Sodium Hydroxide → Hypophosphoric acid, calcium salt

HRID 1701827Notes

Reaction equation

HRID 1701827 reaction equation
[P].[OH-].[Na+:3].[OH-].[Ca+2:5].[OH-].[P:7]([O-:10])([O-:9])[O-:8]>>[P:7]([O-:10])([O-:9])[O-:8].[Ca+2:5].[P:7]([O-:10])([O-:9])[O-:8].[Ca+2:5].[Ca+2:5].[PH2:7]([O-:9])=[O:8].[Na+:3]

Participants

6

Reactant 4

HCID 14798Sodium HydroxideHCID 107908PhosphiteHCID 5462309PhosphorusHCID 6093208Calcium Hydroxide

Product 2

HCID 156346Hypophosphoric acid, calcium saltHCID 178527019HCID 178527019, compound

Procedure

A method for producing sodium hypophosphite by reacting elemental phosphorus with aqueous sodium hydroxide in the presence of a sufficient excess of solid calcium hydroxide to convert substantially all of the phosphite ions formed in the reaction to insoluble calcium phosphite whereby a solution of sodium hypophosphite is formed in which excess calcium ions remain in solution as calcium hydroxide and calcium hypophosphite, wherein the improvement comprises:

Sources & evidence

ORD record
ord-cfd760da6daf49678f5618c24cea8b8c
Source dataset
uspto-grants-1983_04
Patent number
US04379132

Reaction notes

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