Sodium sulfide

Base Information

• Chemical Name: Sodium sulfide
• CAS No.: 1313-82-2
• Deprecated CAS: 113584-74-0,1447694-91-8,2694817-63-3
• Molecular Formula: Na₂S
• Molecular Weight: 78.0455
• Hs Code.: 28301010
• European Community (EC) Number: 215-211-5
• ICSC Number: 1047
• NSC Number: 41874
• UN Number: 1385
• Wikipedia: Sodium monosulfide,Sodium sulfide,Sodium_sulfide
• RXCUI: 1293719
• Mol file: 1313-82-2.mol

Synonyms:Actisoufre;Na2S;natrum sulphuratum;sodium monosulfide;sodium monosulfide nonahydrate;sodium monosulphide;sodium monosulphide nonahydrate;sodium sulfide;sodium sulfide anhydrous;sodium sulfide nonahydrate;sodium sulphide anhydrous

Chemical Property of Sodium sulfide

Chemical Property:

• Appearance/Colour: crystals of varied colour, with a repulsive odour
• Melting Point: 950 ºC
• Boiling Point: 174oC
• PSA: 25.30000
• Density: 1.86 g/cm³
• LogP: -0.53540
• Storage Temp.: Refrigerator (+4°C)
• Sensitive.: Hygroscopic
• Solubility.: H2O: 0.1 g/mL, clear, colorless
• Water Solubility.: 186 g/L (20 ºC)
• Hydrogen Bond Donor Count: 1
• Hydrogen Bond Acceptor Count: 1
• Rotatable Bond Count: 0
• Exact Mass: 78.95943477
• Heavy Atom Count: 3
• Complexity: 2.8
• Transport DOT Label: Spontaneously Combustible

Purity/Quality:

60%, ^*data from raw suppliers

Sodium sulfide, anhydrous, min. 95% ^*data from reagent suppliers

Safty Information:

• Pictogram(s): C,N
• Hazard Codes: C,N,Xn
• Statements: 31-34-50-22
• Safety Statements: 26-45-61-36/37/39

MSDS Files:

SDS file from LookChem

Total 1 MSDS from other Authors

Useful:

• Chemical Classes: Other Classes -> Sulfur Compounds
• Canonical SMILES: [Na+].[Na+].[SH-]
• Recent ClinicalTrials: Pharmacokinetic Assessment of Sodium Sulfide in Subjects With Impaired Renal Function
• Inhalation Risk: A harmful concentration of airborne particles can be reached quickly when dispersed.
• Effects of Short Term Exposure: The substance is corrosive to the eyes, skin and respiratory tract. Corrosive on ingestion.
• Synthesis and Application in Silver Nanocube Production: Addition of trace amounts of Na2S or NaHS drastically improves the production rate of silver nanocubes. Sulfide species interact strongly with silver, facilitating the formation of Ag2S nanoparticles.
• Utilization in NOx Reduction: Na2S can effectively reduce NO2 to N2, converting it into nontoxic sodium sulfate (Na2SO4). Also capable of removing SO2 effectively, enabling simultaneous treatment of NOx and SO2 in exhaust gases.
• Chemical Reactions and Applications: Reacts rapidly with di(1-alkynyl) sulfoxides and sulfones to form six-membered heterocyclic compounds. Used in the formation of novel heterocyclic systems.
• Industrial and Chemical Applications: Used in various industries such as pulp and paper, water treatment, textile, and chemical manufacturing.; Water-soluble and creates strongly alkaline solutions, with technical grades exhibiting coloration due to polysulfides.
• Biological Effects and Medical Applications: Na2S and hydrogen sulfide (H2S) have been studied for their anti-inflammatory and anti-apoptotic effects in some studies.; Na2S shown to protect against cardiac ischemia or reperfusion injury by up-regulating antioxidant and detoxification proteins.; Potential role in modulating the expression of Nrf2-dependent antioxidant genes to protect against oxidative stress.

Technology Process of Sodium sulfide

There total 211 articles about Sodium sulfide which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield:

iron sulfide + sodium sulfate (7757-82-6) → iron(II) oxide (1345-25-1) + sodium sulfide (1313-82-2)

Guidance literature:

byproducts: SO2; at 590-970°C;

Reference yield:

sodium chloride (7647-14-5) → disulfur dichloride (10025-67-9) + sodium sulfide (1313-82-2)

Guidance literature:

With S; In melt; reaction during melting;;

Reference yield:

iron (7439-89-6) + sodium sulfate (7757-82-6) → iron(II) oxide (1345-25-1) + sodium sulfide (1313-82-2)

Guidance literature:

the reaction starts at 1100°C, in N2-stream;

upstream raw materials:

sodium

sulfur

hydrogen sulfide

sodium trithiocarbonate

Downstream raw materials:

sodium disulfide

sodium trisulfide

7-Hydroxy-2-hydroxymethyl-benzofuran

2-amino-4-methylthiophene-3-carboxylic acid ethyl ester

Refernces

Chalcogenopyranones from disodium chalcogenide additions to 1,4- pentadiyn-3-ones. The role of enol ethers as intermediates

10.1002/jhet.5570360322

The research focuses on the synthesis of 4H-chalcogenopyran-4-ones using disodium chalcogenides and enol ethers derived from 1,4-pentadiyn-3-ones. Key chemicals involved include diynones such as 1,5-diphenyl-1,4-pentadiyn-3-one (2a), 1,5-di-tert-butyl-1,4-pentadiyn-3-one (2b), and 1,5-di-(4-N,N-dimethylaminophenyl)-1,4-pentadiyn-3-one (2c), which are reacted with disodium chalcogenides like disodium sulfide, disodium selenide, and disodium telluride. Enol ethers 9 are formed as intermediates from the addition of ethanol to diynones in sodium ethoxide/ethanol, and these enol ethers react with disodium chalcogenides to yield 2,6-disubstituted chalcogenopyranones with high selectivity. The study also examines the addition of hydrogen sulfide to diynones and the role of intermediates in the formation of chalcogenopyranones and dihydrochalcogenophenes. The research aims to improve the synthesis of chalcogenopyranones, which have applications in various fields including as electron-accepting materials in electrophotography and as heat-generating elements in optical recording.

Synthesis of (E,E)-Thiacyclodeca-4,7-diene and of Its 3-Methyl Derivative from D-Mannitol. Stereochemical and Conformational Behavior

10.1021/jo00139a031

The research explores the synthesis and properties of (E,E)-thiacyclodeca-4,7-diene (1) and its 3-methyl derivative (14) using D-mannitol as the starting material. The purpose of the study was to investigate the stereochemical and conformational behavior of these chiral compounds, which have interesting geometrical properties making them good candidates for such studies. The synthesis involved a series of stereospecific reactions, including the use of enantiomerically pure D-mannitol, (R,R)-cis-2,6-dioxabicyclo[3.3.0]octane (2), (R,R)-1,6-dibromohexane-3,4-diol (3), and various reagents like sodium sulfide, vinylmagnesium bromide, and t-BuOK. The key conclusion was that the synthesized compounds undergo rapid enantiomerization, with an energy barrier of approximately 11 kcal/mol, making them optically inactive. The study also revealed that the flipping motion of the sulfur atom has an energy barrier of around 6 kcal/mol. These findings highlight the dynamic behavior of these compounds and provide insights into their conformational motions.