Skip to Content
Merck
All Photos(3)

Documents

407410

Sigma-Aldrich

Sodium sulfide

Synonym(s):

Disodium sulfide

Sign Into View Organizational & Contract Pricing
All Photos(3)

About This Item

Linear Formula:
Na2S
CAS Number:
1313-82-2
Molecular Weight:
78.04
EC Number:
215-211-5
MDL number:
MFCD00003498
UNSPSC Code:
12352300
PubChem Substance ID:
24865451
NACRES:
NA.23

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

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.

Features and Benefits

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

Signal Word

Danger

Hazard Classifications

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

Supplementary Hazards

EUH031

Storage Class Code

4.2 - Pyrophoric and self-heating hazardous materials

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

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
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)
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
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
View All Related Papers

Articles

Controlled Noble-Metal Nanostructures

Noble-metal nanostructures find diverse applications from catalysis to biomedical research, leveraging surface properties in various fields.

Controlled Noble-Metal Nanostructures

Noble-metal nanostructures find diverse applications from catalysis to biomedical research, leveraging surface properties in various fields.

Controlled Noble-Metal Nanostructures

Noble-metal nanostructures find diverse applications from catalysis to biomedical research, leveraging surface properties in various fields.

Controlled Noble-Metal Nanostructures

Noble-metal nanostructures find diverse applications from catalysis to biomedical research, leveraging surface properties in various fields.

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service