258 
BERBERINA  AND  ITS  SALTS. 
but  little  soluble,  in  golden  yellow  laminae,  which  after  drying 
have  the  composition  €4211^9^010,  0^2^^  (NO^jSO. 
Acid  succinate  of  berberina  appears  after  several  recrystalli- 
zations  in  brownish  needles,  affording  a  yellow  powder,  soluble 
in  water  and  alcohol ;  its  formula  is  =C42Hi9NOiq,  HO,  CgH^Og. 
The  bitartrate  yields  silky  yellow  needles,  soluble  in  130  parts 
of  cold  water  and  strong  alcohol ;  it  is  composed  of  C^gH-^gNOio, 
HO,  CgH^OjQ  -{-  HO,  the  water  of  crystallization  is  driven  off 
at  212^  F. 
The  binoxalate  consists  of  minute  brownish  needlesin  wart- 
like groups  and  yields  a  yellow  powder.* 
By  double  decomposition  and  recrystallization  from  alcohol, 
the  hydrocyanate  is  obtained  as  brownish  yellow  scales,  yielding 
a  greyish  powder,  which  is  anhydrous  after  drying  below  110*^ 
C,  and  decomposes  spontaneously  when  in  the  moist  state.  The 
hydrosulphocyanate  is  in  yellow  or  brownish  yellow  needles, 
little  soluble  and  anhydrous. 
Hydrochlorate  of  berberina  readily  yields  crystallizable  double 
*  There  is  evidently  a  mistake  in  some  of  the  author's  calculations  and 
formulas,  which  erroneously  give  to  some  salts  2  equiv.  water  of  constitution 
and  to  the  picrate  1  equiv.  Tartaric,  succinic  and  oxalic  acids  being  bi- 
basic,  require  only  2  equiv.  of  base,  not  3  equiv.  as  figured  out  by  the  au- 
thor; so  does  picric  acid  require  but  1,  not  2  equiv.  I  annex  here  my 
recalculations,  together  with  the  author's  results  and  his  calculations  for 
an  additional  equiv.  HO. 
Henry.  Henry. 
Bisuccinate. 
C50    300  63-29 
24  5-06 
14  2-96 
136  28-69 
H24 
N 
Ol7 
Calcul. 
62-11 
5-17 
Found.  Bitartrate. 
61-99    Cso    300  58-25 
5-80 
H24 
N 
O21 
HO 
24 
14 
168 
9 
4-66 
2-72 
32-62 
1-75 
Calcul. 
58-25 
4-85 
2-17 
1-71 
Pound. 
57-69  58-60 
5-18  4-99 
3-16 
1-62 
474  100-00 
515  100-00 
Binoxalate, 
C46   276  61-88 
H20     20  4-49 
N       14  3-14 
O17    136  30-49 
Henry. 
Calcul.  Found. 
60-66  60-78 
4-61  4-67 
Picrate. 
C54   324  55-38 
H21    21  3-59 
N4     56  9-57 
O23  184  31-46 
Henry. 
Calcul.  Found. 
54-54  54.83 
3-70  3-93 
446  100-00 
585  100-00 
The  formulae  as  recalculated,  it  will  be  seen,  agree  pretty  well  with  the 
author's  results,  though  some  of  the  salts  may  possibly  retain  IHO  at  100 
or  110=^  C.  J.  M.  M. 
