396 Scientific Intelligence, 
benzine, C,,H,., ethyl benzine and hydrid of ethylene, 
+©,H,, hydrid of ethyl-hexylene and hydrid of ethylene, C,H 
C : : 
: the normal or complete product is hydrid of decylene, ©, ota 8 
Perchlorinated naphthalin, C,.H,, yields as chief product hy- 4 
drid of ethylhexylene, the reaction being e 
Cz,Cl,+32HI = C,-H,,+0,H,+sHCl+16l,. a 
Anthracene, C,,H,,, yields as chief product hydrid of tetra — 
decylene: ee 
C,,H,,+10H, = C,,H,,; : 
a notable quantity of hydrid of heptylene and smaller quantities of 
the hydrids of hexylene and ethylene. With an insufficient quan 
tity of hydracid, anthracene gives toluene, C,,H,, traces of ben- 
zine and hydrid of ethylene, and a small quantity of what may be 
_ Alizarine, C,,H,0O,, in presence of a large excess of hydracid 
1s completely changed into saturated carbids, among which are the — 
hydrids of octylene and hexylene. pe 
= Phthalic acid, C,,H,O,, yields as principal product hydrid of 
__ heptylene, C, 4H,,, and a small quantity of hydrid of octylene, 
the last being the normal product : 
‘Terephthalic acid, C, ,H,0,, yields hydrid of heptylene: 
€,sH,0,+-7H, = C,,H,,+0,0,+2H,0,. 
—Bull. de la Societe Chimique de Paris, 1868, p. 265. 
ce 
3. 
- phid 
in 
In contact with sulphuric acid the crystals are decolorized, ant o 
adding water colorless transparent oily drops of persulphi : 
drogen are repeated, Which after some time are resolved int 
- Society, xvi, p. 437, 
