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Ammonium Fluoborate
Identification
Synonyms: Ammonium Fluoroborate; Ammonium tetrafluoroborate; ammonium borofluoride
CAS No.: 13826-83-0
EINECS: 237-531-4
Molecular Weight: 104.84
Structural Formula: 
Molecular Formula: NH4.BF4
m.p.: 230 °C (decompose @110 °C)
Specific Gravity: 1.87
Solubility in water: Soluble, 25 g/100ml @ 25 °C
Application
Ammonium fluoborate technical grade has the following applications:
1, To provide an inert atmosphere in soldering process to prevent oxidation of metal surface
2, A welding flux auxiliary for aluminum, copper and aluminum alloy, casting antioxidant for magnesium or Mg alloy
3，Applications in reagent, adhesive, catalyst, flame-retardant and etc.
Specification*
| Ammonium fluoborate content | 98.0% min. |
|---|---|
| Phosphates | 0.01% max. |
| Iron as Fe | 0.05% max. |
| Heavy metals as Pb | 0.1% max. |
| Chlorides | 0.05% max. |
| Sulphates as SO4 | 0.1% max. |
| Silicates as SiO4 | 0.1% max. |
| Water solubility test | conform |
| Appearance | white crystalline powder |
Standard Packaging
25kg/fiber drum on pallet
bags on pallets
Risks and Safety Information
Ammonium fluoborate is regulated as hazardous goods
UN3260 Class 8 Inorganic Corrosive Solid
Warning: Corrosive! Moisture Sensitive!
Stored in a cool and dry place.
Risk Phase: R36/37/38, R34
Safety Phase: S26, S36, S45, S36/37/39
For more information please refer to MSDS
