Manufacturer high quality B2O3 boron oxide powder cas 1303-86-2
Boron oxide is a colorless glassy crystal or powder. The quality is hard and brittle, the sufrace is smooth
and tasteless. It is thermally stable and will not be reduced by carbon when it is incandescent, but alkali metals, magnesium and aluminum can all reduce it to monomer boron. At about 600℃, It becomes a very
viscous liquid. Boric acid anhydride can strongly absorb water in the air to generate boric acid. It is soluble
in acid, ethanol, hot water, and slightly soluble in cold water. Boron oxide can be combined with several metal oxides to form glass with characteristic colors. It is completely miscible with alkali metals, copper,
Sliver, lead, arsenic, antimony, and bismuth oxides.
The density of crystalline boron oxide is 2.46g/cm3, the density of amorphous boron oxide is 1.80 ~ 1.84g/cm3, melting point 557℃, solubility g/100gH2O: 1.1(0℃), 15.7(100℃) Easily absorb water, become
turbid after absorbing moisture, and can also dissolve in alcohol.
When the temperature is low, H3BO3 dehydration can produce boron trioxide crystals, This crystal contains BO4 tetrahedral structural unit, density 1.805g/cm3, melting point 450℃, The density of glassy boron oxide
is 1.795g/cm3, and it gradually softens when the temperature rises, and becomes liquid when it reaches the red heat high temperature, with a boilling point of 1500℃. Boron and oxygen are directly combined to ontain B2O3.
1. Silicate decomposition cosolvent
2. Semiconductor material dopants in
3. Heat-resistant glassware and paint refractory additives
4. Preparation of elements and various the main raw material of boride.
5. Preparation of elements and various the main raw material of boride.
6. Raw materials for enamel.
7. Used as chemistry in the machinery industry, Raw material for heat treatment of boron dissolving agent
8. Organic synthesis catalyst
9. High temperature used as lubrication additives.
10. Atomic energy industry, and electronics industry.
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Inspection item
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Inspection index
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Boron Oxide, %
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≥ 98
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Sulfate, %
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≤0.2
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Sodium oxide, %
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≤0.1
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Chloride, %
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≤0.1
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Water insoluble matter, %
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≤0.1
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Average particle size
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80 - 200 mesh
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25kg/bag
Or can be customized according to customer needs
Storage should be at cool, dry and ventilate.
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