Leather Industries Laboratory book of Analytical And Experimental Methods
Leather Industries Laboratory book of Analytical And Experimental Methods
H R Henry Richardson Procter
The book Leather Industries Laboratory book of Analytical And Experimental Methods was written by author H R Henry Richardson Procter Here you can read free online of Leather Industries Laboratory book of Analytical And Experimental Methods book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Leather Industries Laboratory book of Analytical And Experimental Methods a good or bad book?
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per liter of copper sulphate, allowed to cool in the solution, and ** saddened '' by boilmg with bichromate solution of }-i grm. per liter. QUAUTATIVE RECOGNITION OF MATERIALS, 157 Table I. Preliminary Classification of Tanning Materials. Class i. (Catechol Tannins.) Br. Water produces a Precipitate. Iron- Alum gives Greenish Blacks. Copper Sulphate followed by Ammonia in Excess. Precipitate redissoWes. Precipitate does not redissolre. I a 1/3 Table II. Table III. Class 2. (Mixed and Doubtful.)... Br. Water produces a Precipitate. Iron- Alum gives Blue or Purplish Blacks. Table IV. Class 3. (Pyrogallol Tannins.) Br. Water produces no Precipitate. Iron-Alum gives Blue Blacks. Table V. 158 LEATHER INDUSTRIES LABORATORY BOOK. PQ * g P s ^ a . O T3 ■£ c .It o a;
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