Basic Chromium Sulphate
|
ITEM |
SPECIFICATION | ||
|
category I |
category II |
category III | |
|
Cr2 |
24-26% |
21-23% |
21-23% |
|
Alkalinity |
33 ± 1% |
40 ± 1% |
33 ± 1% |
|
Iron (Fe) content |
0.1%MAX | ||
|
Water insoluble |
0.1% MAX | ||
Function: all leather and fur tanning and the main retanning, especially in high-grade leather tanning.