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Acrolein
Acrolein
- CAS:
- 107-02-8
- MF:
- C3H4O
- MW:
- 56.06
Properties
- Melting point:
- −87 °C(lit.)
- Boiling point:
- 53 °C(lit.)
- Density
- 0.839 g/mL at 25 °C(lit.)
- vapor density
- 1.94 (vs air)
- vapor pressure
- 4.05 psi ( 20 °C)
- refractive index
- n
20/D 1.403(lit.)
- Flash point:
- −2 °F
- storage temp.
- 2-8°C
- solubility
- H2O: soluble2 to 3 parts
- form
- Liquid
- color
- Colourless to Pale Yellow
- Odor
- Pungent, lacrimatory, intensely irritating odor detectable at 0.02 to 0.4 ppm
- explosive limit
- 31%
- Odor Threshold
- 0.0036ppm
- Odor Type
- fruity
- Water Solubility
- Soluble. 21.25 g/100 mL
- Sensitive
- Air & Light Sensitive
- Merck
- 14,128
- BRN
- 741856
- Henry's Law Constant
- (x 10-6 atm?m3/mol at 25 °C): 135 (Snider and Dawson, 1985)
- Exposure limits
- NIOSH REL: TWA 0.1 ppm, STEL 0.3 ppm, IDLH 2 ppm; OSHA PEL: TWA 0.1 ppm; ACGIH TLV: TWA 0.1 ppm, STEL 0.3 ppm.
- Stability:
- Stable, but very readily polymerizes. May have ca. 0.1% hydroquinone added as stabilizer. Flammable. Incompatible with oxidizing agents, reducing agents, oxygen, a variety of other chemicals, light. Very reactive with a wide variety of chemicals. May polymerize violently, especially on contact with strong acids or bases.
- InChIKey
- HGINCPLSRVDWNT-UHFFFAOYSA-N
- LogP
- -0.010
Safety Information
- Symbol(GHS)
GHS02,GHS05,GHS06,GHS09
- Signal word
- Danger
- Hazard statements
- H225-H300+H330-H311-H314-H410
- Precautionary statements
- P210-P273-P280-P303+P361+P353-P304+P340+P310-P305+P351+P338
- Hazard Codes
- F,T+,N,T
- Risk Statements
- 11-24/25-26-34-50-26/28-24
- Safety Statements
- 23-26-28-36/37/39-45-61-16
- OEB
- C
- OEL
- TWA: 0.1 ppm (0.25 mg/m3), STEL: 0.3 ppm (0.8 mg/m3) (Aldehydes)
- RIDADR
- UN 1092 6.1/PG 1
- WGK Germany
- 3
- RTECS
- AS1050000
- F
- 8-9
- Autoignition Temperature
- 234 °C
- TSCA
- Yes
- HazardClass
- 6.1
- PackingGroup
- I
- HS Code
- 29121900
- Toxicity
- LD50 orally in rats: 0.046 g/kg (Smyth)
- IDLA
- 2 ppm
Use
Acrolein (acraldehyde, acrylaldehyde, acrylic aldehyde, allyl aldehyde, propenal, 2-propenal) is another important aldehyde. It is used as a chemical intermediate in many industrial synthetic processes, including in the production of acrylic acid and allyl alcohol. Acrolein may also be used as a biocide and in the production of perfumes and colloidal metals. Residue from industrial emissions and the burning of wood and other organic substrates will contain traces of acrolein. Acrolein is also a constituent of diesel exhaust and photochemical smog. It is also formed during the pyrolysis of cotton and polyethylene and found in cigarette smoke. Much of the human toxicity data is obtained from the formation of acrolein in vivo as a metabolite of the anticancer drug, cyclophosphamide.
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