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Sodium sulfide

Base Information Edit
  • 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
Sodium sulfide

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

Suppliers and Price of Sodium sulfide
Supply Marketing:Edit
Business phase:
The product has achieved commercial mass production*data from LookChem market partment
Manufacturers and distributors:
  • Manufacture/Brand
  • Chemicals and raw materials
  • Packaging
  • price
  • Strem Chemicals
  • Sodium sulfide, anhydrous, min. 95%
  • 5g
  • $ 65.00
  • Strem Chemicals
  • Sodium sulfide, anhydrous, min. 95%
  • 25g
  • $ 262.00
  • Sigma-Aldrich
  • Sodium sulfide
  • 50g
  • $ 512.00
  • Sigma-Aldrich
  • Sodium sulfide
  • 10g
  • $ 157.00
  • Medical Isotopes, Inc.
  • Sodium sulfide
  • 10 g
  • $ 640.00
  • American Custom Chemicals Corporation
  • SODIUM SULPHIDE 95.00%
  • 50G
  • $ 2815.40
  • American Custom Chemicals Corporation
  • SODIUM SULPHIDE 95.00%
  • 10G
  • $ 1208.51
  • Alfa Aesar
  • Sodium sulfide anhydrous
  • 100g
  • $ 723.00
  • Alfa Aesar
  • Sodium sulfide anhydrous
  • 25g
  • $ 210.00
  • Alfa Aesar
  • Sodium sulfide anhydrous
  • 5g
  • $ 52.50
Total 304 raw suppliers
Chemical Property of Sodium sulfide Edit
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): CorrosiveC,Dangerous
  • 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.
  • Uses It can be used for the production of high-grade sulfur dye and high-quality leather. It can be used in the production of high-grade paper production in the paper industry. In the dye industry, it can be used for the production of sulfur dye and is the raw material of sulfur green and sulfur blue. In the printing and dyeing industry, it can be used as a facilitator agent for dissolving sulfur dye. In the tanning industry, it can be used for the hydrolysis for hair removal of raw skin and also used for the preparation of sodium polysulfide to help accelerate soaking and softening of dry skin. It can also be used as the cooking agent of papermaking industry. In fiber textile industry, it is used for the denitrofication of artificial fiber textile as well as the reduction of nitration as well as the mordant for cotton fabric dyeing. In the pharmaceutical industry, it is mainly used for the production of antipyretic drugs such as phenacetin. In addition, it can also be used for making sodium thiosulfate, sodium hydrosulfide, and sodium polysulfide. It can be used for analysis reagents and leather depilatory It can be used for the manufacture of dyes, sulfide, and used as ore flotation agent, depilatory rawhide, and the cooking agent of paper. These yellow flakes were made by fusing sodium carbonate with sulfur. Soluble in water but less so in alcohol, sodium sulfide was lovingly called “stink” by those who used it for toning prints or intensifying negatives because of its sulfurous smell. used in sulfur dyes, used as reductant, mordant, floatation agent, depilatory for leather, digestion auxiliary in paper-making, and used in textile, pigment and rubber It is used for H2S therapy, to study its effect on the prevention of diabetes in animals. Sodium sulfide (Na2S) is used in the dye industry, in the oxidation process of gold, lead, and cooper metal ores, as a sheep dip, and to process paper.
  • Production method Pulverized coal reduction method: put mirabilite and coal powder in a mixing ratio of 100: (21 to 22.5) (weight ratio) for calcination and reduction at 800~1100 ℃. The resultant after cooling is molten into a liquid. After standing for clarification, the upper portion of the alkaline solution was concentrated to obtain a solid sulfide. The flake (or granules)-like sodium sulfide is made through the transition tank and flaking. The reaction equation is as below: Na2SO4 + 2C → Na2S + 2CO2 Absorption method: use 380~420 g/L sodium hydroxide solution to absorb H2S> 85% containing hydrogen sulfide waste gas; the resulting product was concentrated by evaporation to obtain sodium sulfide products. Its reaction equation is as below: H2S + 2NaOH → Na2S + 2H2O Barium sulfide method: use sodium sulfide and barium sulfide for cross-metathesis reaction to get precipitated barium sulfate. During this process, we can get the byproduct sodium sulfide. The reaction formula is as below: BaS + Na2SO4 → Na2S + BaSO4 ↓ Gas reduction method: in the presence of iron catalyst, put hydrogen (or carbon monoxide, coal gas, methane gas) into boiling furnace for reaction with sodium sulfate, we can obtain high-quality anhydrous granular sodium sulfide (containing Na2S: 95%~97% ). Its reaction equation is: Na2SO4 + 4CO → Na2S + 4CO2 Na2SO4 + 4H2 → Na2S + 4H2O Refined method using the byproduct (4% of sodium sulfide) during the production of precipitated barium sulfate as raw material, pump it into dual-effect evaporator for concentration into 23%; it further enters into the mixing tank for removing iron as well as carbon; pump it into the evaporator (manufactured by pure nickel material) to evaporate the lye into a certain concentration and further send it into the roller squeezing apparatus for flaking and further obtain the finished product after screening and packaging. Pulverized coal reduction method is the traditional production method for making sodium sulfide. During the manufacturing process, improve the equipment and materials and increase the iron removal process so that the products can meet standards.
  • Physical properties White cubic crystal; hygroscopic; density 1.856 g/cm3; melts at 1,172°C; soluble in water 18.6 g/100mL at 20°C and 39 g/100mL at 50°C; aqueous solutions strongly alkaline; slightly soluble in alcohol; insoluble in ether.The pentahydrate consists of flat, shiny prismatic crystals; density 1.58 g/cm3; loses three water molecules at 100°C; melts at 120°C losing all water molecules; soluble in water and alcohol; aqueous solutions strongly alkaline; insoluble in ether.The nonahydrate is a yellowish-white crystalline solid; tetragonal crystals; odor of hydrogen sulfide; the color changes on exposure to light and air, first turning to yellow and then becoming brownish-black, deliquescent; density 1.43 g/cm3; decomposes at about 50°C; very soluble in water; aqueous solution strongly alkaline; slightly soluble in alcohol; insoluble in ether.
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:
Guidance literature:
byproducts: SO2; at 590-970°C;
Guidance literature:
With S; In melt; reaction during melting;;
Guidance literature:
the reaction starts at 1100°C, in N2-stream;
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