Character & Purpose: Crystal block (flake / solid)，Mainly used in paper making, printing and dyeing , tanning, etc.
Packing: 25kg net PP/PE bags for flake, 150kg net iron drum for solid
Formula: Na2S
Standard:
|
Item |
Spec. |
|
Fe3+:1500ppm |
Fe3+:150ppm |
Fe3+:80ppm/50ppm |
Fe3+:30ppm/20ppm |
|
Na2S/% |
60 Min. |
60 Min. |
60 Min. |
60 Min. |
|
Na2CO3/% |
5 Max. |
2.0 Max. |
2.0 Max. |
2.0 Max. |
|
Water insolubles/% |
0.4 Max. |
0.2 Max. |
0.2 Max. |
0.05/0.03 Max. |
|
Iron Content/% |
0.15 Max. |
0.015 Max. |
0.008/0.05 Max. |
0.003 /0.002 Max. | |
