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Bulk Selling High Quality Phosphorous Acid CAS 13598-36-2 Fine Chemical
 
Model NO.  : Phosphorous Acid

Chloride (as Cl)  : <0.01%

Phosphate : <0.20%

Transport Package : 25kg Woven Bag

Specification : H3O3P 99%

Trademark : Andu

Model NO.  : Phosphorous Acid
Chloride (as Cl)  : <0.01%
Phosphate : <0.20%
Transport Package : 25kg Woven Bag
Specification : H3O3P 99%
Trademark : Andu


Appearance and properties: White crystalline solid
Density: 1.651 g/mL at 25 °C(lit.)
Melting point: 73 °C
Boiling point: 200 °C
Flash point: 200°C
Water solubility: SOLUBLE
Acidity coefficient (pKa): pK1 1.29; pK2 6.74(at 25oC)
Storage conditions/storage methods: The warehouse is ventilated and dry at low temperature, and stored separately from H pore-forming agent and alkali.

Specification

Inspection items

The degree of the products

Best Grade
Products

Best Grade
Products

First grade
products

Main contents(counted with H3PO3)

99

98.5

98

Iron(counted with Fe)

0.001

0.0015

0.0020

Chloride(counted with C1)

0.008

0.01

0.01

Sulfate(counted with SO4)

0.001

0.002

0.002

Phosphate(counted with SO4)

0.1

0.2

0.2

Complexion

White crystal

White crystal

White crystal

Water solution experiments

White crystal

Clear and achromatic

Clear and achromatic


Uses: Used as reducing agent, nylon whitening agent, also used as phosphite raw materials, pesticide intermediates.

 
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