Ammonium Bisulphite Solution is a clear, citrine yellow liquid manufactured from sulphur dioxide and ammonia solution with strengths ranging from 60% to 70%.
The product is typically supplied in bulk tankers, 200 litre drums and 1000 litre IBC’s for use as an oxygen scavenger in the oil and gas industries and as a processing aid in the food industry, most notably caramel colour and sugar manufactured from beet.
■ Product data and typical properties
Molecular weight: 99.10
Specific gravity (20°C): Specific gravity (20°C)
Crystallisation temperature: 0°C approx.
Appearance: clear citrine yellow liquid
Assay: % w/w NH4HSO3 60.0 ± 2.0
pH (20°C, neat): 5.0 ± 0.5
Iron: % as Fe < 0.0005
1000 litre Intermediate bulk containers (IBCs), 200 and 25 litre polyethylene drums.