Ammonium Fluoroborate
[Molecular Formula]NH4BF4
[Molecular Weight] 104.86
[Properties]
Clear crystal or needle-like colorless crystal, specific gravity: 1.85, soluble in water(16°C: 25g/100ml water; 100°C: 96g/100ml water), its aqueous solution is of weak acidity, insoluble in alcohol, to decompose when heated to 110°C and sublime if being strongly heated.
[Uses]
It is used as resin finishing catalyst in printing and dyeing of textile, as gas flux to provide inert atmosphere, as flux in aluminum or copper welding, as catalyst in producing sand-type resin adhesive for metal casting and precise casting of magnesium, magnesium alloy and other oxidable metal. It is also used as flame retardant and chemical reagent, etc.
[Quality Index] Enterprise Standard(ES)
Item |
Excellent Grade |
First Grade |
Item |
Excellent Grade |
First Grade |
NH4BF4, %≥ |
98.0 |
97.0 |
Chloride(Cl),% ≤ |
0.005 |
0.01 |
Phosphate(PO4), % ≤ |
0.01 |
0.02 |
Sulfate(SO4),% ≤ |
0.10 |
0.15 |
Iron(Fe), % ≤ |
0.005 |
0.008 |
Silicate(SiO2),% ≤ |
0.01 |
0.02 |
Heavy Metal(Pb), % ≤ |
0.10 |
0.15 |
Water-soluble Test |
Qualified |
Qualified |
[Package] Woven bag lined with polyethylene plastic bag, net weight: 25kg/bag. |
