A New Chromo-chemodosimeter Selective for Sulfide Anion
NIOSHTIC-2 Publications Search - 20039000 - Handwipe disclosing method for the presence of lead.
A change in color from pink to red, where rhodizonate anions are used, or brown to black, where sulfide anions are used, is ... The lead is solubilized with an aqueous acid solution and treated with rhodizonate or sulfide anions. ... A change in color from pink to red, where rhodizonate anions are used, or brown to black, where sulfide anions are used, is ... The lead is solubilized with an aqueous acid solution and treated with rhodizonate or sulfide anions. ...https://www.cdc.gov/niosh/nioshtic-2/20039000.html
What does divalent mean?
For instance, S2- is the sulfide anion. A divalent cation is missing two electrons as compared with the neutral atom. For ... Divalent anions are atoms or radicals with two additional electrons when compared to their elemental state. ...http://www.definitions.net/definition/divalent
Journal Article: Assistant Professor of Chemistry Jason Schmink | Bryn Mawr College
2,2-Diphenyl-1,3-oxathiolane slowly liberates a vinyl sulfide anion under basic conditions. Using a Pd/Xantphos catalyst system ... Palladium-Catalyzed Synthesis of Aryl Vinyl Sulfides via 1,3-Oxathiolanes As Vinyl Sulfide Surrogates ... A nontraditional approach to synthesizing aryl vinyl sulfides is described. ... to activate a wide range of aryl bromides, this transient sulfide species can be effectively trapped and fed into a traditional ...https://www.brynmawr.edu/news/journal-article-assistant-professor-chemistry-jason-schmink
Cell Dissociation with Trypsin | Sigma-Aldrich
Loss of zinc due to precipitation in presence of oxide, peroxide, carbonate, hydroxyl, phosphate and sulfide anions. ...http://www.sigmaaldrich.com/technical-documents/articles/biology/cell-dissociation-with-trypsin.html
Blood Falls - Wikipedia
No sulfide anions (HS−) are found in the system. This suggests an intricate and poorly understood interaction between the ...https://en.wikipedia.org/wiki/Blood_Falls
Vitamin B12 total synthesis - Wikipedia
Dimethylamine addition opened the thiolactone ring with an exocyclic alkene group in 60 by elimination of the sulfide anion ... hydrogen sulfide) The eastern part of the molecule BC (cyanobromide 37) and the western part AD (thiodextrolin 55, with the ... propionic acid ester group racemized) were then joined using potassium t-butoxide to thioether 56 (through a sulfide ion ...https://en.wikipedia.org/wiki/Vitamin_B12_total_synthesis
RCSB PDB - 1CAN: CRYSTALLOGRAPHIC STUDIES OF THE BINDING OF PROTONATED AND UNPROTONATED INHIBITORS TO CARBONIC...
Crystallographic studies of the binding of protonated and unprotonated inhibitors to carbonic anhydrase using hydrogen sulphide ... OF THE BINDING OF PROTONATED AND UNPROTONATED INHIBITORS TO CARBONIC ANHYDRASE USING HYDROGEN SULPHIDE AND NITRATE ANIONS. *DOI ...http://www.rcsb.org/pdb/explore/explore.do?structureId=1can
Patent US7394091 - Composite nano-particle and method for preparing the same - Google Patents
... an anion aqueous solution for co-precipitation as a nano-crystal and a cation aqueous solution are added, in that order. Then, ... As an anion material are used, for example sodium sulfide, thiourea, etc. As a cation material is used, for example a metallic ... Then, an anion aqueous solution and a cation aqueous solution are added so as to be a given ratio (for example, anion: cation=1 ... the sulfide phosphor matrix as an anion material and Group II metal as a cation material so as to coprecipitate the anion ...http://www.google.com/patents/US7394091?dq=7,177,838
Cycling of oxyanion-forming trace elements in groundwaters from a freshwater deltaic marsh, Estuarine Coastal and Shelf Science...
