ISOBUTYRALDEHYDE

PRODUCT IDENTIFICATION

CAS NO.

 78-84-2

ISOBUTYRALDEHYDE

EINECS NO.

201-149-6

FORMULA

(CH3)2CHCHO

MOL WT. 72.11
H.S. CODE 2912.13

TOXICITY

 Oral rat LD50: 960 mg/kg
SYNONYMS Isobutaldehyde; Isobutyryl aldehyde; Methyl propanal;
alpha-Methylpropionaldehyde; Isobutanal; Isopropylaldehyde; Isopropylformaldehyde; 2-Methylpropanal; 2-Methylpropionaldehyde; Isobutylaldehyde; Isobutyric aldehyde; 2-Methyl-1-propanal; Isobutyraldehyd; Valine aldehyde;

SMILES

 

CLASSIFICATION

 

PHYSICAL AND CHEMICAL PROPERTIES
PHYSICAL STATE Clear liquid
MELTING POINT -66 C
BOILING POINT

63 - 64 C

SPECIFIC GRAVITY 0.791 - 0.795
SOLUBILITY IN WATER Slightly soluble
pH  
VAPOR DENSITY 2.5
AUTOIGNITION

165 C

NFPA RATINGS Health: 2 Flammability: 3 Reactivity: 1

REFRACTIVE INDEX

 1.3790
FLASH POINT -18 C
STABILITY readily oxidizes on prolonged exposure to air to form explosive peroxides

DESCRIPTION AND APPLICATIONS

Isobutyraldehyde, branched C4 aldehyde is used as an intermediate in the manufacturing plasticizers, alcohols isobutanol, neopentyl glycol) , solvents and polymers. It is also used as an intermediate to make pharmaceuticals, agrochemicals, vitamins, antioxidants, rubber accelerators, textile auxiliaries, perfumery and flavors.
SALES SPECIFICATION

APPEARANCE

clear liquid

ASSAY

98.0% min

ACIDITY

0.5% max

WATER

1.5% max

COLOR

20 max (Pt/Co scale)

TRANSPORTATION
PACKING Only in bulk
HAZARD CLASS 3 (Packing group: II)
UN NO. 2045
OTHER INFORMATION
Hazard Symbols: F, Risk Phrases: 11, Safety Phrases: 9-16-29-33
DESCRIPTION OF ALDEHYDE
Aldehydes are organic compounds containing -CHO radical, in which a carbon atom forms a solid bond with an oxygen atom and is also bonded to a hydrogen atom and another group denoted by R, which can be a second hydrogen atom, an alkyl group, or an aryl group. The most important and the simplest examples are methanal (formaldehyde), HCOH, and ethanal (acetaldehyde), CH3CHO.( In systematic chemical nomenclature, aldehyde names end with the suffix -al). Formaldehyde is used to make synthetic resins by reaction with phenols, urea, and melamine, as a chemical intermediate, as an embalming fluid, and as a disinfectant. Acetaldehyde is used chiefly to manufacture acetic acid. They are unpleasant-smelling liquids widely used in the chemical industry, whereas aromatic aldehydes frequently have pleasant smells and are used widely as flavourings and perfumes. An example is  benzaldehyde (benzenecarbaldehyde, C6H5CHO), a derivative of benzene with an aldehyde group attached to the ring. It is a colourless oil smelling of almonds offer applications to both in perfumes and flavourings. Aldehydes are formed by oxidation of primary alcohols; further oxidation yields carboxylic acids. Aldehydes have certain characteristic addition and condensation reactions. Aldehydes can be reduced to primary alcohols (ketones to secondary alcohols). Aldehydes form cyanohydrins with hydrogen cyanide, acetals with alcohol, yellow-orange solid derivatives with DNP ( 2,4-dinitrophenylhydrazones) and undergo condensation reactions to yield oximes (compounds containing the group C:NOH), hydrazones (organic compounds containing the group =C:NNH2), and semicarbazones (organic compounds containing the unsaturated group =C:N.NH.CO.NH2). Aldehydes readily polymerize.