A Manual of the Detection of Poisons by Medico-chemical Analysis |
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Page 20
The mass is now allowed to cool ; the contents of the dish are thrown on a
moistened filter of white paper , free from smalt ; when the quantities are large , a
white linen cloth may be substituted , and the residue washed with hot water .
The mass is now allowed to cool ; the contents of the dish are thrown on a
moistened filter of white paper , free from smalt ; when the quantities are large , a
white linen cloth may be substituted , and the residue washed with hot water .
Page 23
Formerly it was laid down as a rule to set the liquid aside before filtering it , until
the whole of the sulphureted hydrogen had evaporated , and the principal object
of placing the vessel at a moderetely warm spot , was to facilitate the escape of ...
Formerly it was laid down as a rule to set the liquid aside before filtering it , until
the whole of the sulphureted hydrogen had evaporated , and the principal object
of placing the vessel at a moderetely warm spot , was to facilitate the escape of ...
Page 24
For this purpose , the filter containing the moist precipitate is spread out in a
porcelain dish , and a little water •poured on it ; the precipitate is then divided into
a thin , homogeneous paste , by means of a feather , and ammonia added , drop
by ...
For this purpose , the filter containing the moist precipitate is spread out in a
porcelain dish , and a little water •poured on it ; the precipitate is then divided into
a thin , homogeneous paste , by means of a feather , and ammonia added , drop
by ...
Page 27
The sulphide is collected on a small filter , well washed , and , finally , dissolved
in dilute ammonia by pouring the solvent , drop by drop , on the filter , as above
described . The solution , on evaporation in a porcelain dish , yields the pure ...
The sulphide is collected on a small filter , well washed , and , finally , dissolved
in dilute ammonia by pouring the solvent , drop by drop , on the filter , as above
described . The solution , on evaporation in a porcelain dish , yields the pure ...
Page 28
... with dilute ammonia , to evaporate the solution and heat the residue with nitric
acid , etc . , as mentioned in the preceding paragraph , it has been recommended
to treat the precipitate , together with the filter , directly with nitric acid , etc .
... with dilute ammonia , to evaporate the solution and heat the residue with nitric
acid , etc . , as mentioned in the preceding paragraph , it has been recommended
to treat the precipitate , together with the filter , directly with nitric acid , etc .
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A Manual of the Detection of Poisons by Medico-Chemical Analysis (Classic ... Friedrich Julius Otto No preview available - 2015 |
Common terms and phrases
added addition alcohol alkaloid ammonia analyst antimony apparatus appear applied arsenious acid becomes boiling carbonate carbonate of soda cause caustic characteristic Chemical Chemistry Chimie chloride cloth collected color completely concentrated consists containing contents copper cyanide deposited described detection dilute dish dissolved distillate drop easily edition effect escaping ether evaporation examination excess experiments filter filtrate flame formed glass heated hydrochloric acid iron lead liquid London manner Marsh mass matter means metallic method mirror mixed mixture necessary nitrate of silver nitric acid observed obtained odor operation organic matter oxide Paris passed placed poison porcelain portion potassa potassium poured precipitate prepared presence produced pure quantity reaction reduction remains removed residue resulting retort salts separated soda soluble solution substances sufficient sulphide of arsenic sulphureted hydrogen sulphuric acid takes tion trace treated treatment tube volatile vols washed whole yellow zinc
Popular passages
Page 179 - ANNALES DE CHIMIE, ou Recueil de memoires concernant la chimie et les arts qui en dependent [/rant vol.
Bibliographic information
| Title | A Manual of the Detection of Poisons by Medico-chemical Analysis |
| Author | Friedrich Julius Otto |
| Translated by | William Elderhorst |
| Publisher | H. Baillière, 1857 |
| Length | 170 pages |
| Export Citation | BiBTeX EndNote RefMan |