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Sodium carbonate is also used as a relatively strong base in various fields. As a common alkali, it is preferred in many chemical processes because it is cheaper than NaOH and far safer to handle. Its mildness especially recommends its use in domestic applications. For example, it is used as a pH regulator to maintain stable alkaline conditions necessary for the action of the majority of photographic film developing agents. For example, it is a common additive in swimming pools and aquarium water to maintain a desired pH and carbonate hardness (KH). In dyeing with fiber-reactive dyes, sodium carbonate (often under a name such as soda ash fixative or soda ash activator) is used to ensure proper chemical bonding of the dye with cellulose (plant) fibers, typically before dyeing (for tie dyes), mixed with the dye (for dye painting), or after dyeing (for immersion dyeing). Sodium bicarbonate (NaHCO3) or baking soda, also a component in fire extinguishers, is often generated from sodium carbonate. ...
Methods of treating a carbonate formation are provided. The methods include introducing a nanoparticle gel system into the carbonate formation at a rate and pressure sufficient to create or enhance at least one fracture in the carbonate formation. The nanoparticle gel system includes a gelling agent, a nanoparticle-size clay, and a proppant. The methods further include allowing a portion of the proppant to deposit in the at least one fracture, pumping an acidic fluid into the carbonate formation, and allowing a portion of the acidic fluid to at least partially reduce a viscosity of the nanoparticle gel system and to react with the carbonate formation.
Sodium carbonate peroxide breaks down into sodium carbonate and hydrogen peroxide. The hydrogen peroxide acts as a bleach, and as an anti-microbial agent. The high alkalinity of the sodium carbonate boosts the bleaching effect of hydrogen peroxide. ...
SODIUM CARBONATE, MONOHYDRATE 5968-11-6 NMR spectrum, SODIUM CARBONATE, MONOHYDRATE H-NMR spectral analysis, SODIUM CARBONATE, MONOHYDRATE C-NMR spectral analysis ect.
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Anhydrous sodium carbonate is the waterless crystalline form of sodium carbonate, the sodium salt of carbonic acid. Its chemical formula is Na2CO3, and its molar mass is 105.988 grams per mole. Its...
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Seaweed ashes were an early source of sodium carbonate, which gave it the name soda ash. Pure sodium carbonate is a white, odorless powder and is one of the fundamental industrial chemicals.
Sodium carbonate is not only used by industry but is also used by consumers. It may be used directly in solutions of sodium carbonate for soaking of clothes, dishwashing, floor washing and for degreasing operations but it is also present in a large number of consumer products like cosmetics, soaps, scouring powders, soaking and washing powders.. ...
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Sodium carbonate is a sodium salt of carbonic acid. It usually comes in the form of a white crystalline powder. It can be extracted from the ashes of many plants, which is why it is also known as soda ash, and can be synthetically produced in a process involving salt brine from ocean water and limestone. | eBay!
sodium carbonate: used topically for dermatitides, mouthwash, vaginal douche; veterinary use as emergency emetic; RN given refers to carbonic acid, di-Na salt; structure
2013 U.S. Sodium carbonate (soda ash) (58 percent Na2O) materials used by the Soap & Cleaning Products Mfg. Industry-Materials & Manufacturing Report The 2013 U.S. - Market research report and industry analysis - 7529584
... or Soda Ash is an antacid and absorbs water from the air. It is often used in permanent wave solutions, shampoos, soaps, mouthwashes, and bath salts. Can be irritating to those with hypersensitive skin.
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An economical method of lactulose production from cheese whey was developed using sodium carbonate (Na2CO3). Three parameters such as temperature, reaction time, and Na2CO3 concentration were identified as experimental factors, and yield was selected as a response parameter. The experimental factors were optimised employing Response Surface Methodology (RSM). Maximum yield of 29.6% was obtained at reaction time of 20.41 min, Na2CO3 of 0.51% at 90 °C. To overcome this limited lactulose yield, due to the conversion of lactulose to galactose, fed batch system was applied using dried cheese whey as lactose source. By this system, limit was broken, and 15.8 g/L of lactulose is produced in hour.
Sodium carbonate is used in detergent formulas as a water softener, to lock up calcium and magnesium from the water. Calcium and magnesium would otherwise combine with the soap or detergents and form an insoluble scum that would stick to the clothes and the washing machine. ...
