Acetaldehyde CAS#75-07-0

Boiling point 

21 °C (lit.)

density 

0.785 g/mL at 25 °C (lit.)

vapor density 

1.03 (vs air)

vapor pressure 

52 mm Hg ( 37 °C)

refractive index 

n20/D 1.377

FEMA 

2003 | ACETALDEHYDE

Fp 

133 °F

storage temp. 

2-8°C

solubility 

alcohols: soluble

pka

13.57(at 25℃)

form 

solution

color 

White to off-white

Specific Gravity

0.823 (20/4℃) (?90% Soln.)

Odor

Pungent, fruity odor detectable at 0.0068 to 1000 ppm   (mean = 0.067 ppm)

PH

5 (10g/l, H2O, 20℃)

Odor Threshold

0.0015ppm

Odor Type

ethereal

biological source

synthetic

explosive limit

4-57%(V)

Water Solubility 

> 500 g/L (20 ºC)

Sensitive 

Air Sensitive

Merck 

14,39

JECFA Number

80

BRN 

505984

Henry's Law Constant

7.69 at 25 °C (Snider and Dawson, 1985:Benkelberg et   al., 1995)

Exposure limits

TLV-TWA 180 mg/m3 (100 ppm) (ACGIH), 360   mg/m3 (200 ppm) (NIOSH); STEL 270 mg/m3 (150 ppm); IDLH 10,000 ppm.

Dielectric constant

21.8（5℃）

Stability:

Stable, but air sensitive. Substances to be avoided   include strong oxidizing agents, strong acids, reducing agents, alkalies,   halogens, halogen oxides. Highly flammable. Vapour/air mixtures explosive   over a very wide concentration range. May form peroxides in storage.

InChIKey

IKHGUXGNUITLKF-UHFFFAOYSA-N

LogP

-0.16

CAS DataBase Reference

75-07-0(CAS DataBase Reference)

NIST Chemistry Reference

Acetaldehyde(75-07-0)

IARC

2B (Vol. 36, Sup 7, 71) 1999, 1 (Vol. 100E) 2012

EPA Substance Registry System

Acetaldehyde (75-07-0)

Risk Statements 

23/24/25-34-40-43-36/37-12-67-11-41-22-10-19

Safety Statements 

36/37-33-16-26

RIDADR 

UN 1198 3/PG 3

WGK Germany 

2

RTECS 

LP8925000

F 

10

Autoignition Temperature

185 °C

TSCA 

Yes

HazardClass 

3

PackingGroup 

I

HS Code 

29121200

Hazardous Substances Data

75-07-0(Hazardous Substances Data)

Toxicity

LD50 orally in rats: 1930 mg/kg (Smyth)

IDLA

2,000 ppm