Colloid Chemical Studies on Metal Soaps. III

Studies of Aluminum Soaps

I t has been shown by McBain and collaborators I that aluminum soaps present characteristics somewhat akin to proteins in their lyophilic colloidal behavior. These soaps, particularly the aluminum disoaps AIOHR~, are solids which can be prepared relatively pure. No macroscopic crystals have yet been obtained but powder x-ray diffraction patterns show structures varying from almost amorphous to ...

Thermal Stability Studies on Some Metal Soaps of Hura Crepitans Seed Oil

Thermal stability studies on some metal soaps of Hura crepitans seed oil prepared by metathesis in aqueous alcohol solution were carried out. The kinetics of the decomposition was studied thermogravimetrically in the temperature range 160 – 200 C. The values of the rate constant are of the order 10min and temperature-dependent. The enthalpy of activation (∆H) of the initial stage of decompositi...

Further Studies on Chemical Evaluation of Lauha Bhasma Iii

Samples of marketed Lauha bhasma from different manufactures were evaluated chemically. Apart from the 81 -85% iron content, the 15-19% other constituents were determined therein. Ferrous ferric and total iron in a single aliquot were determined spectrophotometrically, Qualitative and chromatographic analysis indicate the presence of sodium, potassium, calcium copper and cobalt in the samples, ...

Studies on the Ion-Droplet Mixed Regime in Colloid Thrusters

Studies on the Mucin Derived from Human Colloid Breast Carcinoma.

1. A non-diffusible mucoid, showing a single peak in the ultracentrifuge, was isolated from human colloid breast carcinoma by treatment with trypsin and pepsin. The material contained threonine, leucine (isoleucine), valine, proline, glycine and glutamic acid in the approximate molar proportions 5:1:1:2:1:1. Smaller amounts of aspartic acid and serine were also found. For each 5 threonine resid...