104 
ON  SYRUPUS  FERRI  PHOSPHATIS. 
adjusting  the  tube  in  the  solution  (acid  and  iron)  contained  in 
a  porcelain  dish,  apply  the  heat  of  a  spirit  lamp  to  the  flask,  and 
and  in  a  few  minutes,  the  muriatic  acid  gas*  passing  off  into  the 
solution,  dissolves  the  remaining  iron,  and  gives  a  beautiful 
clear  solution ;  which,  even  upon  the  addition  of  the  alcohol, 
renders  the  filtering  of  it  entirely  unnecessary,  unless  the  iron 
should  contain  some  insoluble  impurity. 
Tincture  of  chloride  of  iron  prepared  as  above,  has  a  specific 
gravity  of  1010,  and  yields  thirty  five  grains  of  per-oxide  of 
iron  to  the  fluid  ounce. 
I  find,  upon  inquiry  among  some  of  our  best  pharmaceutists, 
that  they  all  have  experienced  the  same  difficulty  in  not  being 
able  to  dissolve  the  iron  ;  and  I  therefore,  have  submitted  this 
simple  plan,  hoping  it  may  be  deemed  worthy  of  an  insertion  in 
your  useful  and  interesting  journal. 
January,  1855. 
SYRUPUS  FERRI  PHOSPHATIS. 
By  T.  S.  Wiegand. 
The  experience  of  many  physicians  having  accorded  to  the 
phosphates  decided  remedial  powers,  it  was  presumed  that  a  for- 
mula, which  would  exhibit  them  in  a  scientific  manner,  would  be 
acceptable  to  most  of  the  readers  of  this  journal.  The  follow- 
ing formula  has  been  used  quite  freely  by  the  writer,  and  with 
such  satisfactory  results  (pharmaceutical^  only,  of  course,  I  can 
speak  of)  that  I  offer  it  with  confidence  to  the  notice  of  our  pro- 
fession. 
Ferri  Sulph.  Cryst.  grs.  500 
Sodse  Phos.    do.  grs.  1300 
Acidi  Chlorohydrici  feiv. 
Sacchari  gvii. 
Aquae  q.  s. 
Dissolve  the  phosphate  of  soda  in  two  pints  of  water,  filter  if 
necessary ;  then  make  a  solution  of  the  ferruginous  salt,  add  the 
phosphate  of  soda  to  the  iron  solution  as  long  as  it  occasions  a 
precipitate,  which  should  be  washed  with  recently  boiled  cold 
*  Muriatic  acid  losing  its  gas  by  heat  until  the  specific  gravity  is  reduced 
to  about  1095. 
