Methyl propionate Chemical Properties
- Melting point:
- -88 °C
- Boiling point:
- 79 °C(lit.)
- 0.915 g/mL at 25 °C(lit.)
- vapor density
- 3 (vs air)
- vapor pressure
- 40 mm Hg ( 11 °C)
- refractive index
- 2742 | METHYL PROPIONATE
- Flash point:
- 43 °F
- storage temp.
- Flammables area
- H2O: soluble16 parts
- Clear colorless
- explosive limit
- Water Solubility
- 5 g/100 mL at 20 ºC
- JECFA Number
- Stable. Highly flammable. Incompatible with strong oxidizing agents, acids, bases. Readily forms explosive mixtures with air. Moisture sensitive.
- CAS DataBase Reference
- 554-12-1(CAS DataBase Reference)
- NIST Chemistry Reference
- Propanoic acid, methyl ester(554-12-1)
- EPA Substance Registry System
- Methyl propionate (554-12-1)
- Hazard Codes
- Risk Statements
- Safety Statements
- UN 1248 3/PG 2
- WGK Germany
- Autoignition Temperature
- 876 °F
- HS Code
- 2915 50 00
- Hazardous Substances Data
- 554-12-1(Hazardous Substances Data)
- LD50 orally in Rabbit: 5000 mg/kg
Methyl propionate Usage And Synthesis
Methyl propionate is an organic compound belonging to the family of carboxylic acid esters, which is commonly applied as a solvent for cellulose nitrate and lacquers. It also serves as a raw material in organic synthesis for manufacturing paints, varnishes and other chemical productions such as methyl methacrylate. Besides, the fruity smell and taste of methyl propanoate results in its usage of fragrances and flavoring agents.
Methyl propanoate can be synthesized by esterifying propionic acid with methanol. In the field of industry, it is produced by the reaction of ethylene with carbon monoxide and methanol in the presence of nickel carbonyl.
Methyl propionate, also known as methyl propanoate, is a chemical compound with the molecular formula C4H8O2. It is a volatile ester with a sweet, fruity, rum-like odor.
Methyl propionate is colorless liquid with a sweet, fruity, rum-like odor.
Methyl propionate has a fruity odor reminiscent of rum with a sweet flavor suggestive of black currant. May be prepared by direct esterification of the acid with methanol in the presence of concentrated H2S04.
Methyl propionate has a fruity odor reminiscent of rum. It has a sweet flavor suggestive of black currant
Reported found in guava, honey, melon, pineapple, raspberry, blackberry, strawberry, cheddar cheese, cooked beef, coffee, soy protein, durian (Durio zibethinus), starfruit, plum brandy, cherimoya, kiwifruit, naranjilla, mussels and rooibus tea (Aspalathus linearis)
Methyl propionate is used as a solvent for cellulose nitrate and lacquers, and as a raw material for the production of paints, varnishes and other chemicals such as methyl methacrylate.
Due to its fruity smell and taste, it is also used in fragrances and flavoring.
In organic synthesis.
Methyl propionate can be prepared by esterification of propionic acid with methanol. Industrially, it is prepared by the reaction of ethylene with carbon monoxide and methanol in the presence of nickel carbonyl.
Methyl propionate is produced by the direct esterification of propionic acid with methanol in the presence of concentrated sulfuric acid .
Aroma threshold values
Detection: 100 ppb to 8.8 ppm
A clear colorless liquid. Flash point 28°F. Density about the same as water. Vapors heavier than air. May irritate skin, eyes, and mucous membranes. Used for flavoring and as a solvent.
Air & Water Reactions
Highly flammable. Soluble in water.
Methyl propionate reacts with acids to liberate heat along with alcohols and acids. Strong oxidizing acids may cause a vigorous reaction that is sufficiently exothermic to ignite the reaction products. Heat is also generated by the interaction with caustic solutions. Flammable hydrogen is generated with alkali metals and hydrides.
Flammable, dangerous fire risk, explosivelimits in air 2.5–13%.
May cause toxic effects if inhaled or absorbed through skin. Inhalation or contact with material may 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.
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 hazard indoors, outdoors or in sewers. Runoff to sewer may create fire or explosion hazard. Containers may explode when heated. Many liquids are lighter than water.
Moderately toxic by ingestion. Mildly toxic by inhalation. A skin irritant. A very dangerous fire hazard when exposed to heat, flame, or oxidizers. Explosive in the form of vapor when exposed to heat or flame. To fight fire, use foam, CO2, dry chemical. When heated to decomposition it emits acrid smoke and irritating fumes.
By direct esterification of the acid with methanol in the presence of concentrated H2SO4
Used as a solvent; and in making paints, lacquers, and varnishes. Also used in flavorings and fragrances
UN1248 Methyl propionate, Hazard Class: 3; Labels: 3-Flammable liquid.
Wash the ester with saturated aqueous NaCl, then dry it with Na2CO3 and distil it from P2O5. (This removes any free acid and alcohol.) It has also been dried with anhydrous CuSO4. [Beilstein 2 IV 104.]
May form explosive mixture with air. Incompatible with oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explosions. Keep away from alkaline materials, strong bases, strong acids, oxoacids, epoxides. Keep away from heat and moisture.
Methyl propionate Preparation Products And Raw materials
- Ethyl 2-bromopropionate
- Ethyl 2-bromohexanoate
- Ethyl 2-bromoisobutyrate
- DL-Ethyl 2-bromobutyrate
- Ethyl 2,3-dibromopropionate
- Ethyl 2-bromoheptanoate
- Ethyl 2-bromovalerate
- Ethyl bromopyruvate
- Methyl propionate
- Methyl acrylate
- Methyl acetate
- Methyl bromide
- (2-METHYL-1H-INDOL-3-YL)-OXO-ACETIC ACID ETHYL ESTER
- Calcium Propionate
- Methyl 2-bromopropionate
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