Chemical Science. 



43» 



Nitrous oxide 44.398 



Nitric oxide 30.212 



Nitrous A 76.449 



Nitric A 108.503 



Hyposulphurous A 48.265 



Sulphurous A 64.291 



Hyposulphuric A 144.609 



Sulphuric A 80.317 



Phosphoric A 143.003 



Chloric A 151.071 



Perchloric A 167.097 



Iodic A 326.543 



Carbonic A 44.302 



Oxalic A 72.578 



Boracic A 139.743 



Silica 92.548 



SeleniousA 111,315 



Selenic A 127.341 



Arsenious A 230.790 



Oxide of Chromium 160.845 



Chromic A 104.462 



Molybdic A 143.999 



Tungstic A 237.700 



Protoxide Antimony 306.565 



AntimoniousA 161.296 



AntimonicA 338.617 



Oxide Tellurium 161.296 



Columbic A 417.878 



Titanic A 94.409 



Protoxide Gold 414.441 



Peroxide Gold 446.493 



Oxide Platina 226.806 



Rhodium 228.689 



Palladium 130.552 



Silver 232.637 



Protoxide Mercury 421.752 



Peroxide Mercury 218.889 



Protoxide Copper 142.856 



Peroxide Copper 79.441 



Protoxide Uranium 450.553 



Peroxide Uranium 917.132 



Oxide Bismuth 474.495 



Protoxide Tin 133.806 



Peroxide Tin 149.892 



Protoxide Lead 223.484 



Minium 462.995 



Peroxide Lead 239.511 



Oxide Cadmium 127.691 



Zinc 80.649 



Nickel 75.271 



Cobalt 75.161 



Peroxide cobalt 166.349 



Protoxide Iron 70.389 



Peroxide Iron 156.804 



Protoxide Manganese 73.045 



Deutoxide Manganese 162.117 



Peroxide Manganese 89.071 



Manganesic acid 194.161 



Protoxide Cerium 108.132 



Peroxide Cerium 232.289 



Zirconia 182.775 



Yttria 80.425 



Glucina 154.325 



Alumina 102.942 



Magnesia 41.404 



Lime 57.056 



Strontia 103.735 



Baryta 153.351 



Lithia 36.501 



Soda 62.646 



Peroxide Sodium 141.318 



Potassa 94.541 



Peroxide Potassium 126.593 



Sulphate Potassa 174.859 



Protosul. Iron 150.706 



Persul. Iron 397.754 



Protochloride Iron 125.303 



Perchloride iron 321.545 



Protochloride Mercury .... 476.666 

 Perchloride of Mercury .... 273,803 

 Ferrocyanate of potash .... 370.008 



Alum 951.378 



Feldspar . , 567.673 



Ann. de Chim.y xxxviii. 426. 



8. Test of the presence of Oxygen. — This test, which is recom- 

 mended by M. Kastner, consists of a protoxide of iron. A stop- 

 pered flask is to be tilled with hot water, and the water then boiled 

 by a spirit lamp ; 5 parts of recent protosulphate of iron for every 

 100 of water is to be added, the ebullition continued for a minute, 

 and then ammonia added until in excess ; the flask is then to be 

 closed, the precipitate allowed to fall, when the liquid must be re- 

 moved by means of a glass syphon ; the precipitate is to be washed 

 with boiled water, and finally hot alcohol poured into the flask 

 until it is full. 



When this test-oxide is to be used, a small quantity is to be taken, 

 out rapidly in a little spoon and put into a jar filled with water. 



