"^Au'J'usV  1882°^"}   Analytical  Researches  and  Investigations.  403 
ing  water  and  hydrogen ^  but  the  transformation  is  incomplete.  By 
operating  in  a  closed  vessel,  at  310°C.,  the  reactions  are  more  com- 
plete ;  the  results  obtained  may  be  expressed  by  the  two  following 
equations,  4C15H24O  =  C20H30O  -f  €^^11^^)^  +  4H,  and  C40H62O3  = 
^^oHeoOg-f  H2O. 
The  oil,  C20H30O,  boils  at  240°C.  Phosphoric  anhydride  trans- 
forms it  into  a  hydrocarbon,  C,oH^4,  boiling  at  175  to  180°C.,  and 
having  the  odor  of  thyme  (cymene). 
The  product,  C^qHqJJ.^,  is  a  thick  liquid,  distilling  at  about  340°C. 
The  third  product,  QgHg^Og,  is  found  in  the  liquids  boiling  above 
350°C.,  and  has  the  consistence  of  honey. 
The  oil,  CjgHggO,  must  show  the  same  deportment  on  heating,  for  in 
the  products  of  decomposition  of  oil  of  sandal  liquids  are  found  boil- 
ing at  245  to  260°C.,  and  by  the  dehydration  of  these  oils  hydrocar- 
bons are  obtained  boiling  at  185  to  200°C.,  of  which  the  analysis  cor- 
responds to  a  hydrocarbon,  C^oHjg,  containing  more  hydrogen  than 
cymene. 
Action  of  acids, — On  heating  the  oiL  of  sandal,  under  pressure,  at 
150°C.,  with  half  its  weight  of  glacial  acetic  acid,  for  7  or  8  hours,  a 
liquid  is  formed  which  boils  between  280  and  300°C.  It  is  a  mix- 
ture of  tAvo  products,  of  whicli  one  boils  at  280  to  285°C.,  the  other 
at  298 °C. 
The  first  has  the  formula  CgoH^gO,  and  is  the  oil,  2C,5H240,  which 
has  lost  one  molecule  of  water. 
The  second  product  is  the  acetic  ether,  Ci7H2s02,  of  the  oil,  C15H26O. 
It  possesses  a  somewhat  fruity  odor. 
Hydrochloric  acid  produces,  likewise,  at  125°C.,  with  the  oil  of 
sandal,  an  hydrochloric  ether  boiling  at  about  275°C.,  but  the  com- 
plete reaction  is  more  complex  than  with  acetic  acid.  The  latter  reac- 
tions the  author  considers  as  confirming  the  composition  assigned  to  the 
oil  of  sandal,  and  demonstrate,  moreover,  that  the  oil,  €^^112^0,  has  the 
properties  of  an  alcohol. 
As  to  the  second  oil,  C15H24O,  which  by  its  properties  approaches 
the  class  of  aldehydes,  it  is  considered  probable  as  being  the  aldehyde 
of  the  alcohol,  C,,H,,(J.~EejK  de  Fharm.,  No.  6,  1882,  ])p.  252-254. 
