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Methacrolein

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Origin: China

Cas No: 78-85-3

Specification: 99%min

Min order Quantity: 1 /kg

Supply Ability: 100 mt/month

Lead time: 7 days for OEM, 3 days for ready goods

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Products Specification
Product Description

Property

CAS No.: 78-85-3 Formula: C4H6O Molecular Weight: 70.08980

Description

Methacrolein, or methacrylaldehyde, is an unsaturated aldehyde. It is a clear, colorless, flammable liquid.
Methacrolein is one of two major products resulting from the reaction of isoprene with OH in the atmosphere, the other product being Methyl vinyl ketone (MVK, also known as butenone). These compounds are important components of the atmospheric oxidation chemistry of biogenic chemicals, which can result in the formation of ozone and/or particulates.
It is present in cigarette smoke.
Industrially, the primary use of methacrolein is in the manufacture of polymers and synthetic resins.
Exposure to methacrolein is highly irritating to the eyes, nose, throat and lungs.
The essential oil of the plant Big Sagebrush (Artemisia tridentata) contains 5% methacrolein.

Basic Info

Chemical Name	Methacrolein
Synonyms	2-Methylacrolein; Isobutenal; Methacraldehyde; Metharolein; 2-methyl-2-propenal; 2-methyl propenal; Methakrylaldehyd; methacrylaldehyde; 2-Propenal, 2-methyl-; 2-methyl-acrolei; Methylacrolein;
CAS No.	78-85-3
Molecular Formula	C4H6O
Molecular Weight	70.08980
PSA	17.07000
LogP	0.76140

Properties

Appearance & Physical State	colourless to light yellow liquid
Density	0.847
Boiling Point	69ºC
Melting Point	-81ºC
Flash Point	-15ºC
Refractive Index	1.4145
Water Solubility	6 g/100 mL (20 ºC)
Stability	Stable. Incompatible with strong bases, strong oxidising agents, strong reducing agents. Light and air-sensitive. Hazardous polymerisation may occur.
Storage Condition	2-8ºC
Vapor Density	2.4 (vs air)
Vapor Pressure	121 mm Hg ( 20 °C)

Safety Info

RTECS	OZ2625000
Hazard Class	3
Safety Statements	S16-S26-S28-S36/37/39-S45
WGK Germany	3
Packing Group	II
RIDADR	UN 2396
Risk Statements	R11; R24/25; R26; R34
Hazard Codes	F; T

Synthesis Route

isobutane→β-BUTYROLACTONE+Methacrolein
isobutane→β-BUTYROLACTONE+Methacrolein
isobutane→β-BUTYROLACTONE+Methacrolein

GC Analysis

Column type	Active phase	Temperature (°C)	Retention Index (I)	Temperature Control Method
Packed	Apiezon L	120.	543.	isothermal
Packed	Apiezon L	160.	552.	isothermal
Capillary	SE-54	-	566.	temperature ramp
Capillary	DB-5	-	568.4	temperature ramp
Capillary	DB-1	-	552.7	temperature ramp