Properties: White or colorless, smooth crystals or powder, soluble in water, alcohol and glycerin.
Specifications:
|
Item
|
Data
|
||
|
Grade A
|
Grade B
|
Qualified
|
|
|
(H3BO3)% Content ≥
|
99.6-100.8
|
99.4-100.8
|
99.0
|
|
Matters insoluble in water % ≤
|
0.01
|
0.04
|
0.06
|
|
Na2SO4 % ≤
|
0.10
|
0.20
|
0.30
|
|
Chloride(Cl)% ≤
|
0.05
|
0.10
|
0.15
|
|
Iron(Fe)% content ≤
|
0.002
|
0.003
|
0.005
|
|
NH3% ≤
|
0.30
|
0.50
|
0.70
|
|
Heavy metals (Pb)% ≤
|
0.001
|
--
|
--
|
Uses: It is chemical used for making ceramics, glazes, cements, wicks, food preservatives, special glasses; also for leather dressing compounds for preparation of hides prior to tanning; artificial precious stones; as flux in metallurgical industry, fire-proofing compositions and linings for safes; also for pigments; enamel paints, paper glazes, cosmetics, soaps, textiles, medicines, etc.
Packing: 25kg/bag, 22MT/20FCL.