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Potassium Fluoroborate
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Molecular formula:
| KBF4 | |
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CAS:
| 14075-53-7 | |
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Molecualr weight:
| 125.9 | |
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Properties:
| white granule crystal | |
| Purity: | ≥98% | |
| Impurities: | Item | Index |
| Chloride(Cl) | ≤0.1% | |
| Sulfate(SO4) | ≤0.01% | |
| Iron(Fe) | ≤0.03% | |
| Moisture (H2O) | ≤0.05% | |
| Lead(Pb) | ≤0.01% | |
| Calcium(Ca) | ≤0.05% | |
| Magnesium(Mg) | ≤0.05% | |
| Silica(as SiO2) | ≤0.3% | |
| Melting point | 530°C | |
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Granularity +60mesh:5%max; +200mesh: 50%min.
300mesh:15%max.
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| Usage: |
analytical reagent, fusing agent, in manufacture of Boron
Trifluoride, mould material for casting AI and Mg, in
electrochemical and Chemical experiments.
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| Packing: | 25kg plastic woven bag | |
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Gaution at transportation: | poisonous, must be kept from moisture. | |
BOROFULUORIDE;POTASSIUM FLUOROBORATE;Avogadrite;Borate(1-),
tetrafluoro-,potassium;Borate(1-),tetrafluoro-,potassium;boronpotassiumfluoride;KB
F4;Potassium fluoborate;Potassium Tetrafluoborate;
Aluminium-metallurgy:
- as component in fluxing and grain refining agents
for aluminium and magnesium
- as component in protecting salts for light metal castings
Production of abrasives:
- as active filler in reinbonded abrasives for metal treatment
Production of soldering agents:
- as component in fluxing agents for soldering and brazing
According to one aspect of the invention, a braze composition is provided that
comprises an aqueous binder system, a flux composition containing multiple
inorganic compounds, and titanium hydride. The multiple inorganic compounds
include potassium tetrafluoroaluminate and/or potassium tetrafluoroborate, more
preferably both. The flux composition may contain additional inorganic compounds
that, while optional, if used can be preferably selected to have a decomposition
temperature or to form an intermediate complex having a decomposition
temperature that is above or below the decomposition temperatures of potassium
tetrafluoroaluminate and potassium tetrafluoroborate. According to a preferred
aspect of the invention, the braze composition further contains a metallic braze
alloy and is in the form of a braze paste or slurry suitable for use in manufacturing,
coating, repair, and build-up of superalloy components