NOMENCLATURE 

Zinc Formaldehyde Sulphoxylate (ZFS)

PHYSICAL FORM 

Powder 

CHEMICAL FORMULA 

Zn(HS02 CH20)2 

PURITY (as ZFS) 

94% Min

Zinc Formaldehyde Bisulphite (Zn(HS03  CH20)2) 

2.5% Max 

Zinc Sulphite (ZnSO3 2H20) 

3.5% Max 

BULK DENSITY (Tapped) 

1.0 + 0.1 

SOLUBILITY 

Practically soluble in Water; Insoluble in Alcohol