CROTONALDEHYDE

Melting point:

−76 °C(lit.)

Boiling point:

104 °C(lit.)

Density 

0.853 g/mL at 20 °C(lit.)

vapor density 

2.41 (vs air)

vapor pressure 

32 mm Hg ( 20 °C)

refractive index 

n20/D 1.437

Flash point:

48 °F

storage temp. 

2-8°C

solubility 

Miscible with alcohol, benzene, gasoline, kerosene, solvent naphtha, and toluene (Hawley, 1981)

form 

Colorless liquid

color 

Colourless

Odor Threshold

0.023ppm

Water Solubility 

Soluble in water. (150g/L) at 20°C.

Sensitive 

Air Sensitive

Merck 

13,2624

BRN 

1209254

Henry's Law Constant

1.92 x 10^-5 atm?m³/mol (Buttery et al., 1971)

Exposure limits

NIOSH REL: TWA 2 ppm (6 mg/m³), IDLH 50 ppm; OSHA PEL: TWA 2 ppm; ACGIH TLV: ceiling 0.3 ppm (adopted).

Stability:

Air sensitive. Highly flammable. Readily forms explosive mixtures with air. May polymerize in the presence of acids, alkalies or amines. Uncontrolled polymerisation may lead to a rapid temperature rise. Incompatible with acids, bases, amines, strong oxidizing agents, butadiene, ketones, oxygen. May contain a stabilizer.

LogP

0.6 at 25℃

Symbol(GHS) 

GHS02,GHS05,GHS06,GHS08,GHS09

Signal word 

Danger

Hazard statements 

H225-H301+H311-H315-H318-H330-H335-H341-H373-H400

Precautionary statements 

P201-P210-P280-P301+P310+P330-P304+P340+P310-P305+P351+P338+P310

Hazard Codes 

F,T+,N

Risk Statements 

11-24/25-26-37/38-41-48/22-50-68

Safety Statements 

26-28-36/37/39-45-61-16

RIDADR 

UN 1143 6.1/PG 1

OEB

B

OEL

TWA: 2 ppm (6 mg/m3) (Aldehydes)

WGK Germany 

3

RTECS 

GP9625000

F 

9-13-23

TSCA 

Yes

HazardClass 

6.1(a)

PackingGroup 

I

Toxicity

LD50 orally in rats: 0.3 g/kg (Smyth, Carpenter)

IDLA

50 ppm