|
Product name |
Boric acid |
|
Specification |
Reagent grade |
|
Molecular formula |
H3BO3 |
|
CAS |
10043-35-3 |
|
H.S. CODE |
2810002000 |
|
Molecular weight |
62 |
|
Appearance |
White crystal powder |
|
Package |
25KG Woven bags or fiber drums |
Property：
Boric acid, for white powder crystallization or three inclined shaft side flake crystallization, have satiny gloss, no odor. Handle Soluble in water, alcohol, glycerin, ethers and oils, aqueous show weakly acidic.
Application:
Widely used for the glass (optical glass, acid glass, heat-resistant glass, insulating material with fiberglass) industry, can improve glass products of heat, transparent performance and improve mechanical strength, shorten dissolve melting time.
Test standard：GB/T 628-2011
|
Test items |
Specification |
|
|
AR grade |
CP grade |
|
|
Appearance |
White crystal powder |
White crystal powder |
|
Assay |
≥99.5% |
≥99.0% |
|
Appearance of solution |
Conform |
Conform |
|
Solubility in ethanol |
Conform |
Conform |
|
Water insoluble |
≤0.005% |
≤0.02% |
|
Methanol not volatiles |
≤0.05% |
≤0.3% |
|
Chloride |
≤0.0005% |
≤0.002% |
|
Sulfate |
≤0.002% |
≤0.01% |
|
Phosphate |
≤0.0005% |
≤0.003% |
|
Arsenic |
≤0.0001% |
≤0.0005% |
|
Calcium |
≤0.002% |
≤0.01% |
|
Iron |
≤0.0005% |
≤0.002% |
|
Lead |
≤0.001% |
≤0.003% |
Storage：
Store in a cool, dry and well ventilated place. Keep away from incompatible substances. Keep container closed.
