Am.  Jour.  Pharm. ) 
Feb.,  1882.  / 
Chemical  Notes. 
69 
Organic  Chemistry. — On  the  Production  of  Oxalic  Acid  from 
Paraffin  Oil. — J.  Galletly  and  J.  S.  Thomson  treated  a  paraffin  oil^ 
sp.  gr.  about  '800,  obtained  by  the  destructive  distillation  of  shale 
with  twice  its  volume  of  nitric  acid,  sp.  gr.  1*3.  The  action  is  at  first 
violent,  but  has  to  be  completed  with  the  aid  of  a  gentle  heat.  After 
the  reaction  is  finished  the  liquid  separates  into  three  layers.  The 
lower  one,  consisting  of  the  excess  of  the  acid,  on  evaporation  at  a 
gentle  heat,  yielded  a  crop  of  yellow  crystals  which,  after  recrystalli- 
zation,  were  obtained  in  a  colorless  condition.  They  proved  to  be  pure 
oxalic  acid.  The  authors  identified  the  body  by  its  reaction  and  ana- 
lyses of  the  acid  and  its  calcium  salt. — Chemical  News,  Dec.  9,  1881, 
p.  284. 
On  the  Preparation  of  Strontium  Saccharate  in  the  Working  of 
Molasses  and  Syrups. — C.  Scheibler  has  patented  a  process  for  the 
extraction  of  sugar  from  beet  root  molasses  by  the  aid  of  strontium 
salts,  which  are  now  found  so  abundantly  in  Germany  (see  this  Jour- 
nal, 18^1,  p.  607).  At  a  boiling  temperature,  either  with  or  without 
the  aid  of  pressure,  tribasic  strontium  saccharate  is  precipitated,  is 
separated  from  the  liquid  at  the  same  temperature,  and  washed  with 
hot  water.  This  strontium  saccharate  is  decomposed  by  water  at  a 
lower  temperature  into  a  less  basic  saccharate  and  free  strontium 
•hydrate.  The  former  can  then  be  used  again  in  the  separation  of 
sugar  from  fresh  portions  of  juice.  This  strontium  process  is  to  be 
used  as  a  substitute  for  the  "  elution process  with  calcium  saccharate. 
—  Chem.  Industrie,  Oct.,  1881,  p.  302. 
On  Some  New  Dye-colors,  Compounds  of  Resorcin  with  Vegetable 
Acids. — The  brilliant  result  of  Baeyer's  experiments  on  the  union  of 
phenols  like  resorcin  with  poly  basic  acids  like  phtalic  acid,  giving  to 
the  world  the  beautiful  dyes  fluorescein,  eosin,  coeruleine,  and  galleine 
have  induced  other  experimenters  to  investigate  the  behavior  of  resorcin 
at  high  temperatures  with  several  of  the  vegetable  acids.  Thus  Fraude 
-has  examined  the  question  of  forming  a  compound  of  resorcin  with 
tartaric  and  citric  acids.  One  molecule  of  tartaric  acid  was  heated 
for  two  hours  to  165°  to  168°C.  with  two  molecules  of  resorcin  with 
the  addition  of  1  per  cent,  of  sulphuric  acid.  The  result  was  a  resin- 
ous mass,  which  after  purification  by  solution  in  warm  soda  lye,  pre- 
cipitation with  hydrochloric  acid,  repeating  the  operation  if  necessary, 
and  then  filtering  through  bone-black  and  evaporation  over  sulphuric 
acid,  yielded  a  dark  olive-green  lustrous  powder.    This  dissolves  with 
