ChemicalBook Product Catalog Inorganic chemistry Inorganic salts Phosphide And metal phosphates Orthophosphorus acid

Orthophosphorus acid

Orthophosphorus acid Basic information
Product Name:Orthophosphorus acid
Synonyms:Orthophosphorus acid;Orthophosphorus acid ISO 9001：2015 REACH;Phosphorous acid;Phosphorous acid 50% aqueous solution;Phosphorou acid
CAS:10294-56-1
MF:H3O3P
MW:82
EINECS:233-663-1
Product Categories:
Mol File:10294-56-1.mol
Orthophosphorus acid Structure
Orthophosphorus acid Chemical Properties
pka2.22±0.10(Predicted)
CAS DataBase Reference10294-56-1
NIST Chemistry ReferenceH3PO3(10294-56-1)
EPA Substance Registry SystemPhosphorous acid (10294-56-1)
Safety Information
Hazard Codes Xn,C
Risk Statements 22-35
Safety Statements 1/2-26-36/37/39-45
RIDADR UN 2834
MSDS Information
Orthophosphorus acid Usage And Synthesis
UsesPhosphorous acid is a reducer in chemical reactions and a raw material in the making of phosphorous acid salts. A plant defoliant.
DefinitionA 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.
Orthophosphorus acid Preparation Products And Raw materials
Preparation ProductsNERIDRONATE SODIUM HYDRATE-->Risedronic acid-->N,N-DIISOBUTYLETHYLENEDIAMINE
Ammonium bisulfite POTASSIUM SULFITE METHYLENEDIPHOSPHONIC ACID Water treatment disinfectant Hyaluronic acid Ethyl 2-(Chlorosulfonyl)acetate Ascoric Acid Phosphoric acid Folic acid Triphenyl phosphite Sodium hypophosphite monohydrate Phosphonic acid, disodium salt Trimethyl phosphite Diethyl phosphite Phosphorus Dimethyl phosphite Triethyl phosphite Citric acid
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