1814.] On the Cause of Chemical Proportions, 



36s 



Explanation of some Compound Chemical Signs, 



S + 2 O. S + 3 O. — Sulphuroiii acitJ, sulphuric acid. 



M -H 2 O. M + 3 O. — Muriatic acid, oxymuriatic acid. 



2H-I-0. fjH + N + d. — Water, ammonia. 



N + O. N -f 3 O. — Nitrous oxide, nitrous gas. 



As + 3 O. As + 6 O, — Arsenic oxide, arsenic acid. 



Fe -J- 2 O. Fe + 3 O. — Black oxide of iron, red oxide of iron. 



Po 4- 2 O. Po -)- C O. — Potasli, peroxide of potassium. 



2 H + S. As + 12 S. — Sulpliureted hydrogen, supersulphuret 



of arsenic. 

 Sb + 3 S. St + 2 S. — Sulphurct of antimony, sulphuret of tin, 



2 N O + Po O.— Nitrate of potash. 



2 S O + Po O.— Sulphate of potash. 

 S O -|- C'u O. — Sulphate of copper. 



As O + Cu O. — Perarsenlatc of copper. 



1': i 



MO + H N O -f II O. — Hydrous muriate of aniiBoiiIa. 

 ,2Te 6 -H Pb 6.— Telluriate of lead. 



3 M () + Sb O.— Muriate of antimony. 



N O -f 3 I'b O, — Subnitrate of lead at a minimum. 

 M O + 2 C'u O. — Persubmuridte of copper. 



