Sodium thiocyanate

Base Information

• Chemical Name: Sodium thiocyanate
• CAS No.: 540-72-7
• Molecular Formula: NaSCN
• Molecular Weight: 81.0735
• Hs Code.: 28429011
• Mol file: 540-72-7.mol

Synonyms:Sodium Thiocyan;Sodium thiocyanide;Scyan;Natrium thiocyanat;Thiocyanate, sodium;Natriumrhodanid [German];Sodium thiocyanate solution (56% or less);Sodium rhodanate;Sodium sulfocyanate;Haimased;Thiocyanate sodium;Sodium thiocyanate solution;Sodium rhodanide;NaSCN;mono-dicalcium phosphate;

Chemical Property of Sodium thiocyanate

Chemical Property:

• Appearance/Colour: white crystalline powder
• Vapor Pressure: 2700mmHg at 25°C
• Melting Point: 287 °C (dec.)(lit.)
• Boiling Point: 146 °C at 760 mmHg
• Flash Point: 42.1 °C
• PSA: 49.09000
• Density: 1.295 g/mL at 20 °C
• LogP: 0.66498
• Storage Temp.: 2-8°C
• Sensitive.: Hygroscopic
• Solubility.: H2O: 8 M at 20 °C, clear, colorless
• Water Solubility.: 139 g/100 mL (21 ºC)

Purity/Quality:

99% ^*data from raw suppliers

Sodium thiocyanate ^*data from reagent suppliers

Safty Information:

• Pictogram(s): Xn
• Hazard Codes: Xn
• Statements: 32-52/53-20/21/22-36
• Safety Statements: 36/37-61-13-46-26

MSDS Files:

SDS file from LookChem

Total 1 MSDS from other Authors

Useful:

• Uses: Sodium thiocyanate is a valuable chemical raw material and has important uses in various sectors of the national economy. Sodium thiocyanate is mainly used as a solvent for spinning acrylic fibers, chemical analysis reagents, color film film rinses, certain plant defoliants, and airport road herbicides. Sodium thiocyanate is also used in pharmaceuticals, printing and dyeing, rubber processing, black nickel plating, and artificial mustard. Oil, etc. The main industrial production processes are: separation of sodium thiocyanate from waste liquid in coke oven gas, synthesis of sodium thiocyanate with sodium cyanide and sulfur, and production of sodium thiocyanate by metathesis reaction of ammonium thiocyanate and sodium hydroxide. The synthesis of sodium thiocyanate requires high purity HCN as raw material, which is costly and harsh. Sodium Thiocyanate is used widely in chemical synthesis as source of thiocyanate anion such as in the conversion of alkyl halides to alkylthiocyanates. manufacture of other thiocyanates, especially organic.
• Physical properties: Colorless crystals or white powder; deliquescent; melts at 287°C; very soluble in water; soluble in alcohol.

Technology Process of Sodium thiocyanate

There total 96 articles about Sodium thiocyanate 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: 94.0%

[Na(tetrahydrofuran)2][(CS2)NV(N(3,5-Me2C6H3)(t-Bu))3] complex → SV(N(3,5-Me2C6H3)(tBu))3 complex + sodium thiocyanide (540-72-7)

Guidance literature:

In tetrahydrofuran; storage at 23°C for 24 h (or at 25°C for kinetic); solvent removed in vac.; residue dissolved in Et2O; filtered through fine sintered-glass frit; dried; NMR; Kinetics;

DOI:10.1039/b111550m

Reference yield:

sodium tetrahydroborate (16940-66-2) + 2K(1+)*Zn(2+)*4NCS(1-)=K2{Zn(NCS)4} + potassium thioacyanate (333-20-0) → potassium dicyanodihydridoborate + K[HB(CN)3] + hydrogen sulfide (7783-06-4) + sodium thiocyanide (540-72-7) + zinc sulfide

Guidance literature:

at 185 ℃; for 5h; Under vacuum;

Reference yield:

sodium cyanide (773837-37-9) + sodium tetrathiocarbonate *3H2O → sodium thiocyanide (540-72-7) + sodium trithiocarbonate (534-18-9)

Guidance literature:

In water;

upstream raw materials:

carbon disulfide

CYANAMID

sodium cyanide

ammonium thiocyanate

Downstream raw materials:

(3-thiocyanatopropyl)benzene

octyl thiocyanate

4,6-diamino-1-phenyl-1H-[1,3,5]triazine-2-thione

5-amino-3-methylthio-1,2,4-thiadiazole

Refernces

• 1、 Occleshaw, V. J.. "". . . Retrieved 1932.
• 2、 Francisco, Vitor,Garcia-Rio, Luis,Antonio Moreira, Jose,Stedman, Geoffrey. "Kinetic study of an autocatalytic reaction: Nitrosation of formamidine disulfide". body text. p. 2292 - 2298. Retrieved 2009/03/11.
• 3、 Brask, Justin K.,Dura-Vila, Victor,Diaconescu, Paula L.,Cummins, Christopher C.. "Vanadium nitride functionalization and denitrogenation by carbon disulfide and dioxide". . p. 902 - 903. Retrieved 2007/10/03.