Description : colorless or slightly yellow liquid.

Production methods : Quorum benzene; 20L propiophenone joined 100L enamelled 11:50. Pot maintain negative pressure (vacuum about MUSCLE), mixing in the next hour was added dropwise 8L bromine, temperature maintained at 30 ° C, bromination reaction after blowing dry air with the exception of the reaction liquid hydrogen bromide, in bromo phenyl acetone benzene 60-65L. Removal of solvent benzene, derived products.

Purposes : Rodenticide enemy of the rat intermediates

Abstract
The photoinitiation efficiency of the free-radical polymerization of methyl methacrylate and styrene by several carbonly compounds has been determined. The compounds considered were -substituted ketones and -dicarbonyl compounds. For the ketones, the initiation efficiency employing methyl methacrylate depends on the substitution; the values obtained change from less than 10-3 (acetone) to 0.65 (3-hydroxy-3-methyl-2-butanone). All ketones are more efficient towards methyl methacrylate than styrene. This result can be explained in terms of triplet quenching by the last monomer. The results obtained employing -dicarbonyl compounds do not conform to a simple pattern. In particular, benzil shows a considerably larger efficiency towards styrene than for methyl methacrylate. Since benzil is efficiently quenched by styrene, the initiation must involve the interaction of an excited benzil molecule and the monomer.




Note: These API/ chemicals are designated as those that are used in the manufacture of the controlled substances and are important to the manufacture of the substances. For any (Control Substance) products Import and Export *** subjected to your country government laws /control substance ACT.

Note /Government Notification:  N/A

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