| Customization: | Available |
|---|---|
| Grade Standard: | Agriculture Grade, Industrial Grade, Medicine Grad |
| Appearance: | Yellow Flakes |
|
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|
Item
|
Grade A
|
Grade B
|
|
Colour
|
yellow
|
red
|
|
Na2S%min≥%
|
60
|
52/60
|
|
Na2CO3%max≤%
|
1.80
|
5.00
|
|
Na2SO3%max≤%
|
1
|
2.00
|
|
Na2S2O3%max≤%
|
2.00
|
2.00
|
|
Water Insolubles % max≤%
|
0.05
|
0.40
|
|
Fe max≤%
|
10-30PPM
|
30-300PPM
|
COA:
| Item |
The National Standard |
| Appearance |
Yellow Flakes |
| NaHS %≥ | 70.00 |
| Na2S %≤ | 3.50 |
| Fe %≤ | 0.0030 |
| Conclusion | Qualified |
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