Sodium Bisulphite Solution is a clear, pale yellow liquid manufactured from sulphur dioxide and a sodium alkali with strengths ranging from 16% to 40%.
The product is typically supplied in bulk tankers, 200 litre drums and 1,000 litre IBC’s.
Sodium Bisulphite Solution is a convenient source of SO2 and is therefore used in a wide variety of applications including oxygen scavenging, food preservation and chlorine removal.
■ Product data and typical properties
Molecular weight: 104.06
Specific gravity (20°C): 1.33 (typical)
Crystallisation temperature: 0°C approx.
Appearance: clear pale yellow liquid
Assay: % w/w SO2 25.0 ± 0.5, % w/w NaHSO3 40.6 ± 0.8
pH (20°C, neat): 3.5-5.0
Sulphates: % Na2SO4 < 1.5
Iron: % as Fe < 0.00025
Heavy metals: % as Pb < 0.001
Selenium: % as Se < 0.0001
Arsenic: % as As < 0.0001
Lead: % as Pb < 0.0002
Mercury: % as Hg < 0.0001
Antimony: % as Sb < 0.0001
Cadmium: % as Cd < 0.0001
Chromium: % as Cr < 0.0001
Nickel: % as Ni < 0.0001
The product supplied to this specification meets the requirements for food additive E222 – EU 231/2012 & EU 497/2013 and chemicals used for treatment of drinking water UNI EN 12120:2012.
The product is tested using our standard analytical methods.
Road tankers, according to transport regulations.
1000 litre Intermediate bulk containers (IBCs), 200 and 25 litre polyethylene drums.
For handling information please consult the documentation