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8.45001

Acetaldehyde

Msynth™plus

Synonym(s):

Acetaldehyde, Ethanal, Acetic Aldehyde, Ethyl Aldehyde

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About This Item

Empirical Formula (Hill Notation):
C2H4O
CAS Number:
75-07-0
Molecular Weight:
44.05
EC Index Number:
200-836-8
UNSPSC Code:
12352114
MDL number:
MFCD00006991
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vapor pressure

1006 hPa ( 20 °C)

Quality Segment

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

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

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Signal Word

Danger

Hazard Classifications

Carc. 1B - Eye Irrit. 2 - Flam. Liq. 1 - Muta. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class

3 - Flammable liquids

WGK

WGK 3

Flash Point (°C)

-38.89 °C - closed cup

Flash Point (°F)

-38.0 °F - closed cup

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