Practical Test book of Chemistry
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(40 minims) cold water). Reduces also an ammoniacal silver solu- tion.
(5) A mixture of equal parts sugar and Picrotoxin is colored red by the addition of sulfuric acid (Reagent 21).
Test for Pilocarpin, CiiHi 6 N 2 O 2 .
Pilocarpin is an alkaloid found in jaborandi; the official salt is the hydrochlorate, and is in small, white crystals, odorless, and having a faintly bitter taste; deliquescent on exposure to damp air; very soluble in water and in alcohol; almost insoluble in ether or chlorofo...rm. The aqueous solution (1 in 100) of the salt is neutral or has a faintly acid reaction upon litmus paper.
(1) A characteristic reaction, had in common with cocain, is that Pilocarpin reduces calomel to Hg (blackens it) when 0. 010 gm. (J gr. ) of the alkaloid or the hydro- chlorate and 1 gm. (15J grs. ) of mercurous chlorid are triturated together and moistened by the breath.
(2) Another reaction is the behavior of the precipitate obtained from Reagent 12 in a diluted solution of the hydrochlorate; the amorphous precipitate sinks to the bottom, in the course of a day, in oily drops.
What to read after Practical Test book of Chemistry?
You can find similar books in the "Read Also" column, or choose other free books by John Dabney Palmer to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
(40 minims) cold water). Reduces also an ammoniacal silver solu- tion.
(5) A mixture of equal parts sugar and Picrotoxin is colored red by the addition of sulfuric acid (Reagent 21).
Test for Pilocarpin, CiiHi 6 N 2 O 2 .
Pilocarpin is an alkaloid found in jaborandi; the official salt is the hydrochlorate, and is in small, white crystals, odorless, and having a faintly bitter taste; deliquescent on exposure to damp air; very soluble in water and in alcohol; almost insoluble in ether or chlorofo...rm. The aqueous solution (1 in 100) of the salt is neutral or has a faintly acid reaction upon litmus paper.
(1) A characteristic reaction, had in common with cocain, is that Pilocarpin reduces calomel to Hg (blackens it) when 0. 010 gm. (J gr. ) of the alkaloid or the hydro- chlorate and 1 gm. (15J grs. ) of mercurous chlorid are triturated together and moistened by the breath.
(2) Another reaction is the behavior of the precipitate obtained from Reagent 12 in a diluted solution of the hydrochlorate; the amorphous precipitate sinks to the bottom, in the course of a day, in oily drops.
What to read after Practical Test book of Chemistry?
You can find similar books in the "Read Also" column, or choose other free books by John Dabney Palmer to read onlineMoreLess
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