Chemistry Simplified a Course of Lectures On the Non Metals Based Upon the Nat
Chemistry Simplified a Course of Lectures On the Non Metals Based Upon the Nat
George Augustus Koenig
The book Chemistry Simplified a Course of Lectures On the Non Metals Based Upon the Nat was written by author George Augustus Koenig Here you can read free online of Chemistry Simplified a Course of Lectures On the Non Metals Based Upon the Nat book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Chemistry Simplified a Course of Lectures On the Non Metals Based Upon the Nat a good or bad book?
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The curing of hams, bacon, fish, by first salting and then drying them out over a smoking, smouldering wood fire, is a very ancient practice. The tar oils condense on the sur- face of the meat and keep off the microbes of putre- faction until the meat is dried out and no longer FIG. 77. subject to the action of these organisms. Tar burns freely and is used as a so-called liquid fuel. Let the tar be heated in a retort, which is furnished with a thermometer, Fig. 77, i; the neck of the re- tort r...eaching by a reducer B, the tube of a Liebig cooler L, the joint R-N made tight by a rubber band. Cold water enters from a hydrant through CARBON COMPOUNDS. 281 connecting rubber 1 into the cooler, the warm water leaving through rubber tube 2. The flame from burner F is so regulated that the liquid keeps gently boiling. We notice that the mercury in thermometer will be steadily rising, while a clear liquid collects in the graduate G. The rising thermometer can mean two things : (a) The tar is a mixture of liquids having their boiling points at different tem- peratures, (b) The tar is a uniform chemical sub- stance, which, however, breaks up by the heat into bodies of different boiling points.
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