Synonym: Sodium Tetraborate Pentahydrate
Formula: Na₂B₄O₇. 5H₂O

M. W.:  291.3

CAS No.:12179-04-3

H.S.No.:2840.1900

Properties: White powder crystal, specific weight 1.69-1.73, and hardness 2-2.5. It is soluble in water, insoluble in alcohol and the solution indicting weak basify. When heated to 350-400℃, it loses the crystal water and changes into waterless borax. Which features sterilizing. It will do harm to one’s health taking orally.

Items	Pentahydrate
B2O3 %≥	48.6
Boron %≥	15
Sodium Carbonate %≤	0.20
Sodium sulphate %≤	0.01
Matter insoluble in water %≤	0.015
Sodium chloride ≤	0.0067
Iron %≤	0.0025

Uses: An important material for glass, enamel, ceramics, non-ferrous metal, metallurgical industry, It can be used as a micro-element manure and disinfectant in agriculture, and it is also widely used in pharmaceutical industry. Borax is also a basic raw material for boride and high-energy boron hydride fuel.

Packing: 25kgs P.P. bag.