Home Categories Chemical Reagents Methacrolein
A5572512

Methacrolein , ≥95.0%(GC), including about 1%HQ stabilizer , 78-85-3

Synonym(s):
Methacrylaldehyde

CAS NO.:78-85-3

Empirical Formula: C4H6O

Molecular Weight: 70.09

MDL number: MFCD00006974

EINECS: 201-150-1

Update time: 2022-07-08

PRODUCT Properties

Melting point: -81 °C
Boiling point: 69 °C
Density  0.85 g/mL at 25 °C(lit.)
vapor density  2.4 (vs air)
vapor pressure  121 mm Hg ( 20 °C)
refractive index  n20/D 1.416(lit.)
Flash point: 5 °F
storage temp.  2-8°C
solubility  Benzene (Slightly), Chloroform (Soluble), Methanol (Soluble)
form  Liquid
color  Pale yellow
Odor at 0.01 % in dipropylene glycol. wild hyacinth foliage
Odor Type floral
Odor Threshold 0.0085ppm
Water Solubility  6 g/100 mL (20 ºC)
Sensitive  Light Sensitive
BRN  1209258
Exposure limits ACGIH: TWA 1 mg/m3
OSHA: TWA 2 mg/m3
NIOSH: IDLH 50 mg/m3; Ceiling 2 mg/m3
Stability: Stable. Incompatible with strong bases, strong oxidising agents, strong reducing agents. Light and air-sensitive. Hazardous polymerisation may occur.
InChIKey STNJBCKSHOAVAJ-UHFFFAOYSA-N
LogP 0.9 at 23℃

Description and Uses

Methacrolein was used to study the effect of parts per billion levels of limonene oxidation products and the terpene oxidation product, methacrolein on human eye blink frequency. It was also used in determination of rate constants and the products of the reactions between atomic chlorine and acrolein, methacrolein and methyl vinyl ketone.

Safety

Symbol(GHS) 
GHS02,GHS05,GHS06,GHS08,GHS09
Signal word  Danger
Hazard statements  H225-H301+H311-H314-H330-H341-H410
Precautionary statements  P210-P273-P280-P303+P361+P353-P304+P340+P310-P305+P351+P338
Hazard Codes  F,T
Risk Statements  11-24/25-34-26
Safety Statements  16-26-36/37/39-45-28A
RIDADR  UN 2396 3/PG 2
WGK Germany  3
RTECS  OZ2625000
8-23
TSCA  Yes
HazardClass  3
PackingGroup  II
HS Code  29121900

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