Treatise On the Falsifications of Food, And the Chemical Means Employed to Detect Them ...
Treatise On the Falsifications of Food, And the Chemical Means Employed to Detect Them ...
Mitchell, John, 1785-1859
The book Treatise On the Falsifications of Food, And the Chemical Means Employed to Detect Them ... was written by author Mitchell, John, 1785-1859 Here you can read free online of Treatise On the Falsifications of Food, And the Chemical Means Employed to Detect Them ... book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Treatise On the Falsifications of Food, And the Chemical Means Employed to Detect Them ... a good or bad book?
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Average of nitrogen in insoluble matter from 100 grains of tea 3*40625 grains. From the foregone analyses, it will be seen that the results afforded by the different samples come very close to each other for each kind. We are, therefore, tolerably safe in assuming the average of the nimibers for each class as the standard of compa- rison for that class. Peligot, in his analyses, gives different numbers for the amount of soluble and insoluble matters contained in various kinds of tea, he invaria...bly making the soluble matter higher than the author has done. He AND ITS ADULTERATIONS. 175 ever, completely certain of the accuracy of the lents in his particular samples, as the numbers re those determined by many analyses, amount of nitrogen, theine, and ash, cor- l tolerably well with those obtained by Peligot. wiour of an infusion of Tea vnth reagents, — ^The 1, whether made from black or green tea, be- verj nearly in the same manner under like 3nt. In colour it is from yellowish to deep- according to the class of tea it is prepared with, sion slightly acid to litmus paper.
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