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431648 Sigma-Aldrich

Sodium sulfide nonahydrate

≥99.99% trace metals basis

Synonym: Disodium sulfide nonahydrate, Sodium sulfide enneahydrate

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Properties

Related Categories Catalysis and Inorganic Chemistry, Chalcogenides, Chemical Synthesis, Materials Science, Metal and Ceramic Science,
Quality Level   100
assay   ≥99.99% trace metals basis
form   crystals and lumps
reaction suitability   reagent type: catalyst
core: sodium
impurities   <100 ppm total metallic impurities
anion traces   SO32- and S2O32-: ≤0.1%
cation traces   Fe:, passes test
  NH4+: ≤0.005%
storage temp.   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

Description

Application

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.

Packaging

50, 250 g in poly bottle

Safety & Documentation

Safety Information

Symbol 
Signal word 
Danger
Hazard statements 
RIDADR 
UN 1849 8 / PGII
WGK Germany 
WGK 2
Flash Point(F) 
Not applicable
Flash Point(C) 
Not applicable

Documents

Certificate of Analysis (COA)

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Certificate of Origin (COO)

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Protocols & Articles
Peer-Reviewed Papers
15

References

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