Specification:
Fe |
Na2S |
Water insoluble |
Na2CO3 |
Na2SO3 |
Na2S2O3 |
color |
15ppm Max |
60min. |
0.05%max |
1.80%max |
1.80%Max |
2.00%max. |
Yellow |
20ppm Max |
60%min. |
0.10%max |
1.80%max |
1.80%Max |
2.00%max. |
|
30ppm Max |
60%min. |
0.18%max |
1.80%max |
1.80%max |
2.00%max. |
|
50ppm Max |
60%min |
0.18%max |
1.80%max |
2.00%max |
2.00%max |
|
80ppm Max |
60%min |
0.20%max |
2.00%max |
2.00%max |
2.00%max |
|
150ppm Max |
60%min |
0.30%max |
3.00%max |
2.00%max |
2.00%max |
|
1500ppm Max |
60%min |
0.40%max |
5.00%max |
2.00%max |
2.00%max |
Red |
Fe | Na2S | Water insoluble | Na2CO3 | Na2SO3 | Na2S2O3 | color |
15ppm Max | 60%min. | 0.05%max | 1.80%max | 1.80%Max | 2.00%max. | Yellow |
20ppm Max | 60%min. | 0.10%max | 1.80%max | 1.80%Max | 2.00%max. | |
30ppm Max | 60%min. | 0.18%max | 1.80%max | 1.80%max | 2.00%max. | |
50ppm Max | 60%min | 0.18%max | 1.80%max | 2.00%max | 2.00%max | |
80ppm Max | 60%min | 0.20%max | 2.00%max | 2.00%max | 2.00%max | |
150ppm Max | 60%min | 0.30%max | 3.00%max | 2.00%max | 2.00%max | |
1500ppm Max | 60%min | 0.40%max | 5.00%max | 2.00%max | 2.00%max |
Fe |
Na2S |
Water insoluble |
Na2CO3 |
Na2SO3 |
Na2S2O3 |
color |
15ppm Max |
60%min. |
0.05%max |
1.80%max |
1.80%Max |
2.00%max. |
Yellow |
20ppm Max |
60%min. |
0.10%max |
1.80%max |
1.80%Max |
2.00%max. |
|
30ppm Max |
60%min. |
0.18%max |
1.80%max |
1.80%max |
2.00%max. |
|
50ppm Max |
60%min |
0.18%max |
1.80%max |
2.00%max |
2.00%max |
|
80ppm Max |
60%min |
0.20%max |
2.00%max |
2.00%max |
2.00%max |
|
150ppm Max |
60%min |
0.30%max |
3.00%max |
2.00%max |
2.00%max |
|
1500ppm Max |
60%min |
0.40%max |
5.00%max |
2.00%max |
2.00%max |
Red |
Fe |
Na2S |
Water insoluble |
Na2CO3 |
Na2SO3 |
Na2S2O3 |
color |
15ppm Max |
60%min. |
0.05%max |
1.80%max |
1.80%Max |
2.00%max. |
Yellow |
20ppm Max |
60%min. |
0.10%max |
1.80%max |
1.80%Max |
2.00%max. |
|
30ppm Max |
60%min. |
0.18%max |
1.80%max |
1.80%max |
2.00%max. |
|
50ppm Max |
60%min |
0.18%max |
1.80%max |
2.00%max |
2.00%max |
|
80ppm Max |
60%min |
0.20%max |
2.00%max |
2.00%max |
2.00%max |
|
150ppm Max |
60%min |
0.30%max |
3.00%max |
2.00%max |
2.00%max |
|
1500ppm Max |
60%min |
0.40%max |
5.00%max |
2.00%max |
2.00%max |
Red |
Uses: Used as making sulphur dyestuff intermediate reducer, mordant, flotation agent, depilatory for leather, digestion auxiliary in paper-making also widely used in pigment and rubber industry, etc.