Va7i Mons. '315 



muriatic acid is in hyper-combination to the oxygen ; it is an 

 oxygenate oxidinulated by the acid, and in which the excess of 

 acid is saturated by the water performing the functions of oxide. 

 The muriatic acid gas is muriate of hi/drose : by addingwater until 

 the acid undergoes no more displacement in its caloric, there are 

 formed a muriate with excess of water and a true hydrinulated 

 salt; with still more water, caloric is fixed, and the acid be- 

 comes dissolved. Chlorine ought to have its complement of 

 oxygen, orlje oxgvenously dissolved in its muriatic acid, in order 

 to give physical mnrhs of acidity : it is thus tliat, in sulphurated 

 hydrogen gas, the sul])huric acid of the sulphur ought to be liy- 

 drogenouslv dissolved in ordsir to give the same marks ; in the 

 sulphur it forms sulphate of hydrogen ; in hydrogenated sulphur 

 it is sulphate with excess of hydrogen, or hydrogenulated sulphate. 

 The concentrated sulphuric acid is sub-hydrinulated sulphate of 

 hydrose; with enough of water to prevent it from heating it is 

 'hydrinulated sulphate of hydrose; and with still enough of water 

 not to cool any more, it is acid, or sulphate oF hydrose dis- 

 solved ; and so on with respect to the other combustibles and 

 acidifiable burning bodies {comhurans) and their acids. I am 

 impatient to be made acquainted with the new work of Sir 

 H. Davy, when completed. 



" M. Kastner informs me that he is about to publish a Journal 

 adapted to the use of the friends of manufactures in Germany; 

 and that he is drawing up for publication at Easter, A Re- 

 port on the Progress of various Nations in Chemistry, v/liich Re- 

 port will be annual. M. Kastner has made a great number of 

 experiments with iodine, which will appear in the next number 

 of Schweiger's Journal. Among other things he has found that 

 iodine is a reagent for sugar as it is for starch ; for while water, 

 a solution of gum, spirit of wine, vinegar, &c. turn brown with 

 iodine, the solution of sugar remains colourless; some cheese- 

 like flakes merely being deposited. It results that with those 

 two substances thi^ oxygenated iodic acid forms oxygenated : .dates 

 fully saturated, for it is only the super-combination whic- gives 

 the colour. 



" When recently attending to the production of fulminating 



silver by a nitric acid obtained from the acid oi the residues of 



Iphuric ether, I foiuid out a favourable proce>-s f^r procuring 



iiiiatic ether: Take a residue as from the manufaciure of 



' li an ether ; add to it the half of the first (juantitv (^'alcohol, 



1 heat without boiling for an hour in a curved retort well 



U'd. Afterwards mix with the, liquid vvliich from acidinulated 



illat of ether has become neutral sulphate, as much sea-salt 



I as the primitive sulphuric acid can decompose. This acid h 



1 substituted 



