Browsing by Author "Ptoton, Brian M."
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Characterization of Clays from selected sites for Refractory Application
Lomertwala, H. M.; Njoroge, Peter W.; Opiyo, Sylvia A.; Ptoton, Brian M. (2019-11)Clay is a stony or earthy mineral aggregate composed of fine-grained minerals, which are plastic at appropriate water content and hardens up when fired. Clay soils have various mineral groups such as kaolinite, smectites, ... -
Effect of Acid Treatment on the Chemical Properties of Clays from Selected Sites in Murang’a and Nyeri counties, Kenya
Lomertwala, Hassan M.; Njoroge, Peter W.; Opiyo, Sylvia A.; Ptoton, Brian M. (2020-11-30)Assessing improvement on the quality of clay has been conducted by treatment with different concentrations of hydrochloric and oxalic acid. This project intended to assess the effect of acid treatment on the elemental ... -
Synthesis, Reactivity and Stability of Aryl Halide Protecting Groups towards Di-Substituted Pyridines
Ptoton, Brian M. (2016)This paper reports the synthesis and reactivity of different Benzyl derivative protecting groups. The synthesis and stability of Benzyl halides, 4-methoxybenzyl halides, 3,5-dimethoxybenzyl halides, 3,4-dimethoxybenzyl ...