Gala' apples trees were treated with kaolin (Surround) in mid-July, and fruit were sampled 1 and 7 days after treatment. Apples were gently rinsed with cold deionized water to remove loose surface material. Small sections of cuticle tissue were shaved from the fruit surface with a razor blade and flash frozen on an aluminum block held at -190oC with liquid N2. The tissue was freeze-dried, coate...

In 1961, 553 Cornish china clay workers had been exposed to kaolin dust for periods exceeding five years, and evidence of kaolinosis was seen in 48 (9 %). No kaolinosis was found in men who had been exposed for less than five years. Workers in the more heavily exposed jobs of milling, bagging, and loading showed a prevalence rising from 6% in those with between five and 15 years' exposure to 23...

SMUTZ, E. R., E. H1RSCH AND H. L. JACOBS. Caloric compensation in hypothalamic obese rats. PHYSIOL. BEHAV. 14(3) 305-309, 1975. The present study explored the influence of pelleted diets on adjustment to caloric dilution in hypothalamic obese rats. Medial hypothalamic lesioned and normal rats were maintained on a high fat diet until the static stage of hyperphagia was reached, They were given t...

A number of historical texts are investigated to ascertain the optimum conditions for the preparation of synthetic ultramarine, using preparative methods that would have been available to alchemists and colour chemists of the nineteenth century. The effect of varying the proportion of sulphur in the starting material on the colour of the final product is investigated. The optimum preparation in...

Indigo Carmine (IC) is a synthetic dye that might promote irritations, vomiting, and diarrhea when orally consumed in high concentrations. Copper dangerous heavy metal tends to accumulate organisms' cells as pollutant. Hyperproduction of IC accumulation copper water could cause an environmental problem must be adequately addressed. Kaolin found abundant on Bangka Island. Based XRD analysis, Isl...

Two easily accessible local materials, kaolin, and sediments from the reservoir of a dam, were evaluated to compare their efficiencies as adsorbents for As. The kaolin sample was composed mainly by kaolinite quartz, while contained illite, montmorrillonite quartz. Also, iron, calcium magnesium minerals present minor components. adsorption experiments performed using batch equilibrium techniques...

Abstract The paper presents an experimental study on the effect of plastic fines content undrained behavior and liquefaction susceptibility sand–fines mixtures under monotonic loading. results triaxial compression tests conducted Hostun sand with varying amount (0–20%) type (kaolin calcigel bentonite) are presented. specimens were prepared different initial densities using moist tamping method ...

Suspensions of clays in organic liquids change considerably in theological character from liquid to liquid or when additions of a second liquid are made; thus, for example when about 15 per cent. volume of ethyl alcohol was added to a dispersion of a sample of bentonite in water the specific viscosity and thixotropy (as measured 9 by rate of the sol-->gel transition) increased to a maximum in s...

Efficiency of solar based disinfection of Pseudomonas aeruginosa (P. aeruginosa) in rooftop harvested rainwater was evaluated aiming the potability of rainwater. The rainwater samples were exposed to direct sunlight for about 8-9 hours and the effects of water temperature (°C), sunlight irradiance (W/m2), different rear surfaces of polyethylene terephthalate bottles, variable microbial concentr...

The surface area of the individual phyllosilicates (clay minerals) in Athabasca oil sands determined from XRD crystallite size measurements was found to be comparable to the bulk surface area measured by ethylene glycol monoethyl ether adsorption. The primary phyllosilicates are kaolin and illite but the large surface area is imparted by varying degrees of smectitic interstratifications in the ...