sodium sulphide (sodium sulfide) flakes main spec:
Item
| yellow flakes
| red flakes
|
Na2S
| 60%min.
| 60%min.
| 60%min.
| 60%min.
| 60%min.
| 60%min.
|
Fe
| 10ppm
| 20PPM
| 30ppm
| 80ppm
| 150ppm
| 300ppm
|
Water insolubles
| 0.10%max.
| 0.15%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
| 2.00%max
| 2.00%max
| 2.00%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
|
sodium sulphide usage :
♦ Used in Leather or tanning for removing hair from hides and skins.
♦ used in synthetic organic intermediate and preparation of sulfur dye additives .
♦ in textile industry as a bleaching, as a desulfurizing and as a dechlorinating agent,
♦ used in pulp and paper industry.
♦ sodium sulphide is used in water treatment as an oxygen scavenger agent.
♦ in the photographic industry to protect developer solutions from oxidation.
♦ It is used in the production of rubber chemicals and other chemical compounds.
♦ It is use in other applications include ore flotation, oil recovery, food preservative,
making dyes, and detergent.
♦ used in mining industry as inhibitor , curing agent , removing agent
