Back بيكبريتيد الصوديوم Arabic سودیوم هیدروسولفید AZB Hidrogensulfur de sodi Catalan Hydrogensulfid sodný Czech Natriumhydrogensulfid German Natria bisulfido EO سدیم هیدروسولفید FA Natriumvetysulfidi Finnish Hydrogénosulfure de sodium French सोडियम हाइड्रोसल्फाइड HI
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| Names | |
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| IUPAC name
Sodium hydrosulfide
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| Other names
Sodium bisulfide
Sodium sulfhydrate Sodium hydrogen sulfide | |
| Identifiers | |
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3D model (JSmol)
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| ChEMBL | |
| ChemSpider | |
| ECHA InfoCard | 100.037.056 |
| EC Number |
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PubChem CID
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| RTECS number |
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| UNII | |
| UN number | 2922 2318 |
CompTox Dashboard (EPA)
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| Properties | |
| NaSH | |
| Molar mass | 56.063 g/mol |
| Appearance | off-white solid, deliquescent |
| Density | 1.79 g/cm3 |
| Melting point | 350.1 °C (662.2 °F; 623.2 K) (anhydrous) 55 °C (dihydrate) 22 °C (trihydrate) |
| 50 g/100 mL (22 °C) | |
| Solubility | Soluble in alcohol, ether |
| Structure | |
| rhombohedral | |
| Hazards | |
| Occupational safety and health (OHS/OSH): | |
Main hazards
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Flammable solid, stench, reacts with acids to release hydrogen sulfide |
| GHS labelling: | |
   
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| Danger | |
| H226, H251, H290, H301, H314, H400 | |
| P210, P233, P234, P235+P410, P240, P241, P242, P243, P260, P264, P270, P273, P280, P301+P310, P301+P330+P331, P303+P361+P353, P304+P340, P305+P351+P338, P310, P321, P330, P363, P370+P378, P390, P391, P403+P235, P404, P405, P407, P413, P420, P501 | |
| NFPA 704 (fire diamond) | |
| Flash point | 90 °C (194 °F; 363 K) |
| Safety data sheet (SDS) | TDC MSDS |
| Related compounds | |
Other anions
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Sodium hydroxide Sodium amide |
Other cations
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Ammonium hydrosulfide |
Related compounds
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Sodium sulfide |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Sodium hydrosulfide is the chemical compound with the formula NaSH. This compound is the product of the half-neutralization of hydrogen sulfide (H2S) with sodium hydroxide (NaOH). NaSH and sodium sulfide are used industrially, often for similar purposes. Solid NaSH is colorless. The solid has an odor of H2S owing to hydrolysis by atmospheric moisture. In contrast with sodium sulfide (Na2S), which is insoluble in organic solvents, NaSH, being a 1:1 electrolyte, is more soluble.