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Methacrolein

Methacrolein
Methacrolein
CAS No.
78-85-3
Chemical Name:
Methacrolein
Synonyms
nsc8260;Isobutenal;Metharolein;METHACROLEIN;CH2=C(CH3)CHO;Methylacrolein;Methacraldehyde;2-Methylacrolein;2-methyl-acrolei;Methakrylaldehyd
CBNumber:
CB6168146
Molecular Formula:
C4H6O
Formula Weight:
70.09
MOL File:
78-85-3.mol

Methacrolein 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
form 
Liquid
color 
Pale yellow
Water Solubility 
6 g/100 mL (20 ºC)
Sensitive 
Light Sensitive
Stability:
Stable. Incompatible with strong bases, strong oxidising agents, strong reducing agents. Light and air-sensitive. Hazardous polymerisation may occur.
CAS DataBase Reference
78-85-3(CAS DataBase Reference)
NIST Chemistry Reference
2-Propenal, 2-methyl-(78-85-3)
EPA Substance Registry System
2-Propenal, 2-methyl-(78-85-3)
SAFETY
  • Risk and Safety Statements
  • Hazard and Precautionary Statements (GHS)
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
Hazardous Substances Data 78-85-3(Hazardous Substances Data)
Symbol(GHS):
Signal word: Danger
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H225 Highly Flammable liquid and vapour Flammable liquids Category 2 Danger P210,P233, P240, P241, P242, P243,P280, P303+ P361+P353, P370+P378,P403+P235, P501
H301 Toxic if swalloed Acute toxicity,oral Category 3 Danger P264, P270, P301+P310, P321, P330,P405, P501
H311 Toxic in contact with skin Acute toxicity,dermal Category 3 Danger P280, P302+P352, P312, P322, P361,P363, P405, P501
H314 Causes severe skin burns and eye damage Skin corrosion/irritation Category 1A, B, C Danger P260,P264, P280, P301+P330+ P331,P303+P361+P353, P363, P304+P340,P310, P321, P305+ P351+P338, P405,P501
H318 Causes serious eye damage Serious eye damage/eye irritation Category 1 Danger P280, P305+P351+P338, P310
H330 Fatal if inhaled Acute toxicity,inhalation Category 1, 2 Danger P260, P271, P284, P304+P340, P310,P320, P403+P233, P405, P501
Precautionary statements:
P210 Keep away from heat/sparks/open flames/hot surfaces. — No smoking.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P310 Immediately call a POISON CENTER or doctor/physician.
P320 Specific treatment is urgent (see … on this label).
P301+P310 IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician.
P303+P361+P353 IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.
P304+P340 IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P405 Store locked up.

Methacrolein price More Price(7)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 133035 Methacrolein 95% 78-85-3 5ml $51.1 2018-11-13 Buy
Sigma-Aldrich 133035 Methacrolein 95% 78-85-3 25ml $177 2018-11-13 Buy
TCI Chemical M0078 Methacrolein (stabilized with HQ) >90.0%(GC) 78-85-3 25mL $56 2017-12-01 Buy
TCI Chemical M0078 Methacrolein (stabilized with HQ) >90.0%(GC) 78-85-3 100mL $167 2017-12-01 Buy
Alfa Aesar 043124 Methacrolein, 96%, stab. with hydroquinone 78-85-3 25ml $172 2018-11-16 Buy

Methacrolein Chemical Properties,Uses,Production

Chemical Properties

colourless to light yellow liquid

Uses

An unsaturated aldehyde used in the manufacture of polymers and synthetic resin. Cancer studies revealed consumption and release of this volatile organic compound in human small cell lung cancer line, a potential cancer biomarker.

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.

General Description

A colorless liquid. Flash point 35°F. Less dense than water. May be toxic by ingestion, inhalation and skin absorption. Severely irritating to skin and eyes. Used to make plastics.

Air & Water Reactions

Highly flammable. Soluble in water.

Reactivity Profile

Methacrolein is an aldehyde. Aldehydes are frequently involved in self-condensation or polymerization reactions. These reactions are exothermic; they are often catalyzed by acid. Aldehydes are readily oxidized to give carboxylic acids. Flammable and/or toxic gases are generated by the combination of aldehydes with azo, diazo compounds, dithiocarbamates, nitrides, and strong reducing agents. Aldehydes can react with air to give first peroxo acids, and ultimately carboxylic acids. These autoxidation reactions are activated by light, catalyzed by salts of transition metals, and are autocatalytic (catalyzed by the products of the reaction). The addition of stabilizers (antioxidants) to shipments of aldehydes retards autoxidation.

Health Hazard

TOXIC; may be fatal if inhaled, ingested or absorbed through skin. Inhalation or contact with some of these materials will irritate or burn skin and eyes. Fire will produce irritating, corrosive and/or toxic gases. Vapors may cause dizziness or suffocation. Runoff from fire control or dilution water may cause pollution.

Fire Hazard

HIGHLY FLAMMABLE: Will be easily ignited by heat, sparks or flames. Vapors may form explosive mixtures with air. Vapors may travel to source of ignition and flash back. Most vapors are heavier than air. They will spread along ground and collect in low or confined areas (sewers, basements, tanks). Vapor explosion and poison hazard indoors, outdoors or in sewers. May polymerize explosively when heated or involved in a fire. Runoff to sewer may create fire or explosion hazard. Containers may explode when heated. Many liquids are lighter than water.

Purification Methods

Fractionally distil it under nitrogen through a short Vigreux column (p 11). Store it in sealed ampoules. (Slight polymerisation may occur.) [Beilstein 1 IV 3455.]

Methacrolein Preparation Products And Raw materials

Raw materials

Preparation Products


Methacrolein Suppliers

Global( 131)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
Henan DaKen Chemical CO.,LTD.
+86-371-55531817
inquiry@dakenchem.com CHINA 22119 58
Henan Tianfu Chemical Co.,Ltd.
0371-55170693
0371-55170693 info@tianfuchem.com CHINA 20795 55
Mainchem Co., Ltd.
+86-0592-6210733
+86-0592-6210733 sales@mainchem.com CHINA 32764 55
career henan chemical co
+86-371-86658258
sales@coreychem.com CHINA 10011 58
Suzhou Xinkai Bio-Medical Technology Co., Ltd. +86-0512-82216625 18013574230 13656202318
+86-0512-82216626 sales@xinkaibio.com China 362 55
Shanghai GAOXIANG Chemical Co., Ltd. 021-31006502 18930243658
021-37002064 fecpo@139.com, shgaolanlab@gmail.com China 308 55
J & K SCIENTIFIC LTD. 400-666-7788 +86-10-82848833
+86-10-82849933 jkinfo@jkchemical.com;market6@jkchemical.com China 96815 76
Meryer (Shanghai) Chemical Technology Co., Ltd. +86-(0)21-61259100(Shanghai) +86-(0)755-86170099(ShenZhen) +86-(0)10-62670440(Beijing)
+86-(0)21-61259102(Shanghai) +86-(0)755-86170066(ShenZhen) +86-(0)10-88580358(Beijing) sh@meryer.com China 40399 62
Alfa Aesar 400-610-6006; 021-67582000
021-67582001/03/05 saleschina@alfa-asia.com China 30308 84
TCI (Shanghai) Development Co., Ltd. 021-67121386 / 800-988-0390
021-67121385 Sales-CN@TCIchemicals.com China 24654 81

View Lastest Price from Methacrolein manufacturers

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
2018-08-13 Methacrolein
78-85-3
US $1.00 / KG 1KG 98% 1ton

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