ISO 9001:2000 certified
origin: China
Properties& Applications:
White monoclinic crystal; It is easily soluble in the water while not in alcohol and has deliquescence in the wet air;
Widely used as the photography fixative , dechlorinate of textile and paper after bleaching, and mordant of printing and dyeing, and also for pharmacy, galvanization, tannage, metallurgy, dyestuff, and other sectors.
Packing&Storage:
Packed in 25kg net PP/PE bags or as per customers demands; Stored in dry and cool warehouse with packages sealed and away from rain and wetting.
Quality StandardHG/T 232892 (Industry Grade)
|
Index Name |
High Grade |
First Class |
|
Total (Na2S2O3-5H2O)%≥ |
99.0 |
98.0 |
|
Sulfideas Na2S%≤ |
0.001 |
0.003 |
|
IronFe%≤ |
0.002 |
0.003 |
|
Water insoluble %≤ |
0.01 |
0.03 |
|
PH Value200g/L Solution |
6.5-9.5 |
6.5-9.5 |
