ANALYSIS  OF  RED  SANDAL  WOOD. 
T 
viously  saturated  with  ammonia,  when  a  white  precipitate  occurs. 
These  characters  indicate  tartaric  acid. 
By  subsequent  quantitative  experiments  the  proportion  of 
these  constituents  were  determined  to  be  as  follows,  viz : 
2390  parts  of  red  sandal  wood  exhausted  by  cold  water  af- 
fords 251  parts  of  soluble  matters  constituted  thus  : 
Volatile  oil  and  free  acetic  acid        .  46  parts. 
Coloring  matter,    .        .        .        .  90  " 
Albumen,     .....  9  « 
Tartaric  acid,        ....  1  " 
Sugar  and  gum,    .        .        .        .  80  " 
Acetate  of  potassa,        ...  9  " 
Acetate  of  lime,    .                .        .  10  " 
Salts,  (chlorides,  sulphates,  &c.,)       .  6  " 
251 
Action  of  alcohol  on  the  wood  exhausted  by  water. — Red 
sandal  wood,  after  exhaustion  by  water,  was  dried,  and  then 
treated  first  with  alcohol  (95  per  cent.)  cold,  and  afterward  at 
boiling,  till  thoroughly  exhausted,  and  the  mixed  blood  red 
liquids  evaporated  to  dryness.  The  dry  extract  digested  with 
water  was  not  affected  by  it.  It  was  then  dried  and  treated 
with  ether,  which  dissolved  a  resinous  matter  and  a  little  color- 
ing matter.  Water  precipitates  the  coloring  matter  and  resin 
together  from  the  tincture  and  cold  ether  separates  the  resin 
from  the  coloring  matter. 
1986  parts  of  wood  exhausted  by  water  then  yielded  to  alco- 
hol 311  grs.  of  extract.  This  was  redissolved  and  treated  with 
a  large  excess  of  lead,  and  the  precipitate  occasioned  well  washed 
with  alcohol.  The  liquors  evaporated  to  dryness  yielded  61 
parts  of  resin.  The  lead  precipitate  dissolved  in  acetic  acid  was 
diluted  with  water,  which  precipitated  the  coloring  matter,  and 
retained  the  lead  in  solution.  When  washed  and  dried  the  co- 
loring matter  amounted  to  250  parts. 
Action  of  hydrochloric  acid. — The  wood  exhausted  by  water 
and  alcohol  was  treated  with  cold  hydrochloric  acid  15°  B. 
during  twenty-four  hours,  and  renewed  till  it  ceased  to  dissolve. 
The  acid  solution  was  super-saturated  with  ammonia,  which  oc- 
casioned a  precipitate,  and  which  was  collected,  well  washed, 
