MODE OF MAKING PHOSPHORIC ETHER. 6*5 



95^ of Reaumur [v>4G° F.]. An equal weight of alcohol at 

 40^ was then introduced into the reservoir, and by means of 

 the lower cocic allowed to fall drop by drop into the hot and 

 fluid phosphoric acid, The^ mixture took place with vio- 

 lence and ebullition ; it assumed a black colour, and copious 

 streaks immediately appeared on the upper part and neck 

 of the retort. 



The fire being kept up, and the distillation continued to Products^ 

 dryness, there passed into the receiver, 



1, A hundred and twenty gram. [3oz, 6dr. 53gT.] of alco- Alcohol 



hoi weakly etherised. ^^'s!^^'>' ^'^'^" 



2, Two hundred and sixty gram. [8oz. 2dr. 55gr.] of a ^ ^^^^^ ether* 

 white, light fluid, of a brisk smell, and much more ethereal eal fluid. 

 than the former. 



3, Sixty gram. [loz. 7<ii*. 26gr.] of water saturated with Water satu- 



ether, on which swam about 4 gram. r62u;rs.l of a. lemon- '^^'^'^ ^^'^^ 



1 I ,1 • 1 -.1 .-11 • ■■, ciher, and oil 



coloured tiuid, with an empyreumatic smell, very sunilar to of wine. 



that which comes after sulphuric ether, and which is com- 

 monly known by the name of sweet oil of wine. 



4, Another fluid of an insupportably fetid smell, redden- a fetid liquor 

 ing tincture of litmus, and combining with carbonate of with acetate of 

 potash with effervescence. This combination, being evapo- 

 rated to dryness, was a deliquescent salt, foliated, and per- 

 fectly similar to acetate of potash. 



The hmewater was rendered turbid, but not till toward the A little car- 

 end of the distillation. ^^^^'^ acid at 



Beside the air in the vessels, a gas was collected of a sweet ^ , . ' , 

 11 1 • • . 1 ■ r, 1 Ether in tho 



and penetrating smell, burnmg with a white flame, and state of gas. 



when burned depositing on the sides of the vessel a very 



plentiful coat of carbonaceous matter. It was a little ether 



that escaped condensation, that passed at the same time as 



the most ethereal liquid product, and a little before the 



white vapours, that announced the presence of the oil. 



What remained in the retort was a blackish, glassy mat- j^^^. . 

 ter, consisting of phosphoric acid, and a little charcoal. 



The first two products mixed together, and rectified over Rectified, 

 dried muriate of lime, at a heat of about 50° [144°], aflbrded 

 near Co gram. [loz. 7dr. 27gr.] of a liquid, which in smell 

 and taste had the greatest resemblance to the purest sulphu- Pure ether. 

 ric ether, It marked like it 60^ on Bauuie's areometer, the 

 :. Vol. XVIII— Sept. 1807. F thermo- 



