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75-05-8 - Acetonitrile, 99% - Methyl cyanide - Cyanomethane - A19862 - Alfa Aesar

A19862 Acetonitrile, 99%

Número CAS
75-05-8
Nombre Alternativo
Methyl cyanide
Cyanomethane

Tamaño Precio ($) Cantidad Disponibilidad
500ml 29,66
2500ml 87,96
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Acetonitrile, 99%

MDL
MFCD00001878
EINECS
200-835-2

Propiedades químicas

Fórmula
C2H3N
Peso molecular
41.05
Punto de fusión
-48°
Punto de ebullición
80-82°
Punto de inflamabilidad
5°(41°F)
Densidad
0.786
Índice de refracción
1.3440
Solubilidad
Miscible with water, alcohols, ethers, acetone, chloroform, carbon tetrachloride and ethylene chloride. Immiscible with saturated hydrocarbons (petroleum fractions).

Aplicaciones

Acetonitrile is utilized as a polar aprotic solvent in organic synthesis, and in the purification of butadiene. It is used in all the analytical laboratories as a major component of mobile phase in High Performance Liquid Chromatography (HPLC) and in Liquid Chromatography - Mass Spectrometry (LC-MS). It is used for the extraction of fatty acids, spinning fibers and casting and molding of plastic materials. Aqueous two-phase systems based on acetonitrile and carbohydrates play an important character in the extraction and purification of biomolecules called vanillins. It acts as a stabilizer for the chlorinated solvents, and finds use in the production of DNA oligonucleotides.

Notas

Incompatible with alkali metals, acids, bases, reducing agents and oxidizing agents. Highly flammable. Store it away from heat, sparks, and flame exposure.

Referencias documentales

Polar aprotic solvent for a wide variety of reactions, including nucleophilic substitutions, oxidations, reductions and organometallic reactions. Widely used with crown ethers for the generation of 'naked' anions from their salts; see, e.g. 18-Crown-6, A11249 . Preferred solvent for RuO4 oxidations, due to its coordinating ability; see Ruthenium(III)­ chloride hydrate, 11043 .

Undergoes the Ritter reaction with alcohols or olefins in the presence of acid to give N-substituted acetamides. For benzylic alcohols, modified conditions employing boron trifluoride etherate give high yields: Synth. Commun., 24, 601 (1994). For an example, see 4-Methyl­benzyl­ alcohol, A15315 .

For use in the mild conversion of amides to nitriles, see Benzamide, A10501 .

Cardoso, G. B.; Mourao, T.; Pereira, F. M.; Freire, M. G.; Fricks, A. T.; Soares, C. M. F.; Lima, A. S. Aqueous two-phase systems based on acetonitrile and carbohydrates and their application to the extraction of vanillin. 2013, 104 (5), 106-113.

Xu, K.; Zhu, L.; Zhang, A.; Jiang, G.; Tang, H. A peculiar cyclic voltammetric behavior of polyaniline in acetonitrile and its application in ammonia vapor sensor. 2007, 608 (2), 141-147.

Lam, T. W.; Zhang, H.; Siu, S. K. Reductions of Oxygen, Carbon Dioxide, and Acetonitrile by the Magnesium(II)/Magnesium(I) Couple in Aqueous Media: Theoretical Insights from a Nano-Sized Water Droplet. J. Phys. Chem. A 2015, 119 (12), 2780-2792.

Indicaciones de peligro y de precaución del GHS

Indicaciones de peligro (UE): H225-H302-H312-H332-H319

Highly flammable liquid and vapour. Harmful if swallowed. Harmful in contact with skin. Harmful if inhaled. Causes serious eye irritation.

Indicaciones de precaución: P210-P261-P280-P240-P241-P303+P361+P353-P305+P351+P338-P304+P340-P301+P312-P501a

Keep away from heat/sparks/open flames/hot surfaces. - No smoking. Avoid breathing dust/fume/gas/mist/vapours/spray. Wear protective gloves/protective clothing/eye protection/face protection. Ground/bond container and receiving equipment. Use explosion-proof electrical/ventilating/lighting/ equipment. IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell. Dispose of contents/container in accordance with local/regional/national/international regulations.

Otras referencias

Merck
14,70
Beilstein
741857
Clase de peligro
3
Grupo de embalaje
II
Código de tarifa arancelaria unificado
2926.90
TSCA
Yes
RTECS
AL7700000

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