|
Purity
|
95%min
|
|
NaOH
|
1.5%max |
|
Na2Co3
|
1.0%max |
|
NaCl
|
1.0%max |
|
Na2S
|
0.06%max |
|
Moisture
|
1.5%max |
Useage: Used for leather industry, chrome tanning method, used to disguise the acid catalysts and stable synthetic agent, dyeing and printing industry of the reducing agent, used in the production of insurance powder, oxalic acid, formic acid