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Holmium(III) oxide, or holmium oxide is a chemical compound of the rare-earth element holmium and oxygen with the formula Ho 2 O 3.Together with dysprosium(III) oxide (Dy 2 O 3), holmium oxide is one of the most powerfully paramagnetic substances known.
A certificate of analysis (COA) is a formal laboratory-prepared document that details the results of (and sometimes the specifications and analytical methods for) one or more laboratory analyses, signed—manually or electronically—by an authorized representative of the entity conducting the analyses. This document gives assurances to the ...
Sodium bisulfite (or sodium bisulphite, sodium hydrogen sulfite) is a chemical mixture with the approximate chemical formula NaHSO 3.Sodium bisulfite is not a real compound, [2] but a mixture of salts that dissolve in water to give solutions composed of sodium and bisulfite ions.
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Locust bean gum occurs as a white to yellow-white powder.It consists chiefly of high-molecular-weight hydrocolloidal polysaccharides, composed of galactose and mannose units combined through glycosidic linkages, which may be described chemically as galactomannan.
Thus, the two substrates of this enzyme are malonyl-CoA and 3,4-dichloroaniline, whereas its two products are CoA and N-(3,4-dichlorophenyl)-malonamate. This enzyme belongs to the family of transferases , specifically those acyltransferases transferring groups other than aminoacyl groups.
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The compound is prepared by the addition of ammonium salts to solutions of vanadate ions, generated by dissolution of V 2 O 5 in basic aqueous solutions, such as hot sodium carbonate.