Inorganic Chemicals

Phosphorous acid

Phosphorous acid
Molecular formula: H3PO3
Molecular weight: 82

Physiochemical properties:
Specific gravity: 1.651(21.2°C)

Melting point: 73.6°C

Boiling point: 200°C(decomposed)
Properties: colorless crystal, easily soluble in water, soluble in alcohol.

Specifications:

Item Premium grade Grade I Grade II Grade III Solution
Assay %, ≥ 99% 99% 99% 98.5% 70%
Chloride (Cl-) %,≤ 0.001 0.001 0.002 0.02 0.001
Iron (Fe) %, ≤ 0.0005 0.001 0.002 0.005 0.0005
Sulphate (SO4) %, ≤ 0.001 0.008 0.008 0.008 0.001
Phosphate (PO4) %, ≤ 0.1 0.2 0.2 0.2 0.1
Smell odorless odorless odorless odorless odorless
Appearance Pure white crystal white crystal white crystal white crystal Clear colorless
liquid

Use:

Used as reducing agent, nylon whitener, plastic thermometer, synthetic fiber in plastic industry; as materials for producing weedicide, bactericide and water stabilizer in pesticide industry.

Packing:
In 1000Kg、500Kg flexible container or 25kg paper-plastic compound bag.

Transportation:
It should be covered in transportation. Avoid drench, moisture.

Storage:
Stored in cool and dry place.

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About Jorry

Sales Director of Henan Harvest Chem Co.,Ltd

Discussion

2 thoughts on “Phosphorous acid

  1. what is the sodium content that can be present in food grade phosphoric acid

    Posted by sheela nair | August 27, 2010, 5:14 pm

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Contact me:

adminMr. Jorry Zhang
Current position: Sales manager of Henan Harvest Chem Co.,Ltd
Website:  www.hnharvest.com
Cell: +86-15803826779
Tel: +86-371-86058571
Fax: +86-371-65350610
Email: Jorry@hnharvest.com
Welcome to send emails to me  for more information!

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