for Leather Depilator Sodium Sulfide Flake

Product Description

Product Description
1. Appearance:red or yellow flakes
2. Grade:industry grade
3. MF: Na2S
4. EINECS: 215-212-0
5. Standard: GB/T 10500-2009
6. N.W 25kg in plastic woven bags with lining or with pallet.
Sodium sulfide is inorganic compound, pure sodium sulfide is colorless crystalline powder.
At normal temperature, pure products are colorless or slightly purple prismatic crystals, and industrial products are often pink, brownish red and earth yellow blocks due to impurities.
Specification

Test Index	1500PPM	150PPM	80PPM	30PPM	20PPM	10PPM
Na2S %	≥ 60.0	≥ 60.0	≥ 60.0	≥ 60.0	≥ 60.0	≥ 60.0
Fe %	≤ 0.15	≤ 0.015	≤ 0.008	≤ 0.003	≤ 0.002	≤ 0.001
water insoluble matter %	≤ 0.8	≤ 0.4	≤ 0.4	≤ 0.2	≤ 0.2	≤ 0.2
Na2CO3 %	≤ 5.0	≤ 3.5	≤ 3.5	≤ 3.5	≤ 3.5	≤ 3.5

Application
1. Paper industry for paper cooking agent.
2. Textile industry for the reduction of artificial fiber denitrification and nitrification, and cotton fabric dyeing mordant.
3. It is also used for the production of sodium thiosulfate, sodium thihydride, sodium polysulfide and so on.
4. Used as corrosion inhibitor. It is also the raw material of sodium thiosulfate, sodium polysulfide, sulfide dyes and so on.
5. Used for the manufacture of sulfide dyes, leather depilation agent, metal smelting, photography, rayon denitration, etc.

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