cn dn en Tel : 86-453-6228414
Fengda Chemicals Corp.
Leader of China Chemical Enterprise
img1
Hot: oxalic acid
banner
Hot search: oxalic acid
Sodium Sulphite
Molecular formula:Na2SO3
Molecular weight:126.04
CAS No.:7757-83-7
Property:White crystal powder. Specific gravity: 2.633. Melting point: 150℃. soluble in water, lightly soluble in alcohol. Water solution appears light alkalinity, it decomposition when heated, and has reduction role. It becomes sodium sulphate when oxidation in the air, it is easy to decompose when meet inorganic acid, it will release CO2gas .
Usage:It is mainly used for the industry of dyeing, medicine, leather making,paper making, chemical fiber, film, photographing, food, etc.
Packing:Net in 25KG/50KG Plastic Woven Bag.
Specification:


Item

I

II

III

Na2SO3%

92 Min

96 Min

97 Min

Fe %

0.002 Max

0.005 Max

0.003 Max

Water insoluble material %

0.1 Max

0.03 Max

0.02 Max

Moisture

2% Max

 ----

 ----

Free alkali (by sodium carbonate) %

----

0.4 Max

0.10 Max

Na2SO4%

----

----

2.5 Max

NaCl %

----

----

0.10 Max