8.45001

Acetaldehyde

Msynth^™plus

• Synonym(s): Acetaldehyde, Ethanal, Acetic Aldehyde, Ethyl Aldehyde
• Empirical Formula (Hill Notation): C₂H₄O
• CAS Number: 75-07-0
• Molecular Weight: 44.05
• MDL number: MFCD00006991
• UNSPSC Code: 12352114
• EC Index Number: 200-836-8

Properties

• vapor pressure: 1006 hPa ( 20 °C)
• Quality Level: 400
• Assay: ≥99.5% (GC)
• form: liquid
• autoignition temp.: 140 °C
• expl. lim.: 4-57 % (v/v)
• pH: 5 (20 °C, 10 g/L in H₂O)
• bp: 20.4 °C/1013 hPa
• mp: -123 °C
• transition temp: flash point -20 °C
• density: 0.78 g/cm³ at 20 °C
• storage temp.: 2-8°C
• InChI: 1S/C2H4O/c1-2-3/h2H,1H3
• InChI key: IKHGUXGNUITLKF-UHFFFAOYSA-N

Description

Analysis Note

Color (visual): colourless
Appearance of substance (visual): clear
Assay (GC, area%): ≥ 99.5 % (a/a)
Density (d 5°C/ 4°C): 0.799 - 0.801
Crotonaldehyde (GC, area%): ≤ 0.10 % (a/a)
Praldehyde (GC, area%): ≤ 0.10 % (a/a)
Acetic acid (GC, area%): ≤ 0.25 % (a/a)
Aldol (GC, area%): ≤ 0.10 % (a/a)
The analysis of residual solvents is not possible due to the physicochemical properties of the material.

Legal Information

MSYNTH is a trademark of Merck KGaA, Darmstadt, Germany

Safety Information

• Pictograms: GHS02,GHS07,GHS08
• Signal Word: Danger
• Hazard Statements: H224 - H319 - H335 - H341 - H350
• Precautionary Statements: P202 - P210 - P233 - P305 + P351 + P338 - P308 + P313 - P403 + P233
• Hazard Classifications: Carc. 1B - Eye Irrit. 2 - Flam. Liq. 1 - Muta. 2 - STOT SE 3
• Target Organs: Respiratory system
• Storage Class Code: 3 - Flammable liquids
• WGK: WGK 3
• Flash Point(C): -38.89 °C - closed cup