433 
Preparations  in  Powder  Form. 
f  Am.  Jour.  Pharm. 
1  September,  1902. 
oleo-stearates  and  oleo-palmitates  we  find,  that  in  them,  we  have  an 
invaluable  class  of  substances  that  act  as  helpful  bearers  for  an 
innumerable  amount  of  active  medicaments. 
The  use  of  the  above  in  their  plain,  uncombined  state,  however, 
is  very  little  desired,  but  they  are  most  usually  used  in  combination 
with  other  substances  which  find  ready  application  in  medicine  and 
surgery  and,  as  such,  have  a  vast  sphere  of  adaptability.  These 
medicaments  are  substances  which  are  capable  of  uniting  directly 
with  them  without  altering  the  properties  of  either  in  the  least,  but 
enhancing  their  therapeutic  value  instead,  which,  while  in  such  a 
state  of  combination,  have  a  field  of  application  wide  and  extensive. 
In  the  preparation  of  the  oleo-stearates  and  oleo-palmitates,  as  here 
suggested,  the  base-zinc  is  made  use  of,  but  potassium,  sodium, 
magnesium  or  calcium  along  with  the  antiseptic  properties  oi 
lead,  copper  and  mercury  can  also  be  incorporated  to  suit  circum- 
stances. • 
But  as  zinc  furnishes  a  base  most  desirable  in  all  directions,  the 
same  will  be  made  use  of  in- the  following  formulae,  for  it  has 
chemical,  physical  and  therapeutic  virtues  not  possessed  by  the 
others.  In  preparing  the  following  solutions,  glass  instruments 
should  be  used  throughout  the  entire  process  as  indicated  in  each 
case,  so  as  to  insure  satisfactory  results : 
Pulverized  Oleo-Stearate  of  Zinc. 
First  prepare  a  solution  of  zinc  as  follows  : 
SOLUTION  ZINC  ACETATE. 
Zinc  acetate  grs.  200 
Water  distilled  gij 
Mix  and  dissolve  to  a  clear  solution,  strain  if  any  insoluble  particles  are 
noticeable. 
Right  here  the  fact  should  be  mentioned  that,  if  a  desire  is  created 
for  any  other  base  than  the  one  suggested,  as,  for  instance,  copper, 
lead  or  mercury,  the  acetates  of  these  may  be  used  instead  of  the 
zinc  acetate. 
The  process  is  carried  out  as  formulated  and  the  results  will  cor- 
respond to  conditions  prevailing.  Next  proceed  to  prepare  the 
following  : 
