- Optical Activity....
- Specific Gravity ....
- Temperature of Distillation
- Action in the Cold on Coal-tar
Pitch
- Behaviour with Absolute Phenol
at 20°
- Behaviour on Agitating 3 vols.
with 1 vol. Castor Oil
- Bromine Absorption (Dry).
- Behaviour with H 2 S0 4
Turpentine Oil.
active
•860 to -872
156° to 180°
readily dissolves
homogeneous
mixture
homogeneous
mixture
203 to 236
almost entirely
polymerised
Rosin Spirit.
usually none
•856 to -880
gradual rise
readily dissolves
homogeneous
mixture
homogeneous
mixture
184 to 203
polymerised
Petroleum Naphtha.
none
•700 to -740
gradual rise
very slight action
no apparent
solution
two layers
of nearly equal
volume
10 to 20
very little action
Shale Naphtha.
none
•700 to -750
gradual rise
very slight action
homogeneous mix-
ture, crystallises
on cooling
like petroleum
naphtha
60 to 80
considerable
action
Coal-tar Solvent
Naphtha.
none
•860 to ;875
gradual rise
readily dissolves
homogeneous
mixture
moderate action
w
p
M
GQ
K
O
M
CQ
CQ
OQ
