Cuprous thiocyanate

Cuprous thiocyanate Basic information
Product Name:Cuprous thiocyanate
Synonyms:CUPRIC THIOCYANATE;CUPROUS THIOCYANATE;COPPER SULFOCYANIDE;COPPER THIOCYANATE;COPPER(I) THIOCYANATE;COPPER (II) THIOCYANATE;copper(1+)thiocyanate;Cuprous thiocyanate (as Cu)
CAS:1111-67-7
MF:CHCuNS
MW:122.63
EINECS:214-183-1
Product Categories:paint;Inorganics
Mol File:1111-67-7.mol
Cuprous thiocyanate Structure
Cuprous thiocyanate Chemical Properties
Melting point 1084°C
density 2.84
vapor pressure 0Pa at 20-50℃
storage temp. Sealed in dry,Room Temperature
form Powder
color Off-white
Specific Gravity2.843
Water Solubility Practically insoluble in water, alcohol. Soluble in NH{4}OH, ether
Merck 14,2669
Solubility Product Constant (Ksp)pKsp: 12.75
Exposure limitsACGIH: TWA 1 mg/m3
NIOSH: IDLH 100 mg/m3; TWA 1 mg/m3
Stability:Stable.
InChIKeyPDZKZMQQDCHTNF-UHFFFAOYSA-M
CAS DataBase Reference1111-67-7(CAS DataBase Reference)
EPA Substance Registry SystemCuprous thiocyanate (1111-67-7)
Safety Information
Hazard Codes Xn,N
Risk Statements 20/21/22-32-50/53-52/53
Safety Statements 13-60-61-46-36/37
RIDADR UN 3077 9/PG 3
WGK Germany 3
RTECS GL8955000
TSCA Yes
HazardClass 9
HS Code 2842908080
MSDS Information
ProviderLanguage
SigmaAldrich English
ALFA English
Cuprous thiocyanate Usage And Synthesis
Chemical PropertiesCopper(I) thiocyanate, CuSCN, [1111-67-7], MW 121.62, is a white powder when pure, but often the material of commerce is yellow. It is soluble in ammonia solution, alkali thiocyanate solutions, and diethyl ether, but it is only slightly soluble in water and dilute mineral acids. It is stable in air in the absence of moisture, but it slowly decomposes in the presence of moisture in air. It is used as an antifouling pigment.
CharacteristicsCopper thiocyanate (CuSCN) is also a wide bandgap (3.6?eV) semiconductor and has a work function of about ?5.3?eV. The conductivity ranges between 10-2 and 10-3 S?cm-1, good stability, shows good transparency throughout the visible and near infrared spectrum. It has good chemical stability. It can be deposited through a solution processing approach at low temperature, making it compatible with flexible substrates. By using copper thiocyanate (CuSCN) instead of P3HT as the HTL, a higher device PCE was achieved. 
UsesThe product can be prepared from Cu(CH3COO)2·H2O, AgNO3, NH4NCS and im(im = imidazole). The structure and optical properties were reported. It is an air- and light-stable source of Cu(I).
UsesIn marine antifouling paints; in primer compositions for explosives industry.
UsesIt is used as flame retardant. It is a good inorganic pigment, and is used as the antifouling paint for protecting the underwater surfaces of ships against vegetation. Manufacturing industrial chemicals, pharmaceuticals and also used in freezing solutions, electroplating , steel picking, printing, and corrosion inhibitor against acid gases.
PreparationCopper(I) thiocyanate is prepared by the reaction of alkali metal thiocyanates with copper(I) chloride at 8090°C or by the reaction of copper(II) sulfate solutions with alkali metal thiocyanate in the presence of sulfite. It can also be prepared by precipitation from copper(II) salt solutions with hydrogen thiocyanate.
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Potential ExposureUsed as a microbiocide and algaecide in antifouling paints. Used as a laboratory chemical and for making other chemicals. Some formulations may be designated Restricted Use Pesticide (RUP).
ShippingUN3439 Nitriles, solid, toxic, n.o.s., Hazard Class: 6.1; Labels: 6.1-Poisonous materials, Technical Name Required
Structure and conformationAt least two polymorphs of cuprous thiocyanate have been characterized by X-ray crystallography. They both feature copper(I) in a characteristic tetrahedral coordination geometry. The sulfur end of the SCN- ligand is triply bridging so that the coordination sphere for copper is CuS3N.
IncompatibilitiesIncompatible with oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explosions. Keep away from alkaline materials, strong bases, strong acids, oxoacids, epoxides
Waste DisposalCopper-containing soluble wastes can be concentrated through the use of ion exchange, reverse osmosis, or evaporators to the point where copper can be electrolytically removed and sent to a reclaiming firm. If recovery is not feasible, the copper can be precipitated through the use of caustics and the sludge deposited in a chemical waste landfill. Copper-containing wastes can be concentrated to the point where copper can be electrolytically removed and reclaimed. If recovery is not feasible, the copper can be precipitated by alkali; the cyanide destroyed by alkaline oxidation yielding a sludge which can be sent to a chemical waste landfill. In accordance with 40CFR165, follow recommendations for the disposal of pesticides and pesticide containers. Must be disposed properly by following package label directions or by contacting your local or federal environmental control agency, or by contacting your regional EPA office
Cuprous thiocyanate Preparation Products And Raw materials
Raw materialsCopper(II) sulfate-->Sodium thiocyanate
Sodium thiocyanate Copper(I) Cyanide Guanidine thiocyanate Cuprous thiocyanate Erythromycin thiocyanate ISOTHIOCYANATE, POLYMER-BOUND, 200-400 Copper Fluorescein isothiocyanate Thiocyanic acid thiocyanate CUPROUS THIOCYANATE,COPPER(I) THIOCYANATE,Copper(I)thiocyanate,99% Ammonium thiocyanate CUPRIC THIOCYANATE GOLD COAST SOLUTION NO 1 Potassium thiocyanate Allyl isothiocyanate ERYTHORMYCIN THIOCYANATE Copper oxychloride

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