CAS No.: | 1313-82-2 |
---|---|
Formula: | Na2s |
EINECS: | 215-212-0 |
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Property: Thin flakes, yellow or red, soluble water, presenting strong alkaline solution, easily oxidized when exposed to air, poison.
Sodium sulfide, also known as stinky alkali, stinky soda, and alkali sulfide, is an inorganic compound. It is a colorless crystalline powder with strong moisture absorption and is easily soluble in water. The aqueous solution is strongly alkaline. It can cause burns when it touches the skin and hair, so sodium sulfide is commonly known as alkali sulfide. When exposed to the air, sodium sulfide will release toxic hydrogen sulfide gas with the smell of rotten eggs. Industrial sodium sulfide is pink, brownish red, and ocher due to impurities.Specification
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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