Borax (Sodium borate) Na2B4O7

We are specializing in providing our customers with chemicals raw materials, such as sodium borate, boric acid, borax anhydrous, borax pentahydrate, borax decahydrate etc. The informations of borax (hs: 2528100000) are as below:

Specification：
Borax Anhydrous :
Item Test result
Na2B4O7 （%） ≥99．5
Na2O （%） ≥ 22
B2o3 （%） ≥ 48
Na2CO3 （%） ≤0.04
So4 （%） ≤0.05
Cl （%） ≤0.02
water-insoluble （%） ≤0.04
Fe2O3 （%） ≤0.003
Item Test result

Borax pentahydrate:
Item Standard
Content of na2b4o7.5h2o % ≥ 99.9
Naco3 % ≤ 0.05
Sulphate as so4 % ≤ 0.1
Water insoluble matter % ≤ 0.015
Fe % ≤ 0.002
Chloride as Cl % ≤ 0.03

Borax decahydrate:
The inspection items Test results
Sodium Borate 10 Hydrous（Na2B4O7 10h2o）%≥ 99.5
Sodium Carbonate（Na2CO3） %≤ 0.1
lnsoluble matter in water %≤ 0.04
Sodium Sulfate (Na2SO4） %≤ 0.2
Sodium Chloride (NaCl) %≤ 0.03
Sodium Oxide (Na2O） %≥ 16
Boron Oxied（b2o3） %≥ 35
lron (Fe) %≤ 0.002

Properties:
a white, crystalline powder, colourless crystals or crystalline masses, efflorescent, soluble in water, very soluble in boiling water, freely soluble in glycerol.

Application:
Used mainly used for glass and porcelain enamel industry. Industry, it can enhance transparency and heat resistant property. In porcelain enamel products, it can make enamel not easy to fall off and with luster. It also widely used in optic glass, glass fiber, colored metal as jointing agent, cohering agent for jewelry, printing and dyeing detergent, refined gold, cosmetics, pesticide, fertilizer, borax soap, antiseptic, antifreeze, and in pharmaceuticals as disinfectors etc. Its also one of basic raw material for making other boric compound

Packaging:
25kg/bag

Delivery time:
Within 3 weeks after receipt of deposit.

Our market has covered three quarters of countries all over the world, such as the Middle East, Asia, Southeast Asia, Africa, and America. And established a stable long-term partnership with them. If you have any inquiries, please feel free to contact us.