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407410

Sigma-Aldrich

Sodium sulfide

Synonyme(s) :

Disodium sulfide

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About This Item

Formule linéaire :
Na2S
Numéro CAS:
1313-82-2
Poids moléculaire :
78.04
Numéro CE :
215-211-5
Numéro MDL:
MFCD00003498
Code UNSPSC :
12352300
ID de substance PubChem :
24865451
Nomenclature NACRES :
NA.23

Forme

solid

Pertinence de la réaction

reagent type: catalyst
core: sodium

Pf

950 °C (lit.)

Densité

1.86 g/mL at 25 °C (lit.)

Température de stockage

2-8°C

Chaîne SMILES 

[Na]S[Na]

InChI

1S/2Na.S

Clé InChI

CXPWOVUZRAFMDA-UHFFFAOYSA-N

Description générale

Anhydrous sodium sulfide 98% is a chemical compound that appears as a yellow-to-white, crystalline solid with a strong odor of hydrogen sulfide. It is a highly reactive inorganic chalcogenide that acts as a reducing agent, making it an essential reagent in many chemical processes. Anhydrous sodium sulfide decomposes in water and forms an alkaline solution. Our anhydrous sodium sulfide is rigorously dried for use in applications sensitive to moisture or water.

Application

Anhydrous sodium sulfide 98% is commonly used in the pulp and paper industry for the manufacture of paper products. It is used as a bleaching agent and for the removal of lignin from wood pulp. In the textile industry, it is used as a dyeing agent for cotton and wool fibers. In the leather industry, anhydrous sodium sulfide 98% is used for the removal of hair and feathers from animal hides, and as a tanning agent. Additionally, it is used in the production of sulfur dyes, pesticides, and pharmaceuticals. Its reducing properties also make it useful in the synthesis of organic compounds, such as thioesters and thioketones. Anhydrous sodium sulfide 98% is also widely used in mineral floatation processes, where it helps separate valuable minerals from their ores.

Caractéristiques et avantages

  • Quality Guaranteed - Quality-tested to be 98% pure for consistent results.
  • Available to scale up: bulk and pilot scale

Mention d'avertissement

Danger

Classification des risques

Acute Tox. 3 Dermal - Acute Tox. 3 Oral - Aquatic Acute 1 - Eye Dam. 1 - Met. Corr. 1 - Self-heat. 1 - Skin Corr. 1B

Risques supp

EUH031

Code de la classe de stockage

4.2 - Pyrophoric and self-heating hazardous materials

Classe de danger pour l'eau (WGK)

WGK 3

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

Équipement de protection individuelle

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges

Certificats d'analyse (COA)

Recherchez un Certificats d'analyse (COA) en saisissant le numéro de lot du produit. Les numéros de lot figurent sur l'étiquette du produit après les mots "Lot" ou "Batch".

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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
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)
Synthesis of thiamono-and thiabicyclanes from sodium sulfide and methanethiolate
Baeva LA, et al.
Chemistry of Heterocyclic Compounds, 45(10), 1197-1201 (2009)
Callum S Foden et al.
Science (New York, N.Y.), 370(6518), 865-869 (2020-11-14)
Peptide biosynthesis is performed by ribosomes and several other classes of enzymes, but a simple chemical synthesis may have created the first peptides at the origins of life. α-Aminonitriles-prebiotic α-amino acid precursors-are generally produced by Strecker reactions. However, cysteine's aminothiol
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
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