344  Various  Bleaching  Liquids.'  { Am ju<iyM>86arm" 
pheres,  Moissau  succeeded  in  condensing  the  gas.  Strange  to  say, 
when  liquid  pentafluoride  of  phosphorus  does  not  affect  glass.  In 
the  liquid  state  pentafluoride  of  phosphorus  contains  75'398  per 
cent,  of  fluorine. — Phar.  Zeitung,  1886,  p.  216. 
Synthesis  of  Coniine. — By  the  action  of  paraldehyde  on  a  picoline, 
at  a  temperature  of  about  250°  C,  Ladenburg  obtained  an  oil,  spar- 
ingly soluble  in  water,  and  boiling  at  190-195°  C,  which,  by  reduc- 
tion, yielded  a  base  having  the  same  composition  as  coniine  (C8H17N), 
also  posse  sing  the  same  odor  and  solubility  in  water,  and  the  boiling 
point  =166-1 70°  C.  The  hydrochlorate  fuses  at  203°  C.  The 
double  salt  formed  with  iodide  of  cadmium  ([C8H17NHI]2CdI2)  is 
similar  to  the  characteristic  double  salt  formed  with  coniine.  Lange's 
a  picoline  is  obtained  from  pyridine,  and  pyridine  can  be  obtained  in 
several  ways  by  synthesis,  hence  an  accurate  synthesis  is  wanting. — 
Chem.  Zeitung,  x,  p.  63. 
Solution  of  Caoutchouc. — According  to  Beiersdorf,  gum  elastic  can 
be  dissolved  in  ether  by  the  addition  of  a  small  quantity  of  oleic  acid. 
The  resulting  solution,  when  applied  to  the  skin,  is  more  elastic  and 
more  agreeable  than  collodion. — Phar.  Centralhalle,  1886,  p.  221. 
VARIOUS  BLEACHING  LIQUIDS. 
By  G.  Lunge  and  L.  Landolt. 
Chlorozon. — This  substance,  manufactured  by  passing  chlorine 
mixed  with  air  into  caustic  soda,  and  for  which  a  high  value  as  a 
bleaching  agent  has  been  claimed,  is  actually  a  solution  of  hypo- 
chlorous  acid  in  sodium  chloride,  with  traces  of  free  chlorine  and  of 
sodium  chlorate.  Chlorous  acid  and  chlorine  peroxide  are  absent. 
Comparative  experiments  showed  that  the  omission  of  the  air-stream 
has  no  effect  on  its  composition. 
Products  of  the  Action  of  Chlorine  on  Magnesia. — Dry  or  nearly  - 
dry  magnesium  hydroxide  does  not  yield  a  bleaching  powder  when 
treated  with  chlorine.  When  chlorine  is  passed  into  a  milk  of  mag- 
nesia at  15°,  or  even  at  0°,  more  than  half  of  the  absorbed  gas  goes 
to  form  chlorate  (with  the  corresponding  chloride),  the  remainder 
producing  hypochlorite.     At  higher  temperatures,  or  on  warming 