Sodium carbonate, or washing soda, is a natural disinfectant. Use it to clean a variety of surfaces, from kitchen counters to toilet bowls. Although it should not be consumed in great amounts, washing soda is a common ingredient in many foods, serving as a neutralizer and thickener.
Sodium carbonate is more commonly known as washing soda. Like the similar-sounding compound sodium bicarbonate-baking soda-its basic, and...
Harper, J.P (1936). Antipov, Evgeny; Bismayer, Ulrich; Huppertz, Hubert; Petrícek, Václav; Pöttgen, Rainer; Schmahl, Wolfgang; Tiekink, E.R.T.; Zou, Xiaodong, eds. "Crystal Structure of Sodium Carbonate Monohydrate, Na2CO3. H2O". Zeitschrift für Kristallographie - Crystalline Materials. De Gruyter. 95 (1): 266-273. doi:10.1524/zkri.1936.95.1.266. ISSN 2196-7105. Retrieved 2014-07-25 ...
Instead of looking in the laundry aisle, wander over to the pool supply store (or hardware store) and pick up some pH UP - 100% sodium carbonate, no fragrances or other additives ...
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A bis(cyclic carbonate) was obtained via glycidylation of lignin-based bisphenol followed by cycloaddition with CO2. Further polyaddition between the bis(cyclic carbonate) and diamines led to the synthesis of polyurethanes. The structure and thermal properties of these polyurethane materials were elucidated
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TY - JOUR. T1 - Oxidation of guanine by carbonate radicals derived from photolysis of carbonatotetramminecobalt(III) complexes and the pH dependence of intrastrand DNA cross-links mediated by guanine radical reactions. AU - Crean, Conor. AU - Lee, Young Ae. AU - Yun, Byeong Hwa. AU - Geacintov, Nicholas. AU - Shafirovich, Vladimir. PY - 2008/8/12. Y1 - 2008/8/12. N2 - The carbonate radical anion CO3•- is a decomposition product of nitrosoperoxycarbonate derived from the combination of carbon dioxide and peroxynitrite, an important biological by product of the inflammatory response. The selective oxidation of guanine in DNA by CO3• radicals is known to yield spiroiminodihydantoin (Sp) and guanidinohydantoin (Gh) products, and also a novel intrastrand cross-linked product: 5′-d(CCATCG*CT*ACC), featuring a linkage between guanine C8 (G*) and thymine N3 (T*) atoms in the oligonucleotide (Crean et al., Nucleic Acids Res. 2008, 36, 742-755). Involvement of the T-N3 (pKa of N3-H is 9.67) suggests ...
Ceria based catalysts are very effective for the synthesis of cyclic carbonate such as ethylene carbonate (EC) and propylene carbonate (PC) by the reaction of CO2 with ethylene glycol and propylene glycol. In these reactions, polycarbonate and ethers (diethylene glycol and dipropylene glycol) were not detect
Koeve, Wolfgang; Oschlies, Andreas (2014): Potential impact of DOM accumulation on fCO2 and carbonate ion computations in ocean acidification experiments. PANGAEA, https://doi.org/10.1594/PANGAEA.829379, Supplement to: Koeve, W; Oschlies, A (2012): Potential impact of DOM accumulation on fCO2 and carbonate ion computations in ocean acidification experiments. Biogeosciences, 9(10), 3787-3798, https://doi.org/10.5194/bg-9-3787-2012
Apolipoprotein B-100 (apoB-100) appears in three forms in the endoplasmic reticulum of Hep G2 cells: (1) tightly bound to the membrane, ie, not extractable by sodium carbonate. This form is glycosylated but protease sensitive when present in intact microsomes, suggesting that it is only partially translocated to the microsomal lumen; (2) extractable by sodium carbonate and present on low-density lipoprotein-very-low-density lipoprotein (LDL-VLDL)-like particles. This form is glycosylated and secreted into the medium; and (3) extractable by sodium carbonate but having a higher density than the LDL-VLDL-like particles. This form, referred to as Fraction I, is glycosylated and protected against proteases when present in intact microsomal vesicles, indicating that it is completely translocated to the luminal side of the microsomal membrane. Fraction I is not secreted into the medium, but it disappears with time from the cell, suggesting that it is degraded. Oleic acid induced a 2.7-fold increase in ...
これ等の方法は、いずれも特定の薬剤を被覆することによって、洗剤成分との接触を避け、過炭酸ナトリウムを安定化する方法であるが、これ等従来の方法では、高湿条件での保存時や洗剤配合時の安定化効果がいずれも不充分であり、実用上到底満足し得るものではない。 The method of this like, by any coating the particular drug, avoid contact with detergent ingredients, is a method for stabilizing sodium percarbonate, in which like conventional methods, storage at high humidity conditions stabilizing effect during time and detergent formulations are insufficient both, do not be practically far from satisfactory. (問題を解決するための手段) ...
HTF Market Intelligence released a new research report of 110 pages on title Global Sodium Percarbonate Market Research Report 2017 with detailed analysi
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GRECIAN MAGNESITEs natural magnesium carbonate products (also called crude or raw Magnesite) are of cryptocrystalline form exhibiting extremely low amounts of Fe and Mn dissolved in their structure and are white in color. Furthermore, due to their cryptocrystalline form, our magnesium carbonate products are more porous with very small sized crystals of a few microns leading to products with higher specific surface area (SSA) and reactivity.. The main advantages of cryptocrystalline Magnesite versus Macrocrystalline Magnesite (more than 80% of global natural MgO production comes from Macrocrystalline Magnesite deposits i.e. China, Russia, N. Korea, Spain, Austria, Brazil) are the higher achievable MgO activity, the controlled microstructure, the higher mechanical strength and the higher beneficiation efficiency in terms of Ca, Fe impurities (mainly present as mechanical admixtures and not dissolved in the magnesite structure).. By far the major quantity of Grecian Magnesites magnesium carbonate ...
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Silicate weathering is a primary control on the carbon cycle and therefore long-term climate. Tracing silicate weathering in the geological record has been a challenge for decades, with a number of proxies proposed and their limits determined. Recently lithium isotopes in marine carbonates have emerged as a potential tracer. Bulk carbonates are increasingly being used as a Li isotope archive, though with limited tests thus far of the robustness of this approach in the modern ocean. As the bulk composition of marine pelagic carbonates has changed through time and geographically, assessing the fidelity of bulk carbonate as proxy carrier is fundamental. To address the impact of compositional variability in bulk carbonate on Li isotopes, we examine 27 Bahamian aragonitic bulk carbonates and 16 Atlantic largely calcitic core-top sediment samples. Two core-tops only have trace (,10 %) carbonate, and are analysed to test whether carbonates in such sections are still a viable archive. We selectively ...
a. Metallurgical process for dissolution of metal values by means of a sodium carbonate solution. Used on high-lime ores. Ballard b. Dissolution of uranium with an aqueous solution of sodium carbonate in the presence of sufficient oxygen to render uranium hexavalent. Pryor, 1 c. Tungsten autoclave dissolution. Source: Dictionary of Mining, Mineral, and Related Terms
The Mn-0-Mn bond angle (120.7) is considerably smaller than that measured for (amorphous?) Mn207 fiims.[61However, it is possible that the two findings are not in contradiction. In the crystal, the small angle leads to the intramolecular formation of a nido-octahedral arrangement for the bridging and the four terminal 0 atoms (cf. Fig. 2b), which is augmented to form an octahedron by a further 0 atom from a n adjacent molecule. This indicates that the Mn,O, molecules are packed in a way to yield a close-packed arrangement of all 0 atoms. Indeed, the Mn,O, structure can be described in terms of an fcc lattice of the 0 atoms; the actual positions of the 0 atoms deviate, on the average, by 2 4 f 5 pm (contraction of the neighboring tetrahedral voids occupied by Mn) from the ideal lattice positions. The formation of a close-packed structure explains the unusual increase in the density of Mn,O, upon crystallization. Comparison of the crystal structures of Mn207,Tc207, and Re20, reveals interesting ...
Stains are not welcome whether on cloth or skin. When you get a stain in a treasured quilt, it is important to try to figure what caused the stain (blood, coffee, grease, etc). Some stains are better off left alone. Keep in mind you may damage your item irrevocably. It is recommended that products containing the ingredient Sodium Percarbonate be used. This is a white, free flowing granular chemical used in the formulation of laundry products and many other cleaning products. Sodium Percarbonate consists mainly of hydrogen peroxide and soda, and functions as a bleaching agent, alkali provider and water softener at the same time. It contains a high percentage of active oxygen which provides an excellent washing and bleaching effect. It is environmentally compatible as it will break down into water, oxygen, and soda ash. Unlike chlorine based bleaches, sodium percarbonate is non-toxic and biodegradable. For a complete guide see: Stain Removal Guidelines for Textiles and Other Items by Kris Driessen ...