3-5mm white crystal boric acid flake for E-glass fibers
1,Reputed supplier with good price
2,powder,flakes 1-3mm 3-5mm 8mm etc available
3,fast delivery as buyer's request
ommodity:boric acid
CAS No.: EINECS No.: 233-139-2
Appearance: white crystal
Purity: 95% ,98%,99%, 99.5%,99.9%
MF: H3BO3
Melting point: 169 °C Boiling point: 300 °C
Relative molecular mass: 61.83
1.Usage:
Boric acid is used extensively for the glass industry, in particular E-glass fibers, but also can not be sbstituted borax.
In the enamel, ceramic industry, products used to enhance the gloss and fastness. Can be used for medicine and wood preservation. Fungicides can be done in agriculture, pesticides, and trace element fertilizers. Boric acid is produced diboride matrix material, and its metal welding, leather, precious stones, electronics, defense and scientific research departments have widely applied.
2. Appearance:a white crystalline powder or flake triclinic axis, shiny crystals, a creamy feel, no odor.Soluble in water, alcohol, glycerol, ethers and essential oils in a weak acid solution. Large for the glass (optical glass, acid glass, heat-resistant glass, glass fiber insulation materials) industry, to improve the heat glass, transparent performance, increase mechanical strength, shorten the melting time.
3. Boric acid specification:
| (H3BO3)≥ |
98% |
99.5% |
99.9% |
| Color |
White |
White |
White |
White |
White |
| Appearance |
Granular |
Powder |
Granular |
Powder |
Powder |
| Size |
2-4 mm |
60-80 mesh |
2-4 mm |
60-80 mesh |
60-80 mesh |
| B (%) ≥ |
17±0.1 |
17±0.1 |
17.5±0.1 |
17.5±0.1 |
17.6±0.1 |
| B2O3 (%) ≥ |
55.2±0.1 |
55.2±0.1 |
56.1±0.1 |
56.1±0.1 |
56.3±0.1 |
| SO42- (%) ≤ |
0.035 |
0.0005 |
0.0002 |
| Cl- (%) ≤ |
0.0018 |
0.0001 |
0.0001 |
| Fe (%) ≤ |
0.0006 |
0.0002 |
0.0001 |
| Heavy metals (Pb) % ≤ |
0.0008 |
0.0002 |
0.0001 |
| Water insoluble (%) ≤ |
0.01 |
0.005 |
0.001 |
| Packing |
25kg, 50kg,1000kg plastic-lined plastic woven bags or as client's request |
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