Orthophosphorus acid
Synonym(s):Phosphonic acid
- CAS NO.：10294-56-1
- Empirical Formula: H3O3P
- Molecular Weight: 82
- EINECS: 233-663-1
- SAFETY DATA SHEET (SDS)
- Update Date: 2023-05-04 15:16:29
What is Orthophosphorus acid?
The Uses of Orthophosphorus acid
Phosphorous acid is a reducer in chemical reactions and a raw material in the making of phosphorous acid salts. A plant defoliant.
Definition
A white crystalline solid. It is a monobasic acid forming the anion H2PO2- in water. The sodium salt, and hence the acid, can be prepared by heating yellow phosphorus with sodium hydroxide solution. The free acid and its salts are powerful reducing agents.
Properties of Orthophosphorus acid
| pka | 2.22±0.10(Predicted) |
| CAS DataBase Reference | 10294-56-1 |
| NIST Chemistry Reference | H3PO3(10294-56-1) |
| EPA Substance Registry System | Phosphorous acid (10294-56-1) |
Safety information for Orthophosphorus acid
Computed Descriptors for Orthophosphorus acid
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