Methacrolein

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

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Methacrolein Property

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℃
CAS DataBase Reference: 78-85-3(CAS DataBase Reference)
NIST Chemistry Reference: 2-Propenal, 2-methyl-(78-85-3)
EPA Substance Registry System: Methacrolein (78-85-3)

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Safety

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
F: 8-23
TSCA: Yes
HazardClass: 3
PackingGroup: II
HS Code: 29121900
Hazardous Substances Data: 78-85-3(Hazardous Substances Data)

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H225Highly Flammable liquid and vapour

H314Causes severe skin burns and eye damage

H330Fatal if inhaled

H341Suspected of causing genetic defects

H410Very toxic to aquatic life with long lasting effects

Precautionary statements

P210Keep away from heat/sparks/open flames/hot surfaces. — No smoking.

P273Avoid release to the environment.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P303+P361+P353IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

Sigma-Aldrich

Product number: 133035
Product name: Methacrolein
Purity: 95%
Packaging: 5ml
Price: $82.4
Updated: 2024/03/01

Sigma-Aldrich

Product number: 133035
Product name: Methacrolein
Purity: 95%
Packaging: 25ml
Price: $216
Updated: 2024/03/01

TCI Chemical

Product number: M0078
Product name: Methacrolein (stabilized with HQ)
Purity: >90.0%(GC)
Packaging: 25mL
Price: $76
Updated: 2024/03/01

TCI Chemical

Product number: M0078
Product name: Methacrolein (stabilized with HQ)
Purity: >90.0%(GC)
Packaging: 100mL
Price: $228
Updated: 2024/03/01

Alfa Aesar

Product number: 043124
Product name: Methacrolein, 96%, stab. with hydroquinone
Packaging: 5ml
Price: $63.7
Updated: 2024/03/01

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Methacrolein Chemical Properties,Usage,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.

Uses

Methacrolein is used in the manufacturing of polymers, synthetic resins and plastics. It acts as a raw material of methylmalonic acid, thermoplastic fuel and in the preparation of 2,3-dibromo-2-methyl-propionaldehyde. It is also used to study the effect limonene oxidation products and the terpene oxidation product.

Definition

ChEBI: Methacrolein is an enal.

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.

Hazard

Flammable, dangerous fire risk. Strong irritant.

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.

Flammability and Explosibility

Highly flammable

Safety Profile

Poison by ingestion and sktn contact. Moderately toxic by inhalation. Severe eye and skin irritant. Mutation data reported. Dangerously flammable liquid when exposed to heat, flame, or oxidizers. Can react vigorously with oxidizing materials. To fight fire, use CO2, alcohol foam, foam, dry chemical. When heated to decomposition it emits acrid smoke and irritating fumes. See also ALDEHYDES.

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

3,8-DIMETHYL-1,10-PHENANTHROLINE 3,8-Dimethylquinoline FENPROPIMORPH

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Methacrolein Suppliers

Americas 1 Belgium 2 Canada 2 China 153 Europe 1 France 1 Germany 4 India 5 Japan 5 Switzerland 2 The Netherlands 1 Ukraine 1 United Kingdom 6 United States 30 Global 214

Protheragen-ING

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View Lastest Price from Methacrolein manufacturers

Career Henan Chemical Co

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

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