di- and monohydrogen ... The crystal structure of caesium dihydrogen orthophosphate monohydrogen orthophosphate dihydrate, Cs3(H1.5PO4)2·2H2O, has been ... Keywords: acid salt; caesium dihydrogen phosphate; crystal structure; ferroelectric properties; mechanochemistry; ...