Hangzhou Ruijiang Chemical Co., Ltd.

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phosphorous acid

Product Details:

Classification	Phosphorous Acid
Molecular formula	H3O3P
Molecular weight	82.00
Appearance	white crystal
Purity	98min
CAS No.	13598-36-2
Place of Origin	China (Mainland)
Brand Name	ruichem

Payment & Shipping Terms:

Packaging Details:	25kgs bags or 50kgs drums
Payment Terms:	L/C,D/A,D/P,T/T

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Detailed Product Description

CAS No: 13598-36-2

EINECS No: 237-066-7

U.N No: 2384

Molecular formula: H3O3P

Molecular weight: 82.00

Hazard class: 8

Packing group: III

PropertiesWhite, very hygroscopic and deliquesce, crystalline mass; garlic-like taste; slowly oxidized by oxygen (air) to H3PO4. Density: at 20 ° C 1.651 g/cm³, soluble in water and alcohol. It has corrosive characteristics.

Quality index:

Item \ Grade	Premium grade (%)	First grade (%)
Assay(as H₃PO₃ )	99.0min	98.0min
Fe (as Fe )	0.0012max	0.005max
chloride(as Cl )	0.01 max	0.01 max
sulfate(as SO₄ )	0.006 max	0.006 max
phosphate(as PO₄ )	0.1 max	0.1 max
appearance	white crystal	white crystal
Aq. solution test (70%)	colorless transparent	colorless transparent without any impurities

Packing: 25kg in plastic woven bag; 50kg in paper drum or metal pail; 1000kg in big bag; Or upon your demand.

Application: Widely used as the raw materials to make phosphorous acid salt, used as the raw materials for making of plastic stabilizator in the plastic industry, used as reducer in chemical reaction, also used in the olefin industry, agricultural chemical industry and so on.

Storage and handlingDo not store together with alkalis (caustic solutions), Store away from oxidizing agents. Keep container tightly sealed. Store in cool, dry conditions in well sealed containers. Store under lock and key and with access restricted to technical experts or their assistants only .