00070

Acetaldehído

puriss. p.a., anhydrous, ≥99.5% (GC)

• Sinónimos: Etanal
• Fórmula lineal: CH₃CHO
• Número de CAS: 75-07-0
• Peso molecular: 44.05
• Beilstein: 505984
• Número CE: 200-836-8
• Número MDL: MFCD00006991
• Código UNSPSC: 12352100
• eCl@ss: 39021102
• ID de la sustancia en PubChem: 329746997
• NACRES: NA.21

Propiedades

• origen biológico: synthetic
• Nivel de calidad: 100
• grado: anhydrous; puriss. p.a.
• densidad de vapor: 1.52 (vs air)
• presión de vapor: 14.63 psi ( 20 °C)
• Ensayo: ≥99.5% (GC)
• Formulario: liquid
• temp. de autoignición: 365 °F
• calidad: anhydrous
• lim. expl.: 60 %
• impurezas: ≤0.5% free acid (as CH₃COOH)
• residuo de evap.: ≤0.002%
• índice de refracción: n20/D 1.332 (lit.); n20/D 1.332
• bp: 21 °C (lit.)
• mp: −125 °C (lit.)
• densidad: 0.785 g/mL at 25 °C (lit.)
• trazas de catión: Al: ≤0.5 mg/kg; Ba: ≤0.1 mg/kg; Bi: ≤0.1 mg/kg; Ca: ≤0.5 mg/kg; Cd: ≤0.05 mg/kg; Co: ≤0.02 mg/kg; Cr: ≤0.02 mg/kg; Cu: ≤0.02 mg/kg; Fe: ≤0.5 mg/kg; K: ≤0.5 mg/kg; Li: ≤0.1 mg/kg; Mg: ≤0.1 mg/kg; Mn: ≤0.02 mg/kg; Mo: ≤0.1 mg/kg; Na: ≤0.5 mg/kg; Ni: ≤0.02 mg/kg; Pb: ≤0.1 mg/kg; Sr: ≤0.1 mg/kg; Zn: ≤0.1 mg/kg
• grupo funcional: aldehyde
• cadena SMILES: CC=O
• temp. de almacenamiento: 2-8°C
• InChI: 1S/C2H4O/c1-2-3/h2H,1H3
• Clave InChI: IKHGUXGNUITLKF-UHFFFAOYSA-N

Descripción

Descripción general

Acetaldehyde is an organic colorless flammable liquid. It can be produced by hydration of acetylene and by catalytic oxidation of ethyl alcohol. It is mainly used in manufacturing acetic acid.

Mechanism of the thermal decomposition of acetaldehyde has been reported. It is a product of ethanol metabolism in the liver, binds covalently to various proteins, thereby alters the liver function and structure. The aldol condensation of acetaldehyde and heptanal in the presence of hydrotalcite-type catalysts has been described.

Aplicación

Acetaldehyde may be used for the enzymatic synthesis of fatty acids.

It was used in the plasma polymerization for deposition of reactive aldehyde groups onto substrate, in a study to produce fibrous biomaterials with cell adhesive and also repulsive capability in biomedical applications. It was also used as calibration standard during determination of acetone, acetaldehyde, ethanol, and methanol in different human matrices, such as whole blood, vitreous humour, and urine using gas chromatography with flame ionization detection method (GC–FID).

Precaución

forms easily paraldehyde

Información de seguridad

• Pictogramas: GHS02,GHS08,GHS07
• Palabra de señalización: Danger
• Frases de peligro: H224,H319,H335,H341,H350
• Consejos de prudencia: P202 - P210 - P233 - P305 + P351 + P338 - P308 + P313 - P403 + P233
• Clasificaciones de peligro: Carc. 1B - Eye Irrit. 2 - Flam. Liq. 1 - Muta. 2 - STOT SE 3
• Órganos de actuación: Respiratory system
• Código de clase de almacenamiento: 3 - Flammable liquids
• Clase de riesgo para el agua (WGK): WGK 3
• Punto de inflamabilidad (°F): -38.0 °F - closed cup
• Punto de inflamabilidad (°C): -38.89 °C - closed cup
• Equipo de protección personal: Eyeshields, Faceshields, Gloves