376 
A  NEW  QUADRUPLE  SALT. 
R.  Benzoini  (purified)  2  ounces  ^ 
01.  Lavandulae       4    «       I  by  weight. 
01.  Rosmfriri        2    «  J 
Alcoholis  foitioris  9  gallons.    To  this  solution  are  added 
successively  : 
01.  Neroli, 
01.      <<     petits  grain?, 
01.  Limonis,  of  each  10  2-5  ounces, 
01.  Aurantii  Dulcis, 
01.  Limettoe, 
01.  Ber^amii,  of  each  20  4  5  ounces, 
Tinct.  Flor.  geranii  rusei  q.  s.    Macerate  for  some  weeks, 
then  fill  into  flasks. 
A  NEW  QUADRUPLE  SALT. 
Jjy  M.  Peltzer. 
By  treating  sulphate  or  acetate  of  copper  by  hyposulphite  of 
soda  there  results,  as  is  well  known,  a  double  sulphite,  which 
has  been  studied  by  M.  Lenz  and  M.  Rammelsberg.  This  hy- 
posulphite is  soluble  in  ammonia,  to  which  it  imparts  a  blue 
color,  and  when  left  to  itself  the  solution  deposits  a  mass  of  blue 
crystals  which  constitute  the  new  salt. 
It  may  be  obtained  still  more  easily  in  the  following  manner : 
Divide  into  two  equal  parts  a  mixture  of  sulphate  of  copper ; 
supersaturate  one  with  ammonia  and  the  other  with  hyposul- 
phite of  soda,  and  mix  the  two  solutions  ;  by  shaking  the  mix- 
ture, the  new  product  is  deposited  in  a  crystalline  mass  of  a 
beautiful  violet  color. 
The  latter  gives  out  a  decided  ammoniacal  odor,  especially  if 
reduced  to  powder ;  it  will  bear  a  temperature  of  100°  C. 
Heated  in  a  tube  it  loses  no  water,  but  forms  a  white  sublimate 
which  becomes  orange  by  cooling.  When  boiled  with  water 
this  sublimate  emits  ammonia,  and  on  the  addition  of  hydro- 
chloric acid  there  follows  a  disengagement  of  sulphurous  gas, 
which  shows  the  sublimated  product  to  contain  M.  H.  Rose's 
sulphate — ammon. 
Mixed  with  chlorate  of  potash,  it  denotates  with  some  vio- 
lence. 
