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 16
16 is situated heated , by holding this end of the tube , slightly inclined upwards ,
into a small alcohol flame , a bluish white coloration of the flame will be observed
where the arsenic vapor enters the flame , and the characteristic alliaceous ...
16 is situated heated , by holding this end of the tube , slightly inclined upwards ,
into a small alcohol flame , a bluish white coloration of the flame will be observed
where the arsenic vapor enters the flame , and the characteristic alliaceous ...
Page 33
... all the atmospheric air may be supposed to have been expelled from the
apparatus , the escaping gas is kindled , and the flame made to strike against a
dish or a saucer of glazed white porcelain , which is held horizontally into the
flame .
... all the atmospheric air may be supposed to have been expelled from the
apparatus , the escaping gas is kindled , and the flame made to strike against a
dish or a saucer of glazed white porcelain , which is held horizontally into the
flame .
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 ...
Page 37
But if the reverse is the case , the flame of the burning gas becomes colored , and
spots may be obtained on porcelain during the process of reduction . Spots on
porcelain are very readily obtained if the amount of arseneted hydrogen is large ...
But if the reverse is the case , the flame of the burning gas becomes colored , and
spots may be obtained on porcelain during the process of reduction . Spots on
porcelain are very readily obtained if the amount of arseneted hydrogen is large ...
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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 |