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Sigma-Aldrich

Acetaldehyde

for synthesis

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Synonym(s):
Acetaldehyde, Ethanal, Acetic Aldehyde, Ethyl Aldehyde
Empirical Formula (Hill Notation):
C2H4O
CAS Number:
Molecular Weight:
44.05
MDL number:
EC Index Number:
200-836-8

vapor pressure

1006 hPa ( 20 °C)

Quality Level

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

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This Item
506788W20033600070
Acetaldehyde for synthesis

8.00004

Acetaldehyde

Acetaldehyde PESTANAL®, analytical standard

506788

Acetaldehyde

Acetaldehyde natural, FG

W200336

Acetaldehyde

Acetaldehyde puriss. p.a., anhydrous, ≥99.5% (GC)

00070

Acetaldehyde

Quality Level

200

Quality Level

100

Quality Level

400

Quality Level

100

form

liquid

form

-

form

liquid

form

liquid

vapor pressure

1006 hPa ( 20 °C)

vapor pressure

14.63 psi ( 20 °C)

vapor pressure

14.63 psi ( 20 °C)

vapor pressure

14.63 psi ( 20 °C)

bp

20.4 °C/1013 hPa

bp

21 °C (lit.)

bp

21 °C (lit.)

bp

21 °C (lit.)

pH

5 (20 °C, 10 g/L in H2O)

pH

-

pH

5 (20 °C)

pH

-

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.

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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