Appearance: Colorless transparent liquid
Stannous fluoroborate (base on Sn²⁺ ) : 20.3%min
Sn⁴⁺ : 0.8% max
Iron (Fe): 0.005% max
Chloride (Cl^-) : 0.005% max
Sulfate (SO₄^2- ) : 0.01% max

Package: 25kg or 30kg or 250kg plastic drum