Formic and Acetic Acids as Poisons *A paper presented before the Indian Science Congress, 1944.

Seasonal Variation in Crime *A paper presented before the Indian Science Congress, 1944.

Separation of Carboxylic Acids from Aqueous Solutions using Hollow Fiber Membrane Contactors

Separation of formic, acetic, and propionic acids from the aqueous stream using membrane solvent extraction has been studied using three different membrane contactors made of polysulfone (PS), polyethersulfone (PES), and polyvinylidene fluoride (PVDF) using two different solvents; including ethyl acetate (EA) and diisopropyl ether (DIPE). The efciency of the membrane and e...

The estimation of fatty acids of intermediate chain length by partition chromatography.

In 1942 Smith (1) demonstrated that the silica gel partition chromatogram, first developed by Martin and Synge (2), would separate a mixture of formic, acetic, propionic, n-butyric, and n-valeric acids in chloroform-l per cent butanol into its component acids. In 1945 Ramsey and Patterson (3) confirmed this work and presented a partition chromatographic method for the qualitative separation and...

A Note on Cholera Outbreaks (1944-45) in the Singur Health Centre Area, Bengal, with Special Reference to Control Measures *Presented before the Medical and Veterinary Section of the 33rd session of the Indian Science Congress, held at Bangalore on the 2nd January, 1946.

The gross fatality rate is 25 per cent for the series of outbreaks reported here. This will appear high if the effect of the control measures is judged without the details. The most important single factor in the control of cholera is notification. It will be noticed from table I that in certain cases the information was received very late; for instance, in the case of Panchghora outbreak it wa...

An atom-economic approach to carboxylic acids via Pd-catalyzed direct addition of formic acid to olefins with acetic anhydride as a co-catalyst.

An effective Pd-catalyzed hydrocarboxylation of olefins using formic acid with acetic anhydride as a co-catalyst is described. A variety of carboxylic acids are obtained in good yields with high regioselectivities under mild reaction conditions without the use of toxic CO gas.