Merck
  • 800004
All Photos(1)

8.00004

Sigma-Aldrich

Acetaldehyde

for synthesis

All Photos(1)
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
EC Index Number:
200-836-8

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vapor pressure

1006 hPa ( 20 °C)

Quality Level

200

assay

≥99% (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

General description

Acetaldehyde is an organic compound and one of the significant aldehydes. Acetaldehyde is employed to produce acetic anhydride, acetic acid, cellulose acetate, pyridine derivatives, pentaerythritol, peracetic acid, and terephthalic acid. Furthermore, it is used as a solvent.

Application

Acetaldehyde is used as a raw material to synthesis acetal(1,1-dimetoxyethane) using Smopex 101 fibres catalyst.

Packaging

500 ml in Glass Bottle in Metal can
1 , 2.5 , 2.5 l
500 ml
20, 600 kg

Analysis Note

Assay (GC, area%): ≥ 99.0 % (a/a)
Density (d 5°C/ 4°C): 0.798 - 0.801

Signal Word

Danger

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(F)

-38.0 °F - closed cup

Flash Point(C)

-38.89 °C - closed cup

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

EU REACH Annex XVII (Restriction List)

CAS No.

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