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BARIUM HYPOPHOSPHITE
- CAS No.
- Chemical Name:BARIUM HYPOPHOSPHITE
- CBNumber:CB3723607
- Molecular Formula:BaH4O4P2
- Formula Weight:267.3
- MOL File:Mol file
BARIUM HYPOPHOSPHITE Property
- FDA UNII DC9518W9VC
- Symbol(GHS)
- Signal word
- Hazard statements
- Precautionary statements
BARIUM HYPOPHOSPHITE Chemical Properties,Usage,Production
-
Description
Barium hypophosphite has the formula, Ba(H2PO2)2,
and the molecular weight of 267.30388 g/mol. This salt
can be prepared by the aqueous reaction of the
carbonate or oxide with H3PO2:
BaO + 2H3PO2 ? Ba(H2PO2)2
The salt is slightly soluble in water (3.62 g/100 ml at 20°C) so that the solution must be evaporated to obtain crystals. This procedure forms barium hypophosphite monohydrate, Ba(H2PO2)2·H2O, whose CAS number is 14871-79-5. Its molecular weight is 285.320 g/mol. It occurs as monoclinic plates with a density of 2.94 g/cm3. It is soluble in water but insoluble in alcohol. Therefore, the addition of alcohol during evaporation serves to hasten the crystallization process from aqueous solution. Heating to about 110°C causes the loss of the water of hydration to form the anhydrate. The anhydrate is soluble in water at about 35 g/100 ml at 20°C but only 30 g/100 ml at 100°C. - Chemical Properties White, crystalline powder; odorless. Soluble in water; insoluble in alcohol.
- Uses Nickel plating.
- Uses The major usage of barium hypophosphite has been as a source of hypophosphorous acid because the addition of H3PO4 to a solution allows the separation of the very insoluble BaSO4. Although this salt is mentioned in a few patents concerning metal surface finishing, electroplating, chemical intermediates and as a source of hypophosphite anions, it is the calcium salt that is preferred since it is lower in cost and easier to use.
BARIUM HYPOPHOSPHITE Preparation Products And Raw materials
Raw materials
Preparation Products
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- Supplier： City Chemicals Corporation
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BARIUM HYPOPHOSPHITERelated Search:
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- BARIUM HYPOPHOSPHITE
