ANALYSIS OF NEUTRAL SALTS, 27 I 



tassium decompose 37*8 of ainoionia. Tlie potassium then ammotua by 

 forms an oxiciule, combining with 10*5 of oxigen, and it also potassium. 

 reduces the ammonia to the state of oxidule. But these 

 two oxidules must be combined in such proportion, that 

 one contains twice or thrice as much oxigen as the other. 

 If we admit, that the oxidule of potash contains thrice as 

 much oxigen as that of ammonia, it follows from this calcu- 

 ation, which cannot be perfectly accurate, that the potas- 

 sium must produce a quantity ofhidrogen exceeding in a 

 very trifling degree what it evolves fron^ water. 



Table of the Analyses in the little Treatise I have the Honour 

 to transmit to you. 



Oxides of lead. 



Yellow Lead, 100 parts: oxigen, 7'7 Analysis of va- 



^ , ' ' & > # « jjQUs salts, 



Red . 11-1 



■-' " Brown ■ ' ■ 15'4 



Sulphuret of lead .... Sulphur, 15*445 



Sulphate of lead .... Sulphuric acid, 100: oxide of lead, 

 280 



Muriate of lead Acid, 100; oxide of lead, 421 '4 



Carbonate of lead ...j Acid and water, l6'5: oxide of 

 lead, 83"5 



Sulphurous acid Sulphur, 100: oxigen, 99'8 



Sulphuric acid 1496 



Sulphate of barytes Acid, 100: base, 194 



Sulphite of barytes — — 86*53: water 4*25: base^ 



209*22 



Carbonate of barytes*. — - 21*6: base, 78*4. 



Sulphuret of copper. • Copper, 100: sulphur, 25*6 



Oxidule of copper •« . • Copper, 100: oxigen, 12*5 



Oxide of copper 25 



Sulphate of copper Acid, 49*1* oxide, 50*9 



Sulphate of oxidule of 



copper • — — - 100: oxidule, 183 



Muriate of oxidule of 



copper — — 100: 278*4 



Neutral muriate of ox- 

 ide pf copper ...... —-- 100: oxide, 148*7 



Submnriate 



