431648

Sodium sulfide nonahydrate

≥99.99% trace metals basis

• Szinonimák: Disodium sulfide nonahydrate, Sodium sulfide enneahydrate
• Lineáris képlet: Na₂S·9H₂O
• CAS-szám: 1313-84-4
• Molekulatömeg: 240.18
• EC-szám: 215-211-5
• MDL-szám: MFCD00149184
• UNSPSC kód: 12352300
• PubChem Substance ID: 24867038
• NACRES: NA.23

Tulajdonságok

• Minőségi szint: 100
• Teszt: ≥99.99% trace metals basis
• form: crystals and lumps
• reakcióalkalmasság: reagent type: catalyst; core: sodium
• szennyeződések: <100 ppm total metallic impurities
• anion nyomok: SO₃^2- and S₂O₃^2-: ≤0.1%
• kation nyomok: Fe:, passes test; NH₄⁺: ≤0.005%
• tárolási hőmérséklet: 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;
• Nemzetközi kémiai azonosító kulcs: UIINQVYGFKNSPA-UHFFFAOYSA-N

Leírás

Általános leírás

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.

Alkalmazás

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.

Biztonsági adatok

• Piktogramok: GHS06,GHS05,GHS09
• Figyelmeztetés: Danger
• Figyelmeztető mondatok: H302,H311,H314,H410
• Óvintézkedésre vonatkozó mondatok: P260 - P273 - P280 - P301 + P312 - P303 + P361 + P353 - P305 + P351 + P338
• Veszélyességi osztályok: Acute Tox. 3 Dermal - Acute Tox. 4 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Eye Dam. 1 - Skin Corr. 1B
• Tárolási osztály kódja: 6.1D - Non-combustible acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects
• WGK: WGK 3
• Lobbanási pont (F): Not applicable
• Lobbanási pont (C): Not applicable
• Egyéni védőeszköz: Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges