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Arrhenius parameters and chemical reactivity
Experimental data on different reactions commonly used in the study of organic compounds have been studied and the parameters of the reaction rate...
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Anthraquinone and anthrone series
9-Aminobenzanthrone, which has been prepared earlier by a tedious synthesis, has now been prepared from 3-bromobenzanthrone by nitration to...
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Studies on niobium and tantalum
It has been found that in aqueous solutions, on vigorous boiling, the 2-tartrato-2-niobates and the corresponding free acid are degraded, giving rise...
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Studies on collagen
When collagen fibres are treated with acidic and alkaline solutions of inorganic salts, oriented crystallisation of the salts takes place inside the...
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Studies on niobium and tantalum
This paper details the work on a new class of compounds called the tartratoniobate. In an intensive investigation on the alkali niobates, some...
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Naphthoquinone series
The constitution of the garnet-red compound (B) obtained by the reaction of 2:3-dichloro-1:4-naphthoquinone with ethyl acetoacetate in the presence...
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Synthetic experiments in the benzopyrone series
It is established that the condensation of 2-hydroxy-4:6:2′-trimethoxy phenyl benzyl ketone and its 3-methyl derivative with ethyl formate as well as...
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Citrinin—Part I
The constitution (I) proposed in 1931 by Coyne, Raistrick and Robinson for citrinin, an antibiotic produced by Penicillium citrinum , and the...
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The chemical behaviour of sulphur compounds
Certain sulphides, in presence of a small amount of moisture were found to catalyse the reaction between hydrogen sulphide and sulphur dioxide. The...
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Peroxy titanium oxalate
1. The method of the preparation of the normal peroxy titanium oxalate TiO 2 C 2 O 4 , 3·5 H 2 O is described. If an excess of hydrogen peroxide is not...
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The relation between magneto-optic rotation and optical dispersion in some halogen acids and their salts
The verdet constant and optical dispersion of the halogen acids and some of the univalent halide salt solutions have been measured at various...
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Synthetical experiments in the chromone group
Santal, a constituent of sandelwood ( Pterocarpus santalinus Linn.) and of barwood ( Baphia nitida Lodd.), has been shown by Robertson, Suckling and...
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X-ray studies of wood, lignin and wood-cellulose
The structure of teakwood has been examined by means of X-rays. It has been found that in the annual ring of the heartwood there is almost perfect...