Properties
- 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℃
Safety Information
Use
CROTONALDEHYDE can react violently with strong oxidizing reagents, e.g., reaction with conc. nitric acid leads to instantaneous ignition [Andrussow, L., Chim. Ind. (Paris), 1961, 86, p. 542]. In contact with strong acids or bases CROTONALDEHYDE will undergo an exothermic condensation reaction. Reaction with 1,3-butadiene is particularly violent [Greenlee, K. W., Chem. Eng. News, 1948, 26, p. 1985]. Crotonaldehyde may rapidly polymerize with ethyl acetoacetate (Soriano, D.S. et al. 1988. Journal of Chemical Education 65:637.).