Specifications:
|
|
5ppm
|
10ppm
|
15ppm
|
20ppm
|
30ppm
|
|
Na2S (%)
|
60 MIN
|
60 MIN
|
60 MIN
|
60MIN
|
60 MIN
|
|
Na2SO3 (%)
|
1.00 MAX
|
1.00 MAX
|
2.00 MAX
|
2.00MAX
|
2.00 MAX
|
|
Na2S2O3 (%)
|
2.00 MAX
|
2.00 MAX
|
2.00 MAX
|
2.00MAX
|
2.00 MAX
|
|
Fe (%)
|
0.0005 MAX
|
0.001 MAX
|
0.0015 MAX
|
0.002MAX
|
0.003 MAX
|
|
Na2CO3 (%)
|
2.00 MAX
|
2.00 MAX
|
2.00 MAX
|
1.80MAX
|
1.80 MAX
|
|
Water Insoluble (%)
|
0.20 MAX
|
0.20 MAX
|
0.2 MAX
|
0.05MAX
|
0.18 MAX
|
|
|
50ppm
|
80ppm
|
150ppm
|
1500ppm
|
|
Na2S (%)
|
60 MIN
|
60 MIN
|
60 MIN
|
60 MIN
|
|
Na2SO3 (%)
|
2.00 MAX
|
2.00 MAX
|
2.00 MAX
|
2.00 MAX
|
|
Na2S2O3 (%)
|
2.00 MAX
|
2.00 MAX
|
2.00 MAX
|
2.00 MAX
|
|
Fe (%)
|
0.005 MAX
|
0.008 MAX
|
0.015 MAX
|
0.15 MAX
|
|
Na2CO3 (%)
|
2.00 MAX
|
2.00 MAX
|
3.00 MAX
|
5.00 MAX
|
|
Water Insoluble (%)
|
0.20 MAX
|
0.20 MAX
|
0.2 MAX
|
0.4 MAX
|
Appearance: solid-fused or granular, brown red color, soluble in water, presenting strong alkaline solution, easily oxidized when exposed to air, poisonus.
Application: uesed as making sulphur dyes or dyestuff intermediate reducer, mordant, flotation agent, depilatory for leather, digestion auxiliary in paper-making. also widely in pigment and rubber industry, etc.
Packaging: 25kg or 50kg pp bags.