ACTION OF MURIATIC ACID ON SUGAR. g]Q 



joined to a receiver with two necks ; into one neck the beak the apparatus 

 of the retort was inserted, into the other a glass tube, which niadeusaof. 

 terminated in a glass air holder tilled with water. The 

 tubes were fitted through corks into their respective necks, 

 and luted perfectly air tight with bees wax, or with resin. 

 By this apparatus I was enabled to ascertain whether any 

 gas, except the air of the vessels, estate over during the 

 application of heat, at the same time that the air holder 

 had not the inconvenience that a common plain tube, ter- 

 minating under the pneumatic sheif, would have had of 

 admitting the water of the trough into the receiver, when 

 impelled to it by the sudden condensation of the aqueous 

 vapour in the reiort. -I shall now proceed to give the 

 experiments as the facts presented themselves during the 

 inquiry, being persuaded that this method is the most 

 accurate, as well as the most concise. 



Sect. II. 1st. 100 grs of muriatic acid, spec. grav. VOSO, Heat applied 

 were mixed with 100 grs of loaf sugar. A solution of the to the solution 

 sugar was effected, accompanied by the emission of a slight j lJte m ur atic 

 pungent vapour of muriatic acid. This solution being icid > r ecipi- 

 intioduced into the retort, and joined and luted to the 

 auxiliary apparatus before described, the heat of 180° F. 

 was applied by means of a water bath for half an hour. 

 After about ten minutes had elapsed, abundance of carbon 

 became deposited, and adhered to the bottom and sides of 

 the retort firmly; till finally the solution became apparently 

 solid from the copious deposition of carbon. During this No gas came 



change, not the least quantity of gas came over, exeept the over in tl ) e 



• , . , i ■ , . • «. • , , process above, 



air of the vessels, which returned again on suffering the 



apparatus to cool. 



2d. The liquid found in the receiver weighed 7 grs; The liquid d is* 



of course a large portion must have adhered to the car- tllled into lhe 

 . . -r. • i receiver con- 



bonaceous matter in the retort. J3ut in subsequent ex- siste ^ n f P yro- 



periments, on using a retort that exposed a larger surface mucj us acid 



of the liquid to evaporation, I have known it amount to 70 riat j c# 



or 80 grs, though only exposed to heat the same time. 



Still, whatever may be the quantity which comes over, it 



always consists of two acids, the muriatic and pyromucous, 



or rather the acetic a little modified. If to this liquid we 



add carbonate of lead, fcn effervescence is the result, mu- 



Q 2 riatc 



