407410

Sigma-Aldrich

Sodium sulfide

Synonym(s):
Disodium sulfide
Linear Formula:
Na2S
CAS Number:
Molecular Weight:
78.04
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.23

Quality Level

form

solid

reaction suitability

reagent type: catalyst
core: sodium

mp

950 °C (lit.)

density

1.86 g/mL at 25 °C (lit.)

storage temp.

2-8°C

SMILES string

[Na]S[Na]

InChI

1S/2Na.S

InChI key

CXPWOVUZRAFMDA-UHFFFAOYSA-N

General description

Cubic crystals of sodium sulfide (Na2S) are extremely hygroscopic in nature and discolor on exposure to air. Na2S is soluble in water, slightly soluble in alcohol and insoluble in ether. Aqueous solutions of Na2S are strongly alkaline.

Application

Na2S is used for H2S therapy, to study its effect on the prevention of diabetes in animals.Na2S maybe used to:
  • obtain aliphatic and alicyclic γ-keto, γ,γ*-diketo, bis sulfides, thiamono-, and thiabicyclanes by alkylthiomethylation of ketones
  • improve myocardial and endothelial function in a canine model of cardiopulmonary bypass
  • to study the cytoprotective and anti-inflammatory effects of hydrogen sulfide in macrophages and mice
Na2S is widely used as a laboratory reagent in both sulfide and non metallic mineral flotation.

Packaging

10, 50 g in glass bottle

Signal Word

Danger

Supp Hazards

EUH031

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves

RIDADR

UN 1385PSN1 4.2 / PGII

WGK Germany

WGK 2

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis
Certificate of Origin
Synthesis of thiamono-and thiabicyclanes from sodium sulfide and methanethiolate
Baeva LA, et al.
Chemistry of Heterocyclic Compounds, 45(10), 1197-1201 (2009)
Infusion of sodium sulfide improves myocardial and
endothelial function in a canine model of cardiopulmonary
bypass
Szabo C, et al.
Critical Care, 11(2) (2007)
Xing H Xu et al.
Aquatic toxicology (Amsterdam, Netherlands), 150, 144-150 (2014-04-01)
In this study, immunological and histological responses of the crab Charybdis japonica to sulfide stress were investigated. The 24, 48, 72, and 96-h LC50 values of Na2S were 6.634, 4.703, 3.886, and 2.190 mM, respectively. Based on these results, the...
Haocong Dong et al.
Materials (Basel, Switzerland), 12(14) (2019-08-03)
High-throughput production of highly efficient photocatalysts for hydrogen evolution remains a considerable challenge for materials scientists. Here, we produced extremely uniform high-quality graphene and molybdenum disulfide (MoS2) nanoplatelets through the electrochemical-assisted liquid-phase exfoliation, out of which we subsequently fabricated MoS2/graphene...
Kessarin Ngamdee et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 211, 313-321 (2018-12-24)
A highly selective circular dichroism sensor based on cysteamine-capped cadmium sulfide quantum dots (Cys-CdS QDs) was successfully developed for the determination of Cu2+. Basically, the Cys-CdS QDs are not active in circular dichroism spectroscopy. However, the circular dichroism probe (DPA@Cys-CdS...
Articles
Noble-Metal Nanostructures with Controlled Morphologies
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