96% Sodium metabisulfite

Appearance: white or light yellow crystalline powder. USE:Mordant of printing and dyeing; Dechlorinate of textile after bleachin
Appearance
: white or light yellow crystalline powder.

Application
:Mordant of printing and dyeing; Dechlorinate of textile after bleaching;Sulphonated agent and reducer of chemical industry and pharmacy; Bleaching agent of paper pulp, bamboo and timber bleaching agent of stapk; Mineral-dressing of nonferrous metals; Treating agent of waste water; Rubber solidifying agent.

Packing:
In 25, 50, 1000kg PVC plastic film with a polypropylene bag.

Technical Specification:
in conformity with: HG/T 2826-1997
Item
High-grade
First-grade
Content (as Na
2
S
2
O
5
)%
96.0 % min.
94.0 % min.
Iron (as Fe)
0.005 % max.
0.010% max.
water-insoluble
0.05% max.
0.05% max.
Arsenic (as As)
0.0001% max.


Technical Specification:
in conformity with: GB6010-85(first-grade)
Item
Index
Content(SO
2
)
65.0 % min.
Iron (Fe)
0.005% max.
insoluble in water
0.05% max.
PH Value
4.0-4.6