Phosphorous acid|H3PO3|13598-36-2 - TongVo Chemicals
As supplier of phosphoric acids, we can supply high quality phosphorous acid (H3PO3,CAS:13598-36-2) for technical and fertilizer applications.

Phosphorous acid

As manufacturer and supplier of phosphoric acids, phosphates and polyphosphates, we can supply high quality phosphorous acid (H3PO3) for technical and fertilizer applications.

Phosphorous acid

Title: Phosphorous acid

Synonyms: Orthophosphorus acid
Formula: H3PO3, Molecular: 82
CAS #: 13598-36-2, EC #: 237-066-7

Standard(s): HG/T2520-2006

Grade: Technical grade

Phosphorous acid

Specifications

Specifications Technical grade High purity
Packing: 35Kgs/drum, 330Kgs/drum, in PP drums or IBCs, or as customer's requirements.
Assay (H3PO4) % 98.5 min 99.0 min
Appearance White crystal White crystal
Chloride (Cl) % 0.002 max 0.002 max
Sulphate (SO4) % 0.008 max 0.006 max
Iron (Fe) % 0.002 max 0.001 max
Arsenic (As) % 0.002 0.001 max
Heavy metal (as Pb) % 0.005 max 0.002 max
Cadnium (Cd) % 0.001 max 0.0005 max
Phosphate (as P2O5 ) % 0.2 max 0.2 max
70% solution:
Color (Hazen)

20 max

10 max
FTU 1 max 0.1 max

Properties

Phosphorous acid is colorless crystalline, hygroscopic, deliquescent, cautic. Relative desity: 1.651(@21.2 °C), melting porint: 73.6°C, boiling point: 200°C (decomposed).

Phosphorous acid is soluble in water and alcohol, slowly oxidized to orthophosphoric acid in air and decomposes to orthophosphoric acid and phosphine if heated to 180°C.

Applications

Phosphorous acid can be used as the raw material of phosphate and phosphonate, reductive agent, nylon whitening agent and anti-oxidant, stablizer for plastics, organo-phosphorus pesticide intermediate and chemical reagent.

Phosphorous acid can also be used as fertilizer additive in agroculture industry.

Storage & handling

Keep in cool dry place.

Air transportation: Restricted.

Harzards Identification & Classifications: Class 8.

Shelf life

12 months.

Related products

Support: Phosphorous acid technical datasheet (TDS), Phosphorous acid material safety datasheet (MSDS).

Remarks:TongVo Chemicals can supply high quality phosphorous acid (CAS:13598-36-2) for technical and fertilizer applications.

Add: 309 North Huancheng Road,

Hangzhou 310006, China

Tel: +86-571-85064323 Fax: 87908611

e-mail: sales@tongvo.cn

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