Elements of Inorganic Chemistry, Descriptive And Qualitative
The book Elements of Inorganic Chemistry, Descriptive And Qualitative was written by author James H James Henry Shepard Here you can read free online of Elements of Inorganic Chemistry, Descriptive And Qualitative book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Elements of Inorganic Chemistry, Descriptive And Qualitative a good or bad book?
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Phosphorus; 6. Sul- phur. The first four determinations may be made thus : Place in a weighed porcelain crucible about 5e of the coarsely-powdered sample, and heat at 100° for several hours. Weigh, and note the loss of weight as " Moisture." Lute on the cover of the crucible by means of a paste of wood ashes, leaving a very small opening in one side. Allow the luting 148 EXERCISES IN CARBON. to dry, and weigh the whole. Now heat to redness for one hour; weigh, and the loss in weight equals the ..."Volatile matter." The last weight minus the weight of crucible and luting equals the weight of "Coke." Now remove the cover, carefully clean off the luting, aijd weigh again ; then burn the residue in the crucible, and weigh, noting the loss of weight as " Fixed carbon." The last weight minus the weight of crucible equals the "Ash." The value of a coal partly depends upon the amount of fixed carbon it contains. (See Sulphur and Phosphorus.) 8. For valuable information concoi'ning the varieties of coal, coal analysis, etc., see Dana's System of Mineralogy, pp.
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