Imperial Chemical Industries

About: Imperial Chemical Industries is a based out in . It is known for research contribution in the topics: Alkyl & Catalysis. The organization has 8189 authors who have published 7809 publications receiving 190252 citations. The organization is also known as: Imperial Chemical Industries Ltd.

Carcinogenic action of alkylating agents.

Abstract: A few years ago it became increasingly apparent that the biological effects of various sulfur and nitrogen mustards closely resemble those of X rays. Observations upon their local and systemic toxicity-in particular, their hematological effects in normal subjects and, later, in leukemic patientstheir mutagenic activity, their inhibitory action upon the growth of experimental tumors, and their cytotoxic effects upon proliferating cells, all pointed to this conclusion. Several of these compounds were therefore tested for carcinogenicity, with the result that the first direct evidence of carcinogenic activity in alkylating agents was obtained.

Plastics container manufacture

Abstract: An oriented plastics container, e.g. bottle, is heat set by holding an unheat set container against the heated walls of a split mould by means of gas under pressure, and thereafter cooling the container, e.g. by cooling the mould or by displacing said gas with a cooling liquid under pressure, and then removing the container from the mould. The liquid may be that to be packaged in the container.

Catalytic reactions using zeolites

Abstract: A catalyst comprising a novel zeolite NU-87, is useful in a wide variety of hydrocarbon conversion reactions including isomerisation, transalkylation and alkylation.

The determination of surface active agents in solution

Abstract: An accurate direct titration method for the determination of anion and cation-active compounds has been developed using new partition end points based on the solubility in organic solvents of complexes formed between anion-active agents and methylene blue, and between cation-active agents and bromophenol blue respectively. The new method has been compared with known methods.

A microchromatographic method for the detection and approximate determination of the different penicillins in a mixture.

Abstract: MARTIN and co-workers1 extended their technique of partition chromatography of the amino-acids to the micro-scale by using filter paper instead of silica gel as the support for the stationary phase (water). We have found that the modified partition chromatogram for penicillin using buffer as the stationary phase2 can also be adapted to the micro-scale by the same change in support. Colour reactions are not readily applicable to locate the positions of the invisible developed zones, so that a microbiological procedure has been used both to identify and to determine approximately the types and amounts of penicillins resolved on the buffered paper strip. The procedure is as follows.