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

A10632 Ammonium thiocyanate, 98+%

CAS 번호
1762-95-4
동의어
Ammonium rhodanide

사이즈 가격 ($) 수량 재고 여부
250g 41.60
1000g 119.00
5000g 405.00
장바구니에 추가 대량 견적에 추가 항목 보기

Ammonium thiocyanate, 98+%

MDL
MFCD00011428
EINECS
217-175-6

화학적 특성

화학식
CH4N2S
화학 식량
76.12
융점
147-149°
밀도
1.305
감도
Light Sensitive & Hygroscopic
용해도
Soluble in water, ethanol, methanol, ammonia and acetone. Insoluble in chloroform and ethyl acetate.

용도

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.

참고

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

참조 문헌

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.

GHS 해저드 및 주의 설명서

해저드 설명서 (EU): H302-H312-H332

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

주의 설명서: 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.

기타 참조

Merck
14,561
바일슈타인
3595135
통합 관세 코드
2842.90
TSCA(독성물질규제법)"
Yes
RTECS(화학물질 독성 등록)
XK7875000

권장

  • A14320

    N-Iodosuccinimide, 97%
  • A15235

    (1-Hexadecyl)trimethylammonium bromide, 98%
  • A16201

    Cobalt(II) sulfate heptahydrate, 98%
  • L02809

    Tetra-n-butylammonium hydroxide, 40% w/w aq. soln.
  • 36418

    Cobalt(II) nitrate hexahydrate, ACS, 98.0-102.0%

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