Jr> ■ I \MI TW'IIOSPIITMK' ACID. 
pff the etbi i to plates as soon as the ether is comple 
ived. TL In substance is much more soluble in ether 1 
Ichloioniti v: tmeutary exposure to ether- vapor causiu 
inefy. I' d h i cold water to a clear solution, from wh 
few mini i warming, tetrametaphosphimic aci< 
kited. (> ion the flask containing the chlorhydr 
placed in Lot waii and a current of dry air passed throi 
hydrochloric a given off", and on treatment with w; 
kplete Bolution oca ed, a portion being converted into a sa 
.ei. which, inder li ■ microscope, was seen to consist of sli 
[le shaped This acid was insoluble in boiling water. 
ammonia . ■•■■ 'Mi it without dissolving into an acicular am 
salt, din ble m water and insoluble in an execs 
pnia; nitric acid <s olved this salt, which was precipitated 
inia in a bul itn »hous form like precipitated alumina, wl 
:lv change This ammonium salt was very slo 
ed l>\ ho; ed sulphuric acid, and contained L'T.iXi 
■losphorus percent nitrogen P : N I : 4.2). Lac 
[ial prevent study of his finely crystallized acid, of 
of w hid: no conjecture. 
. r NO II —'J 1 1 .( ).— The \'vin> acid ma\ 
•ed by the rst ibI lod above described. It is not readily 
pure by di ompe \g most of its soluble salts, as even in 
ice of a lar ; acid more or less acid salt is deposi 
i dissoh tmmonium salt and adding a large ex< 
per ceu i id, nearly pure acid salt was obtained. 
Iso be prepa I b tiling the silver salt with much water, < 
about t e t amount of hydrochloric acid for its dec 
in, and pre< •;. further addition of the same acid to 
analytical methoc re the same as those employed for trim 
[mates, bul mucl I mger beating with strong sulphuric acr 
•y because >ater stability. 
vses i 
A' four i d ( 1 preparation: 
rave 
I : L02. 
: 1! 1 : 
: II .1 : 1 : 1 i' 
ystal water is m 
loses weight imm 
Found. 
