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Sodium sulfide nonahydrate

Catalog Number
ACM1313844
Product Name
Sodium sulfide nonahydrate
Structure
Sodium sulfide nonahydrate
CAS
1313-84-4
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Synonyms
SODIUM SULPHIDE HYDRATE;SODIUM SULFIDE, HYDRATE, FUSED;SODIUM SULFIDE, HYDROUS;sodiumsulfide,hydrated;sodiumsulphide,nonahydrate;sodiumsulphidenonahydrate;sulfuredesodium;sulfuredesodium,nonahydrate
Molecular Weight
240.18
Molecular Formula
H18Na2O9S
Melting Point
50°C
Density
1.43
Appearance
Colourless solid
Storage
2-8°C
Assay
0.9999
Stability
Stable. Hygroscopic. Light-sensitive. Flammable. Avoid exposure to air, acids, oxidizers, strong bases, strong reducing agents, most common metals.
Application
Sodium sulfide in solid form reacts with carbon dioxide in the presence of moisture to form hydrogen sulfide and sodium carbonate. Thus, the H2S odor of sodium sulfide crystals is attributed to its exposure to moist air:

Na2S + H₂O + CO2 → Na2CO3 + H2S

In aqueous solution, sodium sulfide reacts with a number of metal salts forming insoluble sulfides.

When added to dilute mineral acids, hydrogen sulfide is generated.
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