Ammonium thiocyanate

• Catalog No.: A10632
• CAS Number: 1762-95-4
• M. F.: CH4N2S
• M. W.: 76.12086
• Purity: 98+%

SYNONYMS

• Title: 硫氰酸铵
• IUPAC name: ammonium cyanosulfanide
• IUPAC Traditional name: ammonium thiocyanate
• Synonyms: Ammonium rhodanide

DATABASE IDS

• CAS Number: 1762-95-4
• Merck Index: 14561
• MDL Number: MFCD00011428
• Beilstein Number: 3595135
• EC Number: 217-175-6

PROPERTIES

• Purity: 98+%
• Density: 1.305
• Melting Point: 147-149°C
• GHS Hazard statements: H311-H302-H332-H402-H412
• European Hazard Symbols: X
• GHS Precautionary statements: P261-P280-P361-P302+P352-P405-P501A
• Risk Statements: 20/21/22-32-52/53
• RTECS: XK7875000
• Safety Statements: 13-36/37-46-61
• Storage Warning: Light Sensitive & Hygroscopic
• TSCA Listed: 是

REFERENCES

• 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).
• 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).