BARIUM HYPOPHOSPHITE

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BARIUM HYPOPHOSPHITE Basic information
Product Name:BARIUM HYPOPHOSPHITE
Synonyms:BARIUM HYPOPHOSPHITE
CAS:
MF:BaH4O4P2
MW:267.3
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Mol File:Mol File
BARIUM HYPOPHOSPHITE Structure
BARIUM HYPOPHOSPHITE Chemical Properties
Safety Information
MSDS Information
BARIUM HYPOPHOSPHITE Usage And Synthesis
DescriptionBarium 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 PropertiesWhite, crystalline powder; odorless. Soluble in water; insoluble in alcohol.
UsesNickel plating.
UsesThe 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
Tag:BARIUM HYPOPHOSPHITE Related Product Information
CALCIUM PHOSPHIDE Magnesium phosphide strontium phosphide beryllium phosphide Strontium Hypophosphite Radium Hypophosphite Beryllium Hypophosphite MAGNESIUM PHOSPHITE BARIUM PHOSPHIDE Radium Phosphite Strontium Phosphite BARIUM PHOSPHITE Radium Phosphide CALCIUM PHOSPHITE Beryllium Phosphite Calcium hypophosphite Magnesium hypophosphite