β Scribed by Matilda Kolandaisamy; Barry D. Batts; John W. Smith
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
A method of measuring the density of bed-moist brown coals based on their plastic properties is described and the feasibility of using the method for determination of the ash yield of the coal is evaluated.
A new method is described for determining the mineral-matter content of coals, based on low-temperature ashing in an oxygen plasma. Unwanted side-reactions can occur during ashing, particularly oxidation of pyrite to haematite and fixation of organic sulphur as sulphate. These effects cannot be tota
Wavelength-dispersive x-ray fluorescence (WDXRF) was used for the determination of carbon in coal and ash samples. A rhodium side-window tube was used for C Ka excitation and a synthetic multilayer crystal (2d = 12.2 nm) for excited radiation analysis. The samples, undiluted or diluted with boric ac