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11.Sodium
disulfide
CAS No.: 1313-82-2
Element form: Na2S NH2O
Element amount: (as Na2S)78.06
Appearance: Red and brown
pieces
|
standard name
|
standard |
|
kind A |
kind B |
| excellent |
first |
qualified |
|
| sodium sulfide
content %≥ |
60.0 |
60.0 |
60.0 |
52.0 |
| sulfite
content %≤ |
2.0 |
--- |
--- |
--- |
| sodium thiesulfate
content%≤ |
2.0 |
--- |
--- |
--- |
| iron content
%≤ |
0.04 |
0.15 |
0.20 |
0.15 |
| sodium carbonate
content%≤ |
3.0 |
5.0 |
--- |
4.0 |
| unhydrate
content%≤ |
0.20 |
0.40 |
0.80 |
0.60 |
|
|
|
12.THIOUREA;
THIOCARBAMIDE
The product is widely
used in pharmaceutical industry, agricultural, chemicals,
metallurgical industry, petroleum and so on. it
is also main material for producing sulfur dioxide
carbamied(CH4N2S)
Molecular formula: CH4N2S
Structure form.
CAS No:.62-56-6
Molecular weight: 76.12
Executive standard:
ZBG17013-88 |
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