431648

Sodium sulfide nonahydrate

≥99.99% trace metals basis

• Sinónimos: Disodium sulfide nonahydrate, Sodium sulfide enneahydrate
• Fórmula lineal: Na₂S·9H₂O
• Número de CAS: 1313-84-4
• Peso molecular: 240.18
• Número CE: 215-211-5
• Número MDL: MFCD00149184
• Código UNSPSC: 12352300
• ID de la sustancia en PubChem: 24867038
• NACRES: NA.23

Propiedades

• grado: for analytical purposes
• Ensayo: ≥99.99% trace metals basis
• Formulario: crystals and lumps
• idoneidad de la reacción: reagent type: catalyst; core: sodium
• impurezas: <100 ppm total metallic impurities
• trazas de anión: SO₃^2- and S₂O₃^2-: ≤0.1%
• trazas de catión: Fe:, passes test; NH₄⁺: ≤0.005%
• temp. de almacenamiento: 2-8°C
• cadena SMILES: O.O.O.O.O.O.O.O.O.[Na]S[Na]
• InChI: 1S/2Na.9H2O.S/h;;9*1H2;
• Clave InChI: UIINQVYGFKNSPA-UHFFFAOYSA-N

Descripción

Descripción general

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.

Aplicación

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.

Información de seguridad

• Pictogramas: GHS06,GHS05,GHS09
• Palabra de señalización: Danger
• Frases de peligro: H302,H311,H314,H410
• Consejos de prudencia: P260 - P273 - P280 - P301 + P312 - P303 + P361 + P353 - P305 + P351 + P338
• Clasificaciones de peligro: Acute Tox. 3 Dermal - Acute Tox. 4 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Eye Dam. 1 - Skin Corr. 1B
• Código de clase de almacenamiento: 6.1D - Non-combustible acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects
• Clase de riesgo para el agua (WGK): WGK 3
• Punto de inflamabilidad (°F): Not applicable
• Punto de inflamabilidad (°C): Not applicable
• Equipo de protección personal: Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges