Home Categories Organic Chemistry Acrolein
A4709231

Acrolein , CP , 107-02-8

Synonym(s):
2-Propenal

CAS NO.:107-02-8

Empirical Formula: C3H4O

Molecular Weight: 56.06

MDL number: MFCD00006998

EINECS: 203-453-4

Update time: 2022-07-08

PRODUCT 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  n20/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
CAS DataBase Reference 107-02-8(CAS DataBase Reference)
IARC 3 (Vol. 63, Sup 7) 1995
NIST Chemistry Reference 2-Propenal(107-02-8)
EPA Substance Registry System Acrolein (107-02-8)

Description and Uses

The first time that acrolein was produced as a commercial product was in the 1930s through the vapor-phase condensation of acetaldehyde and formaldehyde. Another method was developed in the 1940s, which involved the vapor-phase oxidation of propylene. In the 1960s, some advances were found in propylene oxidation process by the introduction of bismuth molybdate-based catalysis, and that became the primary method used for the commercial production of acrolein. Some bioproducts formed for this reaction are acrylic acid, carbon oxides, acetaldehyde, acetic acid, formaldehyde, and polyacrolein. In World War I, it was used as a chemical weapon (pulmonary irritant and lachrymatory agent). Commercial acrolein contains 95.5% or more of the compound, the main impurities being water (<3.0% by weight) and other carbonyl compounds (<1.5% by weight), mainly propanol and acetone. Hydroquinone is added as an inhibitor of polymerization (0.1–0.25% by weight).

Contact herbicide and algicide; injected in water for the control of submerged and floating weeds in irrigation ditches and canals

Safety

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
RIDADR  UN 1092 6.1/PG 1
OEB C
OEL TWA: 0.1 ppm (0.25 mg/m3), STEL: 0.3 ppm (0.8 mg/m3) (Aldehydes)
WGK Germany  3
RTECS  AS1050000
8-9
Autoignition Temperature 234 °C
TSCA  Yes
HazardClass  6.1
PackingGroup  I
HS Code  29121900
Hazardous Substances Data 107-02-8(Hazardous Substances Data)
Toxicity LD50 orally in rats: 0.046 g/kg (Smyth)
IDLA 2 ppm

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