431648

Sodium sulfide nonahydrate

≥99.99% trace metals basis

• 동의어(들): Disodium sulfide nonahydrate, Sodium sulfide enneahydrate
• Linear Formula: Na₂S·9H₂O
• CAS Number: 1313-84-4
• Molecular Weight: 240.18
• EC Number: 215-211-5
• MDL number: MFCD00149184
• UNSPSC 코드: 12352300
• PubChem Substance ID: 24867038
• NACRES: NA.23

속성

• Quality Level: 100
• 분석: ≥99.99% trace metals basis
• 형태: crystals and lumps
• 반응 적합성: reagent type: catalyst; core: sodium
• 불순물: <100 ppm total metallic impurities
• 음이온 미량물: SO₃^2- and S₂O₃^2-: ≤0.1%
• 양이온 미량물: Fe:, passes test; NH₄⁺: ≤0.005%
• 저장 온도: 2-8°C
• SMILES string: O.O.O.O.O.O.O.O.O.[Na]S[Na]
• InChI: 1S/2Na.9H2O.S/h;;9*1H2;
• InChI key: UIINQVYGFKNSPA-UHFFFAOYSA-N

설명

일반 설명

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.

애플리케이션

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.

안전성 정보

• 픽토그램: GHS06,GHS05,GHS09
• 신호어: Danger
• 유해 및 위험 성명서: H302,H311,H314,H410
• 예방조치 성명서: P260 - P273 - P280 - P301 + P312 - P303 + P361 + P353 - P305 + P351 + P338
• Hazard Classifications: Acute Tox. 3 Dermal - Acute Tox. 4 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Eye Dam. 1 - Skin Corr. 1B
• Storage Class Code: 6.1D - Non-combustible acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects
• WGK: WGK 3
• Flash Point (°F): Not applicable
• Flash Point (°C): Not applicable
• 개인 보호 장비: Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges