METHYL BENZOYLFORMATE

PRODUCT IDENTIFICATION
CAS NO. 15206-55-0

METHYL BENZOYLFORMATE

EINECS NO. 239-263-3
FORMULA C6H5COCOOCH3
MOL WT. 164.16
H.S. CODE 2915.13
TOXICITY  
SYNONYMS Methyl phenylglyoxylate; Benzoylformic acid methyl ester;
Methyl phenylglyoxalate; Glyoxylic acid, phenyl-, methyl ester; Phenylglyoxylic acid, methyl ester; Benzeneacetic Acid, alpha.-oxo-, Methyl Ester; Methyl oxophenylacetate; Methylbenzoylformiat (German); Benzoilformiato de metilo (Spanish); Benzoylformiate de methyle (French);
SMILES

 

CLASSIFICATION

 
 

PHYSICAL AND CHEMICAL PROPERTIES
PHYSICAL STATE light yellow liquid
MELTING POINT -5 C
BOILING POINT 246 - 248 C
SPECIFIC GRAVITY 1.155
SOLUBILITY IN WATER  
AUTOIGNITION  
pH  
VAPOR DENSITY 5.6
NFPA RATINGS Health: 1; Flammability: 1; Reactivity: 0

REFRACTIVE INDEX

 1.5260
FLASH POINT > 112 C
STABILITY Stable under ordinary conditions

APPLICATIONS
Polymerization is initiated generally by free radical. There are four types of free radical initiators which initiate polymerization.
  • Peroxides including hydroperoxides (tertiary-butyl hydroperoxide, benzoylperoxide)
  • Azocompound thermal initiators (azoisobutyronitrile)
  • Redoxinitiators (mixture of iron(III) acetylacetonate): free radicals are formed by one-electron transferreactions. Useful in low temperature and emulsion polymerization
  • Photoinitiators (benzoin, benzil dimethylketal)

The main advantage of polymerization started by photoinitiators is temperature-independence and easy control. It can be conducted at very low temperatures and can be stopped simply by removing the light source. Photoinitiators are compounds that break down into free radicals upon exposure to ultraviolet radiation. Photoinitiators undergo a unimolecular bond cleavage upon irradiation to yield free radicals (benzoin esters; benzil ketals; alpha-dialkoxy acetophenones; alpha-hydroxy-alkylphenones; alpha-amino alkyl- phosphine; acylphosphine oxides). Another type of photoinitiators undergo a bimolecular reaction where the excited state of the photoinitiator interacts with a second molecule (a coinitiator) to generate free radicals(benzo phenones,amines; thioxanthones,amines; titanocenes). Photoinitiators are widely applied in UV curing inks, wood coatings, paper coatings, optical fiber, PCB, screen printing , paper varnish and other surface coatings.
SALES SPECIFICATION

APPEARANCE

 light yellow liquid

ASSAY

 98.0% min
METHYL BENZOATE 2.0% max
ASH 0.1% max
LOSS ON DRYING 0.5% max
TRANSPORTATION
PACKING 200kgs in drum
HAZARD CLASS  
UN NO.  

OTHER INFORMATION