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2-ETHYLBUTYRALDEHYDE

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2-ETHYLBUTYRALDEHYDE Basic information
2-ETHYLBUTYRALDEHYDE Chemical Properties
  • Melting point:-89°C
  • Boiling point:117 °C(lit.)
  • Density 0.814 g/mL at 25 °C(lit.)
  • refractive index n20/D 1.402(lit.)
  • FEMA 2426 | 2-ETHYLBUTYRALDEHYDE
  • Flash point:70 °F
  • storage temp. Flammables area
  • Water Solubility Soluble in ether and alcohols. Slightly soluble in water.
  • Sensitive Air Sensitive
  • JECFA Number256
  • BRN 1209330
  • Stability:Stability Stable, but air sensitive. Flammable. Readily forms explosive mixtures with air. Incompatible with strong bases, strong reducing agents, oxidizing agents.
  • CAS DataBase Reference97-96-1(CAS DataBase Reference)
  • EPA Substance Registry SystemButanal, 2-ethyl- (97-96-1)
Safety Information
  • Hazard Codes F,Xi
  • Risk Statements 11-36/37/38
  • Safety Statements 16-26-36
  • RIDADR UN 1178 3/PG 2
  • WGK Germany 1
  • RTECS ES2625000
  • TSCA Yes
  • HazardClass 3
  • PackingGroup II
  • HS Code 29121900
MSDS
2-ETHYLBUTYRALDEHYDE Usage And Synthesis
  • Chemical PropertiesColorless liquid.Insoluble in water.
  • Chemical PropertiesEthyl butyraldehyde is a colorless liquid
  • Chemical Properties2-Ethylbutyraldehyde has a pungent odor.
  • OccurrenceReported found in melon, French fried potato, wheaten bread, scallops, citrus fruits, white bread and maize.
  • Uses
    2-Ethylbutyraldehyde has been used in the preparation of aldoximes using aqueous hydroxylamine.
  • UsesOrganic synthesis, pharmaceuticals, rubber accelerators, synthetic resins.
  • Taste threshold valuesTaste characteristics at 20 ppm: green, fruity, cocoa with sweet, fresh nuances.
  • General DescriptionA clear colorless liquid. Flash point 70°F. Less dense than water and insoluble in water. Vapors heavier than air.
  • Air & Water ReactionsHighly flammable. With air slowly form peroxides. Insoluble in water.
  • Reactivity Profile2-ETHYLBUTYRALDEHYDE 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.
  • HazardIrritant to eyes and skin. Flammable, dangerous fire risk.
  • Health HazardMay 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.
  • Fire HazardHIGHLY 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.
  • Safety ProfileModerately toxic by ingestion. Mildly toxic by inhalation. A skin irritant. Flammable liquid. Can react vigorously with oxidizing materials. To fight fire, use alcohol foam, Co2, dry chemical. When heated to decomposition it emits acrid smoke and fumes. See also ALDEHYDES.
  • Chemical SynthesisFrom diethyl carbinol and anhydrous oxalic acid or with sulfuric acid; a more recent synthetic route (Xeisel–Neuwirth method) calls for the reduction of α-vinylcrotonaldehyde using iron dust and acetic acid
  • Potential ExposureUsed in organic synthesis of pharmaceuticals and rubber chemicals.
  • ShippingUN1178 2-Ethyl butyraldehyde, Hazard Class: 3; Labels: 3-Flammable liquid
  • IncompatibilitiesVapors 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, and reducing agents. 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
  • Waste DisposalDissolve or mix the material with a combustible solvent and burn in a chemical incinerator equipped with an afterburner and scrubber. All federal, state, and local environmental regulations must be observed. Consult with environmental regulatory agencies for guidance on acceptable disposal practices. Generators of waste containing this contaminant (≥100 kg/mo) must conform with EPA regulations governing storage, transportation, treatment, and waste disposal.
2-ETHYLBUTYRALDEHYDE Preparation Products And Raw materials
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