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 21
The liquid is poured into a spacious beaker - glass , or a flask , and a current of
washed sulphureted hydrogen gas slowly passed through it ; when the liquid is
perfectly saturated with gas , it is heated to about 140° - 170° F . , which is done
by ...
The liquid is poured into a spacious beaker - glass , or a flask , and a current of
washed sulphureted hydrogen gas slowly passed through it ; when the liquid is
perfectly saturated with gas , it is heated to about 140° - 170° F . , which is done
by ...
Page 23
... and well washed , at first with water containing some sulphureted hydrogen . *
To remove other metals which might be mixed with the sulphide of arsenic ,. *
Formerly it was laid down as a rule to set the liquid aside before filtering it , until
the ...
... and well washed , at first with water containing some sulphureted hydrogen . *
To remove other metals which might be mixed with the sulphide of arsenic ,. *
Formerly it was laid down as a rule to set the liquid aside before filtering it , until
the ...
Page 24
The ammoniacal liquid , which is of a dark - brown color , is strained through a
small filter , and the residue carefully washed with ammoniacal water . This
residue has to be examined for antimony , lead , copper , mercury , etc . The
treatment of ...
The ammoniacal liquid , which is of a dark - brown color , is strained through a
small filter , and the residue carefully washed with ammoniacal water . This
residue has to be examined for antimony , lead , copper , mercury , etc . The
treatment of ...
Page 27
... 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 sulphide . $ 14 . Fresenius recommends to ...
... 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 sulphide . $ 14 . Fresenius recommends to ...
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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.