Chromate (CrO4 2-) adsorption was investigated on kaolinite (0.2-2 ~m) saturated with NaC104 over a range of pH. Adsorption increased with decreasing pH because of protonation of chromate and/ or variable charge sites on kaolinite. Chemical pretreatment to remove noncrystalline and crystalline oxide contaminants affected the magnitude ofCrO42adsorption, but not the pH range over which CrO42adso...

1. Uranium and cantharidin, in the smallest doses capable of producing a distinct nephritis, tend to increase the elimination of nitrogen, probably by stimulating tissue katabolism. 2. Uranium, cantharidin, and potassium chromate, in larger doses, impair the power of the kidney to eliminate nitrogen; but this may not be evident unless the animal is on a high nitrogen diet, and the impairment, w...

DRY MAGNETIC ASSISTED IMPACTION MIXING OF SUB-MICRON BORON AND BARIUM CHROMATE FOR A TIME DELAY COMPOSITION by Ryan Barrow The objective of this investigation is to improve the mixture homogeneity of, Boron and Barium Chromate, a delay composition called T-10, using a novel dry mixing technique, called the Magnetic Assisted Impaction Mixing (MAIM). Two additional mixing methods, ultra-sonic mix...

Abstract Unreported graft copolymer of Meth Acrylamide (MAam) and our previously prepared fully characterized chitosan nanoparticles (CNPs) as a starting substrate has been synthesized under nitrogen atmosphere using potassium chromate /mandelic acid unique redox pair. This was done to see the impact both CNPs with respect well-dispersed nano sized particles, large surface areas, biodegradabili...

SiO2-supported silyl chromate catalyst is an important industrial catalyst for production of high grade HDPE pipe materials. The control of the short chain branch (SCB) distribution using this catalyst system is still a great challenge. In this work, ethylene and 1-hexene copolymers were synthesized using SiO2-supported silyl chromate catalyst combined with triisobutylaluminium (TIBA), triethyl...