416 Scientifie Intelligence. 
te m well defined salts. odie um forms a rors similar 
to the first jenmnibad salt of platinum, and also forming amber 
yellow pris This does not, however, unite with another atom 
of triethylphosphine. When triethylphosphine i is added to a solu- 
tion of auric chlorid, AuCl,, in alcohol a colorless yd Soon salt 
is obtained which has the formula , P(C,H,),AuCl. Compounds 
of an exactly analogous composition were obtained with the chlo- 
rid of platinum, emer Pe gold, and nigh remmeertS 
tes Rendus, \xx, 1380, lxxi, 20 
4, sili “ange sO pats: —By the simultaneous scan ‘of 
zinc-ethyl and sodium upon ethyl-silicie monochlorhydrine, SiCl(O 
Cc 
at 158°°5 C. and having the formula, Si(C,H,)(OC,H,),, 
they term tribasic silico-propionic ether. A concentrated toluti ion 
in a state of purit y. By oo i silico propionic ether at 180° ros 
in a closed tube with chlorid of acetyl, the authors obtained a mix- 
ture of acetic ether and a body having the formula SiC,H, 3. 
By treating with water the part of this liquid which boils at 90°- 
110°, chlorhydric acid and a white gelatinous body are formed ; 
is last is the hydrate of silico-propionic acid. When dried at 
100° the acid forms a white amorphous powder greatly resembling 
silicic oxyd, but easily distinguished from it by its combustibility. 
When heated it burns like tinder, disengaging combustible gases. 
~ —— : oT in water, but dissolves in hot qa 
fore to be a weak acid oreo to silicic acid, and presents the 
first known case of a silicic acid containing carbon. Its formula 
shows that it contains the group, SiO,H, which may be terme: 
xyl, and which is the analogue of carboxyl, CO,H. It is 
_ easy to see also that it forms one term of a group of nag 
Fo ete Rend Ixx, 1407. > 
lie aleohol.—LresEN and ipa ate suc- 
y 
onary that of ns ers acid, It boils at 184°-185° at 736™, 
1 normal calcic valerate is mixed with normal calcie formate, 
