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Orthophosphorus acid

CAS No.
10294-56-1
Chemical Name:
Orthophosphorus acid
Synonyms
Phosphorous acid;Phosphorous acid 50% aqueous solution;Phosphorou acid;Orthophosphorus acid;Orthophosphorus acid ISO 9001:2015 REACH
CBNumber:
CB12131082
Molecular Formula:
H3O3P
Lewis structure
h3po4_2 lewis structure
Molecular Weight:
82
MDL Number:
MOL File:
10294-56-1.mol
Last updated:2023-05-04 15:16:29

Orthophosphorus acid Properties

pka 2.22±0.10(Predicted)
CAS DataBase Reference 10294-56-1
FDA UNII 35V6A8JW8E
NIST Chemistry Reference H3PO3(10294-56-1)
EPA Substance Registry System Phosphorous acid (10294-56-1)

SAFETY

Risk and Safety Statements

Symbol(GHS)  GHS hazard pictogramsGHS hazard pictograms
GHS07,GHS05
Signal word  Danger
Hazard statements  H302-H314
Precautionary statements  P264-P270-P301+P312-P330-P501-P260-P264-P280-P301+P330+P331-P303+P361+P353-P363-P304+P340-P310-P321-P305+P351+P338-P405-P501
Hazard Codes  Xn,C
Risk Statements  22-35
Safety Statements  1/2-26-36/37/39-45
RIDADR  UN 2834
NFPA 704
0
3 1

Orthophosphorus acid price

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Usbiological 462537 Phosphorous Acid 10294-56-1 50g $326 2021-12-16 Buy
Product number Packaging Price Buy
462537 50g $326 Buy

Orthophosphorus acid Chemical Properties,Uses,Production

Uses

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.

Orthophosphorus acid Preparation Products And Raw materials

Global( 155)Suppliers
Supplier Tel Email Country ProdList Advantage
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SIMAGCHEM CORP
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Henan Alfa Chemical Co., Ltd
+8618339805032 alfa4@alfachem.cn China 12755 58

View Lastest Price from Orthophosphorus acid manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
Orthophosphorus acid pictures 2022-10-19 Orthophosphorus acid
10294-56-1
US $6.90 / kg 1kg 99% 20 tons Hebei Duling International Trade Co. LTD
Phosphorous acid pictures 2019-08-05 Phosphorous acid
10294-56-1
US $7.00 / KG 1KG 99% 100kg Career Henan Chemical Co
Orthophosphorus acid Orthophosphorus acid ISO 9001:2015 REACH Phosphorous acid Phosphorous acid 50% aqueous solution Phosphorou acid 10294-56-1