Chemistry and Physics. 135 
8. Triethylmethane.—LaprEnpure finds that the so-called or- 
thoformic ether CH(OC,H,),, when distilled with zinc-ethyl and 
sodium, yields two products, one of which appears to be an alde- 
hyde but was not fully identified, while the other has the com- 
position C,H,,, and from the mode of its formation is doubtless 
triethylmethane, CH (C,H,),. This heptane is a colorless liquid 
having a faint petroleum odor and boils at 96° C.—Ber. D. Ch. 
Ges., v, 752 
: S. W. J. 
9. Triphenylmethane.—KeExv.é and Fraxcumont remind that 
eriv 
formulated as fatty hydrocarbons containing benzol residues. 
Marsh gas would thus give— 
CH,.C,8, Phenylmethane. 
CH,.(C,H,), Diphenylmethane. 
CH.(C,H,), Triphenylmethane. 
CAC. Bs Tetraphenylmethane. | 
The first of these is toluol, commonly regarded as methyl-ben- 
zol. The second is the substance recently investigated by Zincke, 
and termed by him benzyl-benzol. The third the authors have 
obtained by heating together to 150-155° C. a mixture of 1 mole- 
cule benzylenechloride C,H,.CHCl,, and 2 molecules of Otto’s 
mercury-diphenyl. i 
_ Triphenylmethane is a crystalline solid fusing at 92°5° and boil- 
ing at about 355°. From its benzol solution, it crystallizes in 
pure triphenylmethane as easily powdered pseudomorphs.— er, 
D. Ch és., V, 906, eo Wee 
10. Constitution of Ultramarine —UNex, recalling an obser- 
vation of Berzelius that lapis lazuli dissolves in melted salt of 
Phosphorus to a clear bead with 2 ; 
that ultramarine contains a considerable proportion of nitrogen. 
Sample of artificial ultramarine had the following composition ; 
Sulphur, 12°6 Aluminium, 14°4 
Nitrogen, 55 Silicon, 20°4 
Sodium, 14:1 Oxygen, 33° 
hger gives his reasons for supposing that the b ; 
AlSi S.N 20. The slightly binhaons mass obtained by igniting 
together, A] O,+Si0,4+4Na,8,0, +2Na,CO, and washing with 
Water which removed 4Na,S0, roe 2 InLODES dh 
» gd with salammoniac whereby NaCl was eliminated a a 
Preparation of this pi 
mospheric air,— Ber. D. Ch. Ges., V, 893. 
