Specifications : Moisture % by weight, max. : 1.0 Ammonical Nitrogen, % by weight, min : 20.6 Free acidity as H2SO4 % by weight, max, (0.04 for material obtained from by-product gypsum ). : 0.025 Arsenic as As2O3 % by weight max : 0.01 Sulphur (as S), % by weight, min. : 23.0

We manufacture two variants of Ammonium Thio Sulphate: in liquid and crystal form. Their characteristics are as follows: Ammonium Thio Sulphate-Liquid * Assay as (NH4) 2S2O3%: 58.0 to 61.0% * Sulphite as (NH4) 2SO3%: 1.0 max * Relative density at 20/20 deg.c solution: 1.32 to 1.34 * Sulphide as (NH4) 2S%: 0.0005 * Insoluble matter% by mass: 0.2 * Residue on ignition% by mass: 0.2 * Iron (as Fe)% by mass: 0.001 * Heavy metals (as Pb)%: 0.001 * pH: 6 to 8 Ammonium Thio Sulphate-Crystal * Assay as (NH4) 2S2o3% by mass: 90-95% * Sulphite as (NH4) 2SO3)% by mass: 20% max * Acidity: To pass test * Alkalinity as (NH4DH)% by mass: 0.2% mass * Moisture content: To pass test * Sulphite as (NH4) 2S% by mass: 0.002% max * Iron as Fe% by weight: 0.005% max * Heavy metal (as PB)% by mass: 0.002% max * Insoluble matter % by mass: 0.4% max * Appearance of solution: To pass test * pH: 6.8 Uses: Both forms of Ammonium Thio Sulphate are widely used as fixer in photography in intermediates at reduction level.

We supply pure and effective ammonium sulphate ((NH4)2SO4). This inorganic chemical is widely used as a fertilizer.Ammonium sulphate is insoluble in alcohol or liquid ammonia. It is slightly hygroscopic and absorbs water from the air at relative humidity