A Manual of the Detection of Poisons by Medico-chemical Analysis |
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Page 12
The most characteristic reactions by which arsenious acid may be recognized ,
will be given below ; and the question , “ Is the substance under examination
white arsenic ? ” is easily answered , when the poison is found in the solid state .
The most characteristic reactions by which arsenious acid may be recognized ,
will be given below ; and the question , “ Is the substance under examination
white arsenic ? ” is easily answered , when the poison is found in the solid state .
Page 14
The grains are easily recognized , and carefully picked out with a forceps , after
having poured off the supernatant liquid . To prove that the white grains , thus
obtained , really are arsenious acid , the following experiments are made : Fig .
The grains are easily recognized , and carefully picked out with a forceps , after
having poured off the supernatant liquid . To prove that the white grains , thus
obtained , really are arsenious acid , the following experiments are made : Fig .
Page 17
In examining the matter under examination for the presence of solid arsenious
acid , proper regard should at the same time be paid to the presence of metallic
arsenic , since the latter , known also under the name of “ fly powder , ” is as
easily ...
In examining the matter under examination for the presence of solid arsenious
acid , proper regard should at the same time be paid to the presence of metallic
arsenic , since the latter , known also under the name of “ fly powder , ” is as
easily ...
Page 28
... poison , partly because the arsenic , in its metallic state , is easily recognized
as such , and partly because the process of reduction can be executed in such a
manner as to exclude the possibility of its being confounded with any other metal
.
... poison , partly because the arsenic , in its metallic state , is easily recognized
as such , and partly because the process of reduction can be executed in such a
manner as to exclude the possibility of its being confounded with any other metal
.
Page 29
The process of Marsh is more simple and more easily executed than that of
Fresenius and Babo , it requires less experienced and less cautious hands for its
execution , it yields very various and characteristic proofs for the presence of the
...
The process of Marsh is more simple and more easily executed than that of
Fresenius and Babo , it requires less experienced and less cautious hands for its
execution , it yields very various and characteristic proofs for the presence of the
...
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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
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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 |
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