Ammonium bisulfate in chennai india
Ammonium bisulfate, also known as ammonium hydrogen sulfate, is a white, crystalline solid with the formula (NH4)HSO4. It is the product of the half-neutralization of sulfuric acid by ammonia.
Production
It is commonly collected as a byproduct of the "acetone cyanohydrin route" to the commodity chemical methyl methacrylate.
It can also be obtained by hydrolysis of sulfamic acid in aqueous solution, which produces the salt in high purity:
H3NSO3 + H2O → [NH4]+[HSO4]−
It also arises by the thermal decomposition of ammonium sulfate:
(NH4)2SO4 → (NH4)HSO4 + NH3
Industry Uses
Agricultural chemicals (non-pesticidal)
Corrosion inhibitors and anti-scaling agents
Oxidizing/reducing agents
Photosensitive chemicals
Processing aids, not otherwise listed
photochemicals
Consumer Uses
Agricultural products (non-pesticidal)
Cyanide destructrion
Cyanide treatment
Fuels and related products
Non-TSCA use
Photographic supplies, film, and photo chemicals
Water treatment products
Applications
It can be further neutralized with ammonia to form ammonium sulfate, a valuable fertilizer. It can be used as a weaker alternative to sulfuric acid, although sodium bisulfate is much more common.