| Place of Origin: | Tianjin in China |
|---|---|
| Packaging Details: | 25kg plastic woven bag, 22MT/20'FCL |
Specifications
Detailed Product Description
English Name: Boric Acid (Boracic acid, basilit b, borofax, boron trihydroxide)
Molecular Formula: H3BO3
Molecular Weight: 61.83
CAS No.: 10043-35-3
EC Number: 233-139-2
Melting point: 169deg.C(336.20°F)
Specific Gravity: 1.44(water=1)
Solubility in water: 4.9g/100g @20°C
PH: 3.6-4(4%aq.soin)
Appearance: Colourless or white odourless crystalline solid
Properties: white crystalline powder. There are creamy feel, no smell, soluble in water, ethanol, glycerol, ether, and essential oils, the aqueous solution was slightly acidic.
|
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 |
-- |
-- |
Application: glass mabufacturing, ceramics, welding, leather industry, wood-preservative, pharmacy, raw material of other boron compounds.
Packing: 25kg plastic woven bag, 22MT/20'FCL
