High quality for Sodium Sulphite Anhydrous 96% Na2so3 industrial grade
Product description:
Usage
(1) Industry Grade : Used in Dyeing and printing Industry ,as dechlorinating agent and bleaching agent, in leather and tanning industry as bleaching agent , developer agent , reductant agent , stabilizer agent , or used in papermaking, electronic and water treatment industry.
(2) Photo Grade: In the photographic industry as component of developer bath .
(3) Pharmaceutical Grade : pharmaceutical industry for the production of chloroform, benzene and formaldehyde phenylpropanoid Sulfone
Specification:
Item
Super grade
First grade
Assay
97%min
96%min
Fe
0.003%max
0.005%max
Water insoluble
0.02%max
0.03%max
Na2CO3
0.1%max
0.4%max
H2SO4
2.5%max
Not test
NaCl
0.1%max
Not test