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Chemical reagent
Disodium hydrogen phosphate, docecahydrate

Product name

Disodium hydrogen phosphate,docecahydrate

Specification

Reagent grade

Molecular formula

Na2HPO4·12H2O

CAS

10039-32-4

H.S. CODE

2835220000

Molecular weight

358.14

Appearance

White crystal

Package

25KG Woven bags or fiber drums

Property

     Colorless transparent sheet inclined department rhombus crystals, relative density 1.52, in the air, and easily easy to lose five molecules formed seven water gesso item (Na2HPO4. 7H2O). Soluble in water, not soluble in alcohol. Solution a micro alkaline reaction (0.1-1N solution PH about 9.0). In 100 ℃ lost without water gesso into things, 250 when ℃ decomposed into coke sodium.

Application:

    Used for boiler soft agent, fabric, wood and paper paper of flame retardants, glaze medicine and changzhou. Used in the production of detergent, print the detergents and dyeing with salt. In printing and dyeing industries as hydrogen peroxide bleaching stabilizer, rayon packing (enhancement of silk strength and elastic). Is manufacturing focal phosphorus sodium and other raw materials, but also of phosphate monosodium glutamate, erythromycin, penicillin, streptomycin, and sewage production processs of cultivating agent products etc. Also used in electroplating, Rou leather.

Test standardGB/T 1263-2006

Test items

Specification

AR grade

CP grade

Appearance

White crystal

White crystal

Assay

99.0%

98.0%

pH

9.1~9.4

9.1~9.4

Appearance of solution

Conform

Conform

Water insoluble

0.005%

0.01%

Chloride

0.001%

0.003%

Sulfate

0.005%

0.03%

Total nitrogen

0.002%

0.005%

Arsenic

0.0005%

0.002%

Potassium

0.01%

0.05%

Iron

0.0005%

0.001%

Heavy metals

0.0005%

0.001%


Storage

    Store in a cool, dry and well ventilated place. Keep away from incompatible substances. Keep container closed.


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