sodium sulphide:
Molecular formula: Na2S
Property: Thin flakes, yellow or red, soluble water, presenting strong alkaline solution, easily oxidized when exposed to air, poison
Benefits:
used as making sulphur dyestuff intermediate reducer, mordant, flotation agent, depilatory for leather, digestion auxiliary in paper-making also widely used in pigment and rubber industry, etc.
Packing:
in 25KG woven bags Or in 150KG iron drum (1500ppm)
|
ITEM
|
I
|
II
|
III
|
IV
|
V
|
VI
|
|
Fe
|
10ppmmax
|
20PPM max
|
30ppm max
|
80ppm max
|
150ppm max
|
1500ppm max
|
|
Na2S
|
60%min.
|
60%min.
|
60%min.
|
60%min.
|
60%min.
|
60%min.
|
|
Water insolubles
|
0.10%max.
|
0.10%max.
|
0.18%max.
|
0.20%max.
|
0.30%max.
|
0.40%max.
|
|
Na2CO3
|
1.80%max.
|
1.80%max.
|
1.80%max.
|
1.80%max.
|
3.00%max.
|
5.00%max.
|
|
Na2SO3
|
1.80%max.
|
1.80%max.
|
1.80%max.
|
2.00%max.
|
2.00%max.
|
2.00%max.
|
|
Na2S2O3
|
2.00%max.
|
2.00%max.
|
2.00%max.
|
2.00%max.
|
2.00%max.
|
2.00%max.
|
|
Colour
|
Yellow
|
RED
|
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