A Manual of the Detection of Poisons by Medico-chemical Analysis |
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Page 20
If the substance has previously been mixed and stirred with water , as mentioned
above , for the purpose of detecting particles of solid arsenious acid , it may be
necessary to remove part of the water by evaporation in the water - bath , before ...
If the substance has previously been mixed and stirred with water , as mentioned
above , for the purpose of detecting particles of solid arsenious acid , it may be
necessary to remove part of the water by evaporation in the water - bath , before ...
Page 21
In regard to this , experience has shown that , at the temperature to which the
mass is raised , when heated in a water , or vapor - bath , no perceptible quantity
of arsenic is lost , but that an evaporation of the concentrated liquid is not ...
In regard to this , experience has shown that , at the temperature to which the
mass is raised , when heated in a water , or vapor - bath , no perceptible quantity
of arsenic is lost , but that an evaporation of the concentrated liquid is not ...
Page 22
It then forms on evaporation , in the measure as the acid becomes more
concentrated ; and hence , in a case like this , it should never be omitted to
evaporate the liquid , and to treat the concentrated liquid repeatedly with
sulphureted ...
It then forms on evaporation , in the measure as the acid becomes more
concentrated ; and hence , in a case like this , it should never be omitted to
evaporate the liquid , and to treat the concentrated liquid repeatedly with
sulphureted ...
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 25
The ammoniacal solution , together with the washings , is then placed in a
porcelain capsule , and evaporated to dryness at a gentle heat ; the sulphide of
arsenic , if present in the precipitate , remains , mixed with the organic matter , as
a dark ...
The ammoniacal solution , together with the washings , is then placed in a
porcelain capsule , and evaporated to dryness at a gentle heat ; the sulphide of
arsenic , if present in the precipitate , remains , mixed with the organic matter , as
a dark ...
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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
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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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