Chemistry And Its Relations to Daily Life; a Textbook for Students of Agriculture And Home Economics in Secondary Schools
The book Chemistry And Its Relations to Daily Life; a Textbook for Students of Agriculture And Home Economics in Secondary Schools was written by author Louis Kahlenberg Here you can read free online of Chemistry And Its Relations to Daily Life; a Textbook for Students of Agriculture And Home Economics in Secondary Schools book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Chemistry And Its Relations to Daily Life; a Textbook for Students of Agriculture And Home Economics in Secondary Schools a good or bad book?
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Plant tissues also contain fats and oils, and what has been said in Chapter IX as to the chemical nature of such com- pounds should be carefully reviewed in this connection. It will be recalled that though fats and oils, like the carbohy- drates, consist of carbon, hydrogen, and oxygen, yet they are an entirely different class of compounds. The fats and oih are mi.xtures of esters of oleic, stearic, palmitic, and other fatty acids with glycerine acting as the base. The glycerine is set PLANT LI...FE AND WHAT IT PRODUCES 251 free when the fats are heated with caustic alkahes, as in the process of soap making. Fats and oils contain a very much higher percentage of carbon than the carbohydrates. The organic fats and oils met in common life are partly of animal and partly of vegetable origin. So iallow, lard, butter, goose and chicken grease are of animal origin; v/\n\e olive oil, cotton- seed oil, linseed oil, etc., are obtained from plants. Fats and oils are readily soluble in either chloroform, carbon tetrachloride, carbon bisulphide, gasoline, or ether.
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