431648

Sodium sulfide nonahydrate

≥99.99% trace metals basis

• Synonim(y): Disodium sulfide nonahydrate, Sodium sulfide enneahydrate
• Wzór liniowy: Na₂S·9H₂O
• Numer CAS: 1313-84-4
• Masa cząsteczkowa: 240.18
• Numer WE: 215-211-5
• Numer MDL: MFCD00149184
• Kod UNSPSC: 12352300
• Identyfikator substancji w PubChem: 24867038
• NACRES: NA.23

Właściwości

• Poziom jakości: 100
• Próba: ≥99.99% trace metals basis
• Postać: crystals and lumps
• przydatność reakcji: reagent type: catalyst; core: sodium
• zanieczyszczenia: <100 ppm total metallic impurities
• ślady anionów: SO₃^2- and S₂O₃^2-: ≤0.1%
• ślady kationów: Fe:, passes test; NH₄⁺: ≤0.005%
• temp. przechowywania: 2-8°C
• ciąg SMILES: O.O.O.O.O.O.O.O.O.[Na]S[Na]
• InChI: 1S/2Na.9H2O.S/h;;9*1H2;
• Klucz InChI: UIINQVYGFKNSPA-UHFFFAOYSA-N

Opis

Opis ogólny

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.

Zastosowanie

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.

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Informacja o środkach bezpieczeństwa

• Piktogramy: GHS06,GHS05,GHS09
• Hasło ostrzegawcze: Danger
• Zwroty wskazujące rodzaj zagrożenia: H302,H311,H314,H410
• Zwroty wskazujące środki ostrożności: P260 - P273 - P280 - P301 + P312 - P303 + P361 + P353 - P305 + P351 + P338
• Klasyfikacja zagrożeń: Acute Tox. 3 Dermal - Acute Tox. 4 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Eye Dam. 1 - Skin Corr. 1B
• Kod klasy składowania: 6.1D - Non-combustible acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects
• Klasa zagrożenia wodnego (WGK): WGK 3
• Temperatura zapłonu (°F): Not applicable
• Temperatura zapłonu (°C): Not applicable
• Środki ochrony indywidualnej: Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges