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Chromium(II) chloride describes inorganic compounds with the formula Cr Cl 2 (H 2 O) n. The anhydrous solid is white when pure, however commercial samples are often grey or green; it is hygroscopic and readily dissolves in water to give bright blue air-sensitive solutions of the tetrahydrate Cr(H 2 O) 4 Cl 2 .
Infobox references. Chromium (III) chloride (also called chromic chloride) is an inorganic chemical compound with the chemical formula Cr Cl 3. It forms several hydrates with the formula CrCl3·nH2O, among which are hydrates where n can be 5 (chromium (III) chloride pentahydrate CrCl3·5H2O) or 6 (chromium (III) chloride hexahydrate CrCl3·6H2O).
Chromium (III) Anhydrous chromium (III) chloride (CrCl 3) A large number of chromium (III) compounds are known, such as chromium (III) nitrate, chromium (III) acetate, and chromium (III) oxide. [ 8 ] Chromium (III) can be obtained by dissolving elemental chromium in acids like hydrochloric acid or sulfuric acid, but it can also be formed ...
Hydrated chromium (III) sulfate, Cr 2 (SO 4) 3 ·15 (H 2 O), (CAS #10031-37-5) is a green solid that also readily dissolves in water. It is obtained by heating the 18-hydrate material above 70 °C. Further heating yields the anhydrous sulfate. A variety of other chromium (III) sulfates are known, but also contain hydroxide or oxide ligands.
The following chart shows the solubility of various ionic compounds in water at 1 atm pressure and room temperature (approx. 25 °C, 298.15 K). "Soluble" means the ionic compound doesn't precipitate, while "slightly soluble" and "insoluble" mean that a solid will precipitate; "slightly soluble" compounds like calcium sulfate may require heat to ...
The term immediately dangerous to life or health (IDLH) is defined by the US National Institute for Occupational Safety and Health (NIOSH) as exposure to airborne contaminants that is "likely to cause death or immediate or delayed permanent adverse health effects or prevent escape from such an environment."
Lignosulfonates (LS) are water-soluble anionic polyelectrolyte polymers: they are byproducts from the production of wood pulp using sulfite pulping. [1] Most delignification in sulfite pulping involves acidic cleavage of ether bonds, which connect many of the constituents of lignin. [2] Sulfonated lignin (SL) refers to other forms of lignin by ...
Chromium deficiency is described as the consequence of an insufficient dietary intake of the mineral chromium. Chromium was first proposed as an essential element for normal glucose metabolism in 1959, [1] but its biological function has not been identified. [2] Cases of deficiency were described in people who received all of their nutrition ...
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