Am,  Jour.  Pharm.  1 
May,  1911.  / 
Petrox  Preparations. 
217 
Mix  the  Liquid  Petrolatum,  Oleic  Acid  and  Oil  o£  Lavender 
Flowers,  in  a  flask,  then  add  the  Alcohol  and  finally  the  Stronger 
Ammonia  Water  and  agitate  thoroughly  until  clear,  warming  the 
mixture  slightly,  on  a  water  bath  if  necessary. 
Slight  warming  may  be  required  in  cold  weather,  to  promote 
the  saponification. 
A  yellowish-brown  liquid,  soluble  in  ether,  chloroform,  benzine 
and  acetone,  produces  an  emulsion  on  agitation  with  twice  its 
volume  of  water. 
The  proportion  of  the  ingredients  in  this  formula  does  not  vary 
very  greatly  from  that  in  the  present  N.  F.  formula.  The  product 
forms  a  permanent  emulsion  with  water.  The  formula  of  the  Br. 
Ph.  Codex  yields  a  preparation  that  will  not  even  form  a  good 
temporary  emulsion  with  water,  but  separates  almost  immediately. 
PETROXOLINUM  CHLOROFORMI  CAMPHORATUM. 
Camphorated  Chloroform  Petroxolin. 
Camphor  and  Chloroform  Petrox. 
Chloroform.    25  Gm. 
Camphor    25  Gm. 
Liquid  Petroxolin    50  Gm. 
Dissolve  the  Camphor  in  the  Chloroform,  then  add  the  Liquid 
Petroxolin. 
PETROXOLINUM  CADINI. 
Cade  Petroxolin.  Cade  Petrox. 
Oil  of  Cade    25  Gm. 
Liquid  Petroxolin    75  Gm. 
Mix  them. 
PETROXOLINUM  CRESOTI. 
Creosote  Petroxolin.  Creosote  Petrox. 
Creosote    20  Gm. 
Oleic  Acid    5  Gm. 
Liquid  Petroxolin    75  Gm. 
Mix  them. 
The  Br.  Ph.  Codex  directs  the  creosote  formula  to  be  only  5 
per  cent,  creosote,  yet  calls  for  20  per  cent,  of  guaiacol  in  the 
formula  with  the  latter  medication,  but  as  the  manufacturers  list 
