METABISULPHITE 97% ;Molecular formula ; Na2S2O5 Properties: white or yellow power crystal.,or small crystal

Metabisulphite Na2S2O5: 97% min Packing: in bag of 25kg;1000kg;1100kg;1200kg;1250kg  

Product :  Metabisulfite   CAS No. : 7681-57-4

Formula: Na2S2O5

Appearance:  Appearance: white or light yellow crystalline powder. Relative density 1.4,soluble in water, water solution is acidity, soluble in glycerin and slightly soluble in ethanol. It is easy to be decompose and oxided Na2SO4 in air. 

Specification

Purity (Na2S2O5)	97%min
SO2	65%min
Ferrous (Fe)	0.005%max
Clarity	Slight turbid
Heavy metal (Pb)	0.001%max
Arsenic (As)	0.0002%max
Water insolubles	0.05%

Use: mordant of printing and dyeing, dechlorinate of textile after bleaching, Sulphonated agent and reducer of chemical industry and pharmacy; Bleach of paper pulp, bamboo and timber bleach of stapk; Mineral-dressing of nonferrous metals Treatment agent of waste water; Rubber solidifying agent  Perfume industry is served as hydrocarbon perfume aldehyde The hide profession employ to do to molt dose and pliable dose and wearproof dose,The sensitize industry is served as the developing agent reductant and the protection of fixing bath dose and so on.

Packing: in 25kg plastic woven bags or Jumbo bags according to customer's requirement.

metabisulphite