Pharmaceutical excipients
Sodium tetraborate, decahydrate

Product name

Sodium tetraborate, decahydrate

Specification

Pharmaceutical grade (USP,BP,EP,CP)

Molecular formula

Na2B4O7·10H2O

CAS

1303-96-4

H.S. CODE

2840190000

Molecular weight

381.37

Appearance

Colorless transparent crystal

Package

25KG Woven bags or fiber drums



Property

     Borax is also called coarse borax in chemical composition, it is containing 10 water molecule four boric acid sodium. Its crystal to the plate or columnar crystal together form the brilliant clumps, granular, porous soil block etc, color is white with ash or with light color attune of yellow, blue, green, etc, with vitreous burnish.

Application:

    Borax has many USES our familiar as disinfectant, fresh preservative, soft agent, washing eyes water and soap additives, ceramic glaze materials and glass raw materials, etc., in industrial production, borax also plays an important role.

Test standard

Test items

Specification

BP2015

USP35

CP2015

Appearance

Colorless transparent crystal

Colorless transparent crystal

Colorless transparent crystal

Assay

99.0~103.0%

99.0~105.0%

99.0~105.0%

Appearance of solution

Conform

 

Conform

pH

9.0~9.6

 

9.0~9.6

Sulfate

0.005%

 

0.04%

Carbonate and bicarbonate

 

Conform

Conform

Ammonium

0.001%

 

0.001%

Iron

 

 

0.003%

Calcium

0.01%

 

0.01%

Magnesium

 

 

0.01%

Arsenic

0.0005%

 

0.0005%

Heavy metals

0.0025%

0.002%

0.001%

Storage

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


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