A Manual of the Detection of Poisons by Medico-chemical Analysis |
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Page 15
This part of the tube is now held horizontally in the very small flame of a common
spirit lamp , in such a manner that the spot where the arsenious acid is placed
may remain beyond the flame . When the charcoal is heated to redness , the
open ...
This part of the tube is now held horizontally in the very small flame of a common
spirit lamp , in such a manner that the spot where the arsenious acid is placed
may remain beyond the flame . When the charcoal is heated to redness , the
open ...
Page 24
Sulphide of arsenic and the organic substances dissolve in dilute ammonia , and
the other metallic sulphides , which might have been precipitated by the
sulphureted hydrogen , remain undissolved ; only a small quantity of sulphide of
...
Sulphide of arsenic and the organic substances dissolve in dilute ammonia , and
the other metallic sulphides , which might have been precipitated by the
sulphureted hydrogen , remain undissolved ; only a small quantity of sulphide 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 ...
Page 26
The mass is treated with water ; if antimonate of soda was present , this remains
undissolved , and is separated by filtration ; the liquid is strongly acidulated with
dilute sulphuric acid , precaution being taken that no loss is incurred by spirting ...
The mass is treated with water ; if antimonate of soda was present , this remains
undissolved , and is separated by filtration ; the liquid is strongly acidulated with
dilute sulphuric acid , precaution being taken that no loss is incurred by spirting ...
Page 35
Having thus obtained a mirror or a distinct coating , the flame of the lamp is made
smaller , so that the tube remains no longer incandescent . In consequence of
this the flame of the escaping gas immediately assumes a bluish - white color ...
Having thus obtained a mirror or a distinct coating , the flame of the lamp is made
smaller , so that the tube remains no longer incandescent . In consequence of
this the flame of the escaping gas immediately assumes a bluish - white color ...
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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 |
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