Arsenic-sulfides confound anion exchange resin speciation of aqueous arsenic. Jay, J.A.; Blute, N.K.; Hemond, H.F.; Durant, J.L ... The chemistry of hydrogen sulfide and iron sulfide systems in natural waters ... SULFIDE (4500-S2−)/Methylene Blue Method. Standard Methods for the Examination of Water and WasteWater ... The solubility of As2S3 and speciation of as in dilute and sulphide-bearing fluids at 25 and 90°C ...https://www.deepdyve.com/lp/elsevier/cycling-of-oxyanion-forming-trace-elements-in-groundwaters-from-a-icJyqMQaSK
A highly selective, fast-response and fluorescent turn on chemosensor for the detection of Cu2+ ions and its potential...
One-pot fabrication of FRET-based fluorescent probe for detecting copper ion and sulfide anion in 100% aqueous media ... A new selective chromogenic and turn-on fluorogenic probe for copper(II) in solution and vero cells: recognition of sulphide by ... Luminescence of ferrocene-modified pyrene derivatives for turn-on sensing of Cu2+ and anions ... Recognition of copper and hydrogen sulfide in vitro using a fluorescein derivative indicator ...https://www.deepdyve.com/lp/elsevier/a-highly-selective-fast-response-and-fluorescent-turn-on-chemosensor-xMiu4Rzpyn/1
Cadmium sulfide - Wikipedia
In the chemical bath deposition method, thin films of CdS have been prepared using thiourea as the source of sulfide anions and ... Cadmium sulfide can be dissolved in acids. CdS + 2 HCl → CdCl2 + H2S. When solutions of sulfide containing dispersed CdS ... Cadmium sulfide is the inorganic compound with the formula CdS. Cadmium sulfide is a green solid. It occurs in nature with ... Zinc sulfide. Mercury sulfide Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 ...https://en.wikipedia.org/wiki/Cadmium_sulfide
The Journal of Toxicological Sciences
Recent evidence from in vitro experiments suggested that sulfide anions (S2-) to yield hydrogen sulfide anions (HS-) under ... Protective effects of hydrogen sulfide anions against acetaminophen-induced hepatotoxicity in mice ...https://www.jstage.jst.go.jp/browse/jts/40/0/_contents/-char/en
Sensors | Free Full-Text | Gyroscope Pivot Bearing Dimension and Surface Defect Detection
Potentiometric Electronic Tongue to Resolve Mixtures of Sulfide and Perchlorate Anions. Previous Article in Special Issue. ...https://www.mdpi.com/1424-8220/11/3/3227
CCCBDB Compare core correlation versus no core correlation on bond lengths
dilithium sulfide. H2S. Hydrogen sulfide. H2S-. Hydrogen sulfide anion. ...https://cccbdb.nist.gov/corebond1x.asp
Pyrite - Wikipedia
Despite its name a chalcopyrite does not contain dianion pairs, but single S2− sulfide anions. Pyrite usually forms cuboid ... Synthetic iron sulfide was used with copper sulfide to create the photovoltaic material. Pyrite is used to make marcasite ... Marcasite also possesses homoatomic anion pairs, but the arrangement of the metal and diatomic anions is different from that of ... The mineral pyrite, or iron pyrite, also known as fool's gold, is an iron sulfide with the chemical formula Fe S2 (Iron(II) ...https://en.wikipedia.org/wiki/Pyrite
Chalcopyrite - Wikipedia
In contrast to the pyrite structure chalcopyrite has single S2− sulfide anions rather than disulfide pairs. Another difference ... formed from an immiscible sulfide liquid in sulfide-saturated ultramafic lavas. In this environment chalcopyrite is formed by a ... Natural chalcopyrite has no solid solution series with any other sulfide minerals. There is limited substitution of Zn with Cu ... Chalcopyrite ( /ˌkælkəˈpaɪraɪt, -koʊ-/ KAL-ko-PY-ryt) is a copper iron sulfide mineral that crystallizes in the tetragonal ...https://en.wikipedia.org/wiki/Chalcopyrite
Sensors | Free Full-Text | Sulfide Species Optical Monitoring by a Miniaturized Silicon Photomultiplier
