The monomer and excimer fluorescences of pyrene in dodecyl- and hexadecyl-trimethylammonium bromide micelles have been studied over the temperature range 297 to 325 K. An analysis of the quantum yield changes with concentration ...

Adsorption and heats of wetting data have been obtained for the systems benzene, naphthalene and anthracene on Graphon and Spheron 6 using some or all of the solvents cyclohexane, carbon tetrachloride and cyclohexanone, ...

Measurements of the enthalpies of decomposition by acid at 24–25°C of a number of amino-acid and peptide complexes of CuII and NiII in solution (µ= 0.100 M) have been made using a Beckman microcalorimeter. The enthalpies ...

The gas phase oxidation of sulphur dioxide in the presence of ozone and olefinic hydrocarbons has been studied at p.p.m. concentrations. The rate of oxidation was determined by measurement of the sulphuric acid aerosol ...

Infra-red and thermogravimetric studies of the chemisorption of pyridine at different temperatures have been carried out on an amorphous silica-alumina containing 14% alumina and on 3 other catalysts (9.4, 2.4 and 0.1 % ...

Methylene Blue may be regarded as a model compound of flavin co-enzymes, and its reactions in solution are interesting from a biochemical viewpoint. The reduction of Methylene Blue by dihydro-compounds, catalyzed by aliphatic ...

νmax and εmax for the n–π* transition of acetone in aqueous solution do not vary monotonically with acetone concentration. The Klotz-Worley R parameter for these solutions shows a maximum at 0.05 x2 whereas carbonyl ...

Anthraquinone-2-sodium sulphonate in “aqueous” solutions within the range pH 14 to 100% H2SO4(and also in oleum) is both reduced and hydroxylated when irradiated with u.v. or visible light. The major hydroxy-photoproducts ...

The pyrolysis of 1-ethylcyclohexa-1,4-diene has been studied from 316 to 379°C in the gas phase at pressures of around 10 Torr. Under these conditions, in an aged reaction vessel, the reaction was strictly first order, and ...

Cryoscopic measurements have been carried out in formamide for 30 1 : 1 electrolytes in the concentration range 0.002 to 0.25 mol kg-1. Activity coefficients (y±) for all the electrolytes have been evaluated using a modified ...