Potassium sulfite

Post Date:
Jul 26,2017
Expiry Date:
Jan 22,2018
Detailed Description:
Cas No. :10117-38-1 Quantity: 20Metric Tons
Specs:45%
Payment Method: T/T AT ADVANCE
Technical index
Test item Unit Specification Test method
K2SO3 g/100g 44.5-45.5 ISO 5990-1996（E）
density（20℃） kg/l 1.445-1.460 ISO 5990-1996（E）
appearance colourless or light yellow transparent liquid ISO 5990-1996（E）
K2S2O3 g/100g ≦0.01 spectrophotometry
pH value(10%solution) 9.0-10.0 ISO 5990-1996（E）
heavy metal（measured by Pb） mg/kg ≦ 10 AES
Fe mg/kg ≦5 AAS
reaction with NH3-AgNO3 qualified ISO 5990-1996（E）
KCl g/100g ≦ 0.3 IC
sulphate（measured by K2SO4） g/100g ≦ 0.5 IC

Product usage
The products could be used as dechlorination agent in the production of potassium hydroxide ion-exchange membrane and developing protective agent in photographic industry. It could also be used in the textile fabrics for bleaching, calcium removing reagent in tanning industry and as the preservative for food industry.
Product package
Plastic barrel package: 250 kg per drum (200L) and 1500kg per barrel (IBC drum) or in accordance with user’s requirements.
CAS Registry Number:
10117-38-1
Synonyms:
;Potassium sulfite solution;potassium sulphite;dipotassium sulfite;sulfurous acid, monopotassium salt;
Molecular Formula:
K₂SO₃
Molecular Weight:
158.2548
Molecular Structure:

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