In this context, sulfide anion species S2− and HS− are particularly relevant since they can cause acute and chronic toxicity ... More specifically, all sulfide species (H2S, HS− and S2−) in water samples are detected by the fluorescence signal emitted upon ... It has been proven that the system herein proposed is able to measure sulfide concentration in a linear range from 0-10 mg L−1 ... In this study, a new strategy for fast and sensitive optical detection of sulfide species in water samples is described. The ...http://www.mdpi.com/1424-8220/18/3/727
La Doping of CdS for Enhanced CdS/CdSe Quantum Dot Cosensitized Solar Cells
... and dried with N2 and then dipped into sulfide anion solution for 5 min, rinsed again with methanol, and dried with N2. ... Specifically, the anion source was prepared by dissolving Na2SO3 (0.12 M), Se (0.06 M), and a little permutite in deionized ... The TiO2/CdS : La photoanode was successively immersed in metal cation (Cd2+) and anion (Se2+) solutions, then rinsed with ... Na2S (0.1 M) was dissolved in methanol as anion source. The FTO glass electrode was precoated with transparent active TiO2 ...https://www.hindawi.com/journals/jchem/2015/710140/
They are more likely to bind to soft bases, which are typically large anions such as sulfide or selenide. ... Some prevalent minerals of soft metals are galena (lead sulfide, PbS2) and cinnabar (mercury sulfide, HgS). Sulfides are the ... In MO theory, it has been shown that interactions between hard anions and cations are characterized by large HOMO-LUMO ... iron sulfide, FeS). Molybdenum(VI) can be found as powellite (calcium molybdenum oxide, CaMoO4), but the most commonly mined ...http://employees.csbsju.edu/cschaller/Reactivity/coordchem/coordchem%20hsab.htm
Minerals facts, information, pictures | Encyclopedia.com articles about Minerals
Pyrite (FeS2) is a mineral that contains a sulfide ion as its anion. Gypsum [CaSO4-2(H2O)] contains the polyatomic anion known ... Metals tend to form cations and bond with nonmetals that have formed anions. The bond between anions and cations is known as an ... SULFIDES AND HALIDES.. Most important ores (a rock or mineral possessing economic value)-copper, lead, and silver-belong to the ... Whereas the sulfides fit the common notion of a mineral as a hard substance, halides, which are typically soft and transparent ...https://www.encyclopedia.com/earth-and-environment/geology-and-oceanography/geology-and-oceanography/minerals
Hydrogen sulfide: Facts, Discussion Forum, and Encyclopedia Article
Sulfide. A sulfide is an anion of sulfur in its lowest oxidation state of 2-. Sulfide is also a slightly archaic term for ... These metal sulfides, such as ferrous sulfide. Iron(II) sulfide. Iron sulfide or ferrous sulfide is a chemical compound with ... Iron(II) sulfide. Iron sulfide or ferrous sulfide is a chemical compound with the formula . In practice, iron sulfides are ... Powdered iron sulfide is pyrophoric Iron(II) sulfide or ferrous sulfide (Br.E. sulphide) is a chemical compound with the ...http://www.absoluteastronomy.com/topics/Hydrogen_sulfide
A glassy carbon electrode modified with nitrogen-doped reduced graphene oxide and melamine for ultra-sensitive voltammetric...
... ion and sulfide anion in aqueous media and its imaging in live cells. Sensor Actuat B-Chem 224:298-306CrossRefGoogle Scholar ...https://rd.springer.com/article/10.1007%2Fs00604-018-2998-9
Patent US6719745 - Water purification pack - Google Patents
Common anions include chloride (Cl−) and sulfides (S2−). The resin bed 32 additionally retains some endotoxins that escape the ... The anion exchange resins exchange hydroxy ions for any anions present in an aqueous solution. ... As previously noted, the resin bed 32 preferably comprises a mixed bed of anion- and cation-exchangers. Thus, the mixed bed 32 ... The resin bed 32 more preferably comprises a mixture of pharmaceutical grade resins with strong anion exchanger (cation- ...http://www.google.ca/patents/US6719745
2016 ??? 3
... cation and anion sublattices, sulfides with Tl and Ag, cation/anion stoichiometry. ?????? : 549-557. ???????? ,, ... large Cs and Tl cations in sulfides, F sublattices, PbS structural type, "two-dimensional" orderings of atomic positions. ...http://sibran.ru/journals/issue.php?ID=167903