Ammonium fluoroborate

Molecular formula: NH4BF4
Molecular weight: 104.86

Property: Clear crystal or colorless needle crystal; relative density 1.85; soluble in water; 100ml of water can solve 25kg ammonium borofluoride at 16 °C, and 97kg at 100°C. The PH value of its aqueous solution is slightly less 7. It is insoluble in alcohol. and will decompose at 110 °C or above. When the temperature is very high, it will get sublimed.

Use: Used as the finishing catalyst for resin in textile and printing industry, as the fluxing agent to provide inert gas, as the welding fluxing agent for aluminum and copper, as the catalyst for magnesium, magnesium alloy, and making sand mould resin adhesive, as the fire retardant and chemical reagent.

Product quality: Company standard

Index name	Special grade	First grade	Index name	Special grade	First grade
Ammonium fluoroborate (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	Test of wate solubility	Qualified	Qualified

Casing: Packed in plastic woven bag lined with vinyon bagl; 25kg per bag.