682 
Aromadendrin. 
f  Am.  Jour.  Pharm. 
1   December,  1896. 
If  these  reactions  are  tabulated,  the  differences  are  brought  out 
more  distinctly. 
Kudesmin. 
Aromadendrin. 
H2S04 
(Concentrated) 
Dissolves    dark,    after  a 
short  time  becomes  pur- 
ple on  edges,  and  after 
half  an  hour  beautiful 
purple  liquid. 
Dissolves  yellow,  becomes 
dark  and  fades  on  long 
standing.     On  heating 
becomes  orange. 
HN03 
(Fuming  and 
ordinary) 
Dissolves    yellow,  after 
some    time  dendritic 
forms  appear  and  con- 
tinue to  increase,  being 
yellow  in  color. 
Dissolves  with  a  fine .  crim- 
son color.  (This  reac- 
tion diminishes  the  value 
of  this  test  for  ellagic 
acid. ) 
KHO 
Ivittle  change. 
Dissolves  a  fine  yellow 
color,  which  remains  per- 
sistent. 
Glacial  acetic  acid 
Dissolves  ;  on  addition  of 
small  quantity  of  water 
becomes  turbid,  crystals 
soon  form,  turbidity  is 
removed  and  the  whole 
becomes  crystallized. 
Dissolves ;  on  addition  of 
water  does  not  become 
turbid,  even  when  more 
than  an  equal  quantity 
of  water  has  been  added.  - 
Hair-like  tufts  of  crystals 
form  on  standing. 
Melting  point 
990  C.  on  the  surface  of 
mercury.    The  same  in 
water  in  fine  tube  sealed 
at  end. 
2160  C.  (uncorrected)  on 
the  surface  of  mercury. 
Closed  tube  determina- 
tion not  satisfactory. 
Heated  between 
watch  glasses 
Melts  at  a  low  tempera- 
ture to  a  clear  liquid,  and 
on    continued  heating 
chars    but   slightly,  a 
whitish  resinous  mass 
being  left. 
Melts  at  high  temperature 
and  commences  to  darken 
at  once,  very  quickly  be- 
ginning to  char. 
Chloroform 
Readily  soluble. 
Almost  insoluble. 
Chemical  formula 
^2  6^3  0O8. 
C29H26012  when  heated  to 
1200  C,  or  C29H26012  4- 
3H20  when  only  air- 
dried. 
