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Molecular formula: Na2S Property: Thin flakes, yellow or red, soluble water, presenting strong alkaline solution, easily oxidized when exposed to air, poison
Specification
Specification
ITEM
STANDARD I
STANDARD II
STANDARD III
STANDARD IV
STANDARD V
Fe
20ppm max
30ppm max
50ppm max
150ppm max
1500ppm max
Na2S
62%min.
62%min.
60%min.
60%min.
60%min.
Water insolubles
0.10%max.
0.18%max.
0.18%max.
0.30%max.
0.40%max.
Na2CO3
1.80%max.
1.80%max.
1.80%max.
3.00%max.
5.00%max.
Na2SO3
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.
Colour
Yellow
RED
Direction For Use
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)