A Manual of the Chemistry of the Carbon Compounds

359 THE CHEMISTRY OF
f Ttf IT
Bmyl-VreaGOl NH?c H CH«) i8 produced by acting on the
cyanate with alcoholic ammonia. It forms white needles, melting at
144°. It does not combine with nitric acid, but yields with hydrochloric
acid and platinum chloride an insoluble precipitate.
mbtmyUUrea CO { HC'I^CH!) is formed ' to ether with oarl)on
8
dioxide, by heating the isocyannmte with watet in sealed tubes, or
by heating benzyl-urea :-—
9 m f NH2
200 {
It crystallizes from alcohol in white needles, melting at 167°.
C H OEL, 1
Benzyl SulphocarUmide, or Benzyl Mustard-oil a ing f ^'
benzylamine is dissolved in carbon disulphide, it combines with it,
forming hnnyUsulphocarbamic acid; on heating this compound with
alcohol and mercuric chloride, it yields benzyl mustard-oil :—
HgOl, - NJ + HgS + 2 HC1
It is a crystalline solid, melting at 243°, and smelling like waterfOH
CH
cress. This compound, is isoraeric with tolyl mustard-oil N -J JJ, * 8
which has beeu obtained by an analogous reaction from solid toluidine,
Tolyl mustard-oil forms large pointed prisms, melting at 26°, boiling
at 237°, and smelling like the oil of anise-seed.
FflOSPttOKUS BASKS OF BENZ1O,
The monopliospliine and diphosphine are formed togotlier by
heating benzyl chloride with phosphonium iodide and zinc oxide to
160°, The two compounds are separated, like the corresponding
methyl bases (see page 96).
Bemylp/wspMne C8H6.CH».NHSI is a colourless, very refractive liquid,
boiling at 180°, and possessing a very peculiar and persistent odour.
When exposed to the air, it absorbs oxygen no rapidly, that the
temperature rises to above 100°, and thick white fumes are formed.
The hydriodide crystallizes in long white needles, and is readily
decomposed by water,
Dihensaitphosphine ((LrTB.CHjJjNH crystallizes from hot alcohol in
glistening, stellate needles, having neither taste nor smell.