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Sodium thiocyanate

Chemical Properties Uses
Sodium thiocyanate
Sodium thiocyanate structure
CAS No.
540-72-7
Chemical Name:
Sodium thiocyanate
Synonyms
scyan;haimased;usafek-t-434;SODIUM THIOCY;natriumrhodanid;SODIUM RHODANATE;SODIUM RHODANIDE;sodiumthiocyanide;thiocyanatesodium;Natriumthiocyanat
CBNumber:
CB3853771
Molecular Formula:
CNNaS
Formula Weight:
81.07
MOL File:
540-72-7.mol

Sodium thiocyanate Properties

Melting point:
287 °C (dec.)(lit.)
Density 
1.295 g/mL at 20 °C
vapor pressure 
<1 hPa (20 °C)
storage temp. 
2-8°C
solubility 
H2O: 8 M at 20 °C, clear, colorless
form 
Solid
color 
White
Odor
Odorless
PH
6-8 (100g/l, H2O, 20℃)
Water Solubility 
139 g/100 mL (21 ºC)
Sensitive 
Hygroscopic
Merck 
14,9327
BRN 
3594965
Stability:
Stable. Incompatible with acids, strong bases. May decompose on exposure to light. Contact with acid liberates highly toxic gas.
InChIKey
VGTPCRGMBIAPIM-UHFFFAOYSA-M
Indirect Additives used in Food Contact Substances
SODIUM THIOCYANATE
CAS DataBase Reference
540-72-7(CAS DataBase Reference)
FDA 21 CFR
175.105
EWG's Food Scores
1
FDA UNII
5W0K9HKA05
EPA Substance Registry System
Sodium thiocyanate (540-72-7)
SAFETY
  • Risk and Safety Statements
Symbol(GHS) 
GHS05,GHS07
Signal word  Danger
Hazard statements  H302-H312-H332-H318-H302+H312+H332-H412
Precautionary statements  P280h-P301+P312a-P304+P340-P321-P501a-P280-P305+P351+P338+P310-P261-P301+P312+P330
Hazard Codes  Xn
Risk Statements  32-52/53-20/21/22-36
Safety Statements  36/37-61-13-46-26
WGK Germany  1
RTECS  XL2275000
3
TSCA  Yes
HS Code  28429011
Toxicity LD50 orally in rats: 764 mg/kg; i.v. in mice: 484 mg/kg (Anderson, Chen)
NFPA 704
1
2 1

Sodium thiocyanate price More Price(18)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 08536 Sodium thiocyanate 2 M solution 540-72-7 1ml-f $51.7 2018-11-13 Buy
Sigma-Aldrich 251410 Sodium thiocyanate ACS reagent, ≥98.0% 540-72-7 2.5kg $575 2019-12-02 Buy
Alfa Aesar 033388 Sodium thiocyanate, ACS 98.0% min 540-72-7 500g $84.7 2020-06-24 Buy
Alfa Aesar 033388 Sodium thiocyanate, ACS 98.0% min 540-72-7 100g $37.4 2020-06-24 Buy
Sigma-Aldrich 251410 Sodium thiocyanate ACS reagent, ≥98.0% 540-72-7 100g $49.3 2019-12-02 Buy

Sodium thiocyanate Chemical Properties,Uses,Production

Chemical Properties

Sodium thiocyanate, a white rhombic system crystal, is soluble in water, ethanol, acetone; Relative density is 1.735. Melts at approx. 287℃. Decomposes on heating and under influence of light producing toxic fumes of sulfur oxides,nitrogen oxides and cyanides. Reacts violently with acids,strong bases and strong oxidants.

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.

Chemical Properties

white crystalline powder

Physical properties

Colorless crystals or white powder; deliquescent; melts at 287°C; very soluble in water; soluble in alcohol.

Uses

manufacture of other thiocyanates, especially organic.

Definition

ChEBI: An organic sodium salt which is the monosodium salt of thiocyanic acid.

Preparation

Sodium thiocyanate is prepared by boiling an aqueous solution of sodium cyanide with sulfur: NaCN + S → NaSCN.

Reactions

Sodium thiocyanate is an analytical reagent for measuring iodide. Other uses are dyeing and printing textiles, preparing thiocyanate salts, and nickel plating. Used in titrimetry.

General Description

Odorless white solid. Sinks and mixes with water.

Air & Water Reactions

Water soluble.

