431648

Sodium sulfide nonahydrate

≥99.99% trace metals basis

• Sinônimo(s): Disodium sulfide nonahydrate, Sodium sulfide enneahydrate
• Fórmula linear: Na₂S·9H₂O
• Número CAS: 1313-84-4
• Peso molecular: 240.18
• Número CE: 215-211-5
• Número MDL: MFCD00149184
• Código UNSPSC: 12352300
• ID de substância PubChem: 24867038
• NACRES: NA.23
• Ensaio: ≥99.99% trace metals basis
• Formulário: crystals and lumps

Propriedades

• Nível de qualidade: 100
• Ensaio: ≥99.99% trace metals basis
• Formulário: crystals and lumps
• adequação da reação: reagent type: catalyst; core: sodium
• Impurezas: <100 ppm total metallic impurities
• traços de ânion: SO₃^2- and S₂O₃^2-: ≤0.1%
• traços de cátion: Fe:, passes test; NH₄⁺: ≤0.005%
• temperatura de armazenamento: 2-8°C
• cadeia de caracteres SMILES: O.O.O.O.O.O.O.O.O.[Na]S[Na]
• InChI: 1S/2Na.9H2O.S/h;;9*1H2;
• chave InChI: UIINQVYGFKNSPA-UHFFFAOYSA-N

Descrição

Descrição geral

Sodium sulfide nonahydrate is a chemical compound with the formula Na₂S-H₂O. It is a white to yellow hygroscopic solid that is highly soluble in water and has a strong, unpleasant odor. Sodium sulfide nonahydrate is typically made by dissolving elemental sulfur in a solution of sodium hydroxide, which leads to the formation of sodium sulfide. The nonahydrate form of the compound is formed by adding excess water to the solution, which leads to the formation of a crystalline solid with nine molecules of water per molecule of sodium sulfide. Sodium sulfide nonahydrate is often used as a reducing agent in chemical reactions as well as a flotation agent in the mining industry. It is also used in the production of dyes, pigments, and other chemicals.

Aplicação

Sodium sulfide nonahydrate (Na₂S.9H₂O) can be reacted with α,ω-dibromo and/or α,ω-dichloroalkane for the synthesis of polyalkylene sulfide. It can be used as a reducing agent for the removal of nitrogen oxide from the exhaust gas. Na₂S.9H₂O can also be used as an inexpensive sulfur source for the synthesis of heterocyclic thiochromes.

Informações de segurança

• Pictogramas: GHS06,GHS05,GHS09
• Palavra indicadora: Danger
• Frases de perigo: H302,H311,H314,H410
• Declarações de precaução: P260 - P273 - P280 - P301 + P312 - P303 + P361 + P353 - P305 + P351 + P338
• Classificações de perigo: Acute Tox. 3 Dermal - Acute Tox. 4 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Eye Dam. 1 - Skin Corr. 1B
• Código de classe de armazenamento: 6.1D - Non-combustible acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects
• Classe de risco de água (WGK): WGK 3
• Ponto de fulgor (°F): Not applicable
• Ponto de fulgor (°C): Not applicable
• Equipamento de proteção individual: Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges