Phosphorous acid CAS#13598-36-2

Phosphorous acid, Promotion Season Now in Store and Free Sample for Testing with Factory Price
  • Appearance:White crystal
  • Assay: 99% min
  • Packaging:25kg/plastic woven bag
  • Sample: Available

Quality Control of Phosphonsure

Chemical Structure
Phosphorous acid (3)
Packing of Phosphonsure

Description of Phosphonsure

Phosphorous acid is the compound described by the formula H3PO3. This acid is diprotic (readily ionizes two protons), not triprotic as might be suggested by this formula. Phosphorous acid is an intermediate in the preparation of other phosphorus compounds.

Basic Info of Phosphonsure

Chemical Name

phosphonic acid

Synonyms

rac-Phoenicol;orthophosphorus acid;phosphorus acid;Phosphorous acid;Phoenicol;

CAS No.

13598-36-2

Molecular Formula

H3O3P

Molecular Weight

81.99580

PSA

81.00000

LogP

-0.63930

Safety Info

RTECS

SZ6400000

Hazard Class

8

Safety Statements

S26-S36/37/39-S45

HS Code

2811199090

WGK Germany

1

Packing Group

III

RIDADR

UN 2834

Risk Statements

R22; R35

Hazard Codes

C

Signal Word

Danger

Caution Statement

P280; P305 + P351 + P338; P310

Hazard Declaration

H290; H302; H314

Symbol

GHS05, GHS07

Properties

Appearance & Physical State

white crystalline solid

Density

1.651

Boiling Point

200ºC

Melting Point

73ºC

Flash Point

200ºC

Water Solubility

SOLUBLE

Stability

Stable. Incompatible with strong bases. Hygroscopic.

Storage Condition

0-6ºC

Numbering system
EINECS number237-066-7
RTECS numberSZ6400000
MDL numberMFCD00137258
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What is Phosphonsure?

  • With the progress of science and technology and the development of society, chemical products have invariably permeated our daily lives, in medicine, food, cosmetics, electronics, industry, and other areas, becoming an essential part of our lives. One such product is Phosphonsure which has developed particularly rapidly in recent years. Do you know about Phosphonsure?
  • The official answer: Phosphite is an inorganic compound with the chemical formula H3PO3 and a molecular weight of 82.00.
    It is easily soluble in water and alcohol. It is slowly oxidized to phosphoric acid in the air and decomposed to phosphoric acid and phosphine (highly toxic and explosive) when heated to 180℃. Phosphite is a dibasic acid, its acidity is slightly stronger than phosphoric acid, it has strong reducing properties, easily reducing silver ions (Ag+) to metallic silver (Ag), and can reduce sulfuric acid to sulfur dioxide. It has strong hygroscopicity and deliquescence and is corrosive. Phosphite is mainly used as the reducing agent, nylon whitening agent, also used as raw materials for phosphite, pesticide intermediates, and raw materials for organophosphorus water treatment chemicals.

What’s the application of Phosphonsure?

  • Usedasreducingagent,nylonwhiteningagent,alsousedastherawmaterialofphosphite,pesticideintermediate.Itistherawmaterialforthemanufactureofphosphite,andalsotherawmaterialforthemanufactureofplasticstabilizers(suchasdibasicleadphosphite)andorganophosphoruspesticides.Usedasastabilizerofpolycarbonate.
  • Alsousedasanantioxidantfornylon1010.Usedasachemicalreagent.Watertreatment.Determinationofmercury,gold,silver,andlead,reducingagent,assayiodicacid,copper,andcadmium.Industriallyphosphiteisarawmaterialforthemanufactureofplasticstabilizers.Alsousedinsyntheticfiberandphosphatemanufacturing.

Conclusion

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