Reactivity Profile

Nitric acid violently oxidized a thiocyanate solution [Bretherick 1979 p. 121]. Caution should be exercised in treating a thiocyanate with an oxidizing agent such as a peroxide or chlorate as such mixtures have been known to explode. Special Hazards of Combustion Products: Irritating oxides of sulfur and nitrogen may form in fire [USCG, 1999]. Carbonyl sulfide is produced in a violent reaction by the mixture of sulfuric acid and Sodium thiocyanate.

Health Hazard

Inhalation of dust causes irritation of nose and throat. Ingestion of large doses causes vomiting, extreme cerebral excitement, convulsions, and death in 10-48 hrs.; chronic poisoning can cause flu-like symptoms, skin rashes, weakness, fatigue, vertigo, nausea, vomiting, diarrhea, confusion. Contact with eyes causes irritation. Prolonged contact with skin may produce various skin eruptions, dizziness, cramps, nausea, and mild to severe disturbance of the nervous system.

Fire Hazard

Special Hazards of Combustion Products: Irritating oxides of sulfur and nitrogen may form in fire.

Safety Profile

Poison by ingestion, intravenous, and subcutaneous routes. Moderately toxic by intraperitoneal route. Large doses taken internally cause vomiting, convulsions. Chronic poisoning is manifested by weakness, confusion, diarrhea, and skin rashes. When heated to decomposition it emits very toxic fumes of NOx, SOx, and Na2O. See also THIOCYANATES.

Purification Methods

It is recrystallised from EtOH or Me2CO, and the mother liquor is removed from the crystals by centrifugation. It is very deliquescent and should be kept in an oven at 130o before use. It can be dried in a vacuum at 120o/P2O5 [Partington & Winterton Trans Faraday Soc 30 1104 1934]. Its solubility in H2O is 113% at 10o, 178% at 46o, 225.6% at 101.4o; in MeOH 35% at 15.8o, 51% at 48o, 53.5% at 52.3o; in EtOH 18.4% at 18.8o, 24.4% at 70.9o; and in Me2CO 6.85% at 18.8o and 21.4% at 56o [Hughes & Mead J Chem Soc 2282 1929]. Sodium thiocyanate has also been recrystallised from water, acetonitrile or from MeOH using Et2O for washing, then dried at 130o, or dried under vacuum at 60o for 2days. [Strasser et al. J Am Chem Soc 107 789 1985, Szezygiel et al. J Am Chem Soc 91 1252 1987.] (The latter purification removes material reacting with iodine.) Sodium thiocyanate solutions can be freed from traces of iron by repeated batch extractions with Et2O.

Sodium thiocyanate Preparation Products And Raw materials

Raw materials

Preparation Products


Sodium thiocyanate Suppliers

Global( 295)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
SHANDONG ZHI SHANG CHEMICAL CO.LTD
+86 18953170293
+86 0531-67809011 sales@sdzschem.com CHINA 2995 58
Chongqing Chemdad Co., Ltd
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sales@chemdad.com CHINA 35434 58
Henan DaKen Chemical CO.,LTD.
+86-371-55531817
info@dakenchem.com CHINA 21838 58
Hangzhou Bayee Chemical Co., Ltd.
0086-571-86990109
0086-571-85775919 rachelhoo@bayeechem.com China 105 55
Henan Tianfu Chemical Co.,Ltd.
0371-55170693
0371-55170693 info@tianfuchem.com CHINA 22625 55
Shanghai Time Chemicals CO., Ltd.
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+86-021-57951555 jack.li@time-chemicals.com CHINA 1365 55
Hefei TNJ Chemical Industry Co.,Ltd.
86-0551-65418684 18949823763
86-0551-65418684 info@tnjchem.com China 2678 55
Shanghai Zheyan Biotech Co., Ltd.
18017610038
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career henan chemical co
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sales@coreychem.com CHINA 30043 58
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View Lastest Price from Sodium thiocyanate manufacturers

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
2020-07-09 sodium thiocyanate
540-72-7
US $1000.00 / T 1T 99% 20tons Hebei Yanxi Chemical Co., Ltd.
2020-07-03 Sodium thiocyanate
540-72-7
US $8850.00 / KG 1KG 98.0% 1T Shaanxi Dideu Medichem Co. Ltd
2018-07-23 Sodium thiocyanate
540-72-7
US $950.00 / KG 1000KG 98% 100tons career henan chemical co

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