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1762-95-4 - Ammonium thiocyanate, 98+% - Ammonium rhodanide - A10632 - Alfa Aesar

A10632 Ammonium thiocyanate, 98+%

Número CAS
1762-95-4
Nombre Alternativo
Ammonium rhodanide

Tamaño Precio ($) Cantidad Disponibilidad
250g 41,60
1000g 119,00
5000g 405,00
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Ammonium thiocyanate, 98+%

MDL
MFCD00011428
EINECS
217-175-6

Propiedades químicas

Fórmula
CH4N2S
Peso molecular
76.12
Punto de fusión
147-149°
Densidad
1.305
Sensibilidad
Light Sensitive & Hygroscopic
Solubilidad
Soluble in water, ethanol, methanol, ammonia and acetone. Insoluble in chloroform and ethyl acetate.

Aplicaciones

Ammonium thiocyanate has many uses in manufacturing chemicals such as metal thiocyanates [CuSCN, Ca(SCN)2, NaSCN, KSCN] and in a number of pharmaceuticals. It is used in freezing solutions, pickling, printing, and as a corrosion inhibitor against acid gases. It is used in the photography industry as a stabilizer or an accelerator. It is also used in fertilizers, fabric dyeing, zinc coating, electroplating and as a separator of zirconium and hafnium as well as gold and iron. It is also used in analytical chemistry for titrimetric analysis and to determine the iron content by colorimetry in soft drinks.

Notas

Light sensitive and hygroscopic. Incompatible with strong oxidizing agents, strong acids and lead nitrate.

Referencias documentales

Thiocyanogen bromide can be generated in situ by reaction with bromine in acetic acid, e.g. in the thiocyanation of N,N-dimethylaniline to 4-N,N-dimethylaminophenylisothiocyanate: Org. Synth. Coll., 2, 574 (1943).

Also useful for the conversion of arylamines to thioureas either indirectly via benzoyl isothiocyanate: Org. Synth. Coll., 3, 735 (1955), or directly, but in lower yield, by reaction of ammonium thiocyanate with the amine in the presence of HCl: Org. Synth. Coll., 4, 180 (1963).

In combination with CAN in t-butanol, epoxides are converted to thiiranes in high yield: Synthesis, 821 (1996). The same conversion can also be effected in the presence of SbCl3 in acetonitrile: Indian J. Chem., 38B, 605 (1999). CAN also promotes the direct conversion of activated aryl systems, e.g. indoles, pyrroles and N,N-dialkylanilines to aryl thiocyanates: Tetrahedron Lett., 40, 1195 (1999).

Yang, X.; Fu, Y.; Zhang, X.; Dong, H.; Wang, Y.; Yue, G.; Liu, J. Chiral supramolecular nanoparticles: Liquid-Liquid Equilibria of Benzene + Cyclohexane + N,N-Dimethyl Acetamide + Ammonium Thiocyanate at 298.15 K and Atmospheric Pressure. J. Chem. Eng. Data 2015, 60 (4), 971-975.

Ichiba, M.; Sakai, J.; Doshida, T.; Takai, K. Corrosion reaction and hydrogen absorption of steel for prestressed concrete in a 20 mass% ammonium thiocyanate solution. Scripta Materialia 2015, 102, 59-62.

Indicaciones de peligro y de precaución del GHS

Indicaciones de peligro (UE): H302-H312-H332

Harmful if swallowed. Harmful in contact with skin. Harmful if inhaled.

Indicaciones de precaución: P261-P280h-P304+P340-P301+P312a-P321-P501a

Avoid breathing dust/fume/gas/mist/vapours/spray. Wear protective gloves/clothing. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. IF SWALLOWED: Call a POISON CENTER/doctor if you feel unwell. Specific treatment (see label). Dispose of contents/container in accordance with local/regional/national/international regulations.

Otras referencias

Merck
14,561
Beilstein
3595135
Código de tarifa arancelaria unificado
2842.90
TSCA
Yes
RTECS
XK7875000

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