SUBJECT INDEX 



569 



Carbonic oxide from carbonic 

 anhydride and charcoal, 

 142 



from smithy scale, 138 

 from steam and charcoal, 



142 

 preparation from oxalic acid, 



151 



prepared by reducing car- 

 bonates, 140, 141 

 and oxygen do not explode 



when dry, 531 

 Carbonyl chloride, 440 

 Caustic potash isolated, 55 

 Chalk, 5, 48 



action of acids on, 52 

 burning of, 49 

 , composition of, 378 

 dissolved by fixed air, 103 

 formula of, 379 

 not dissolved by liquid hydro- 

 gen chloride, 533 

 Charcoal, absorption of gases by, 



149 



fixed air production from, 95 

 heated in dry oxygen, 531 

 purification of, 149 

 purified by chlorine, 219 

 Charles's Law, 327 

 Chemical affinity, laws of, 501 

 change, conditions of, 528 

 change as reversed electrolysis, 



534 



combination, laws of, 296 



compounds, 301 



equations, 389 

 Chile saltpetre, 19 

 Chloral, 408 

 Chlorate of potash, 227 

 Chloric acid and chlorates, 228 

 Chlorides metallic, 225 

 Chlorine, 212 



an element, 220 



as an oxide, 213, 218, 222 



atomic weight of, 349 



discovery of, 211 



displaces sulphur and oxygen, 

 226 



dry, does not attack sodium 

 or other metals, 533 



Chlorine not an acid, 214 



not decomposed by charcoal, 



219, 221 

 plays the part of hydrogen, 



410 



properties of, 212 

 radical, 420 

 -water, decomposed by light, 



213 



Chlorosulphonic acid, 430 

 " Choke-damp," 64 

 Citric acid, 13 



composition of, 391 

 formula of, 393 



Classification of the elements 

 (Davy), 450; (Dumas), 

 452; (Lavoisier), 449; 

 (Mendeleeff), 457, 463; 

 (Newlands), 455 

 metals and non-metals ; 



451 



periodic, 462 

 Clay, 288 

 Coal gas, 158 

 Colcothar, 13, 60 

 Combination, chemical, 301 

 Combining-power, 434, 435 

 volumes of hydrogen and 



nitrogen, 335 

 and oxygen, 115, 121, 127, 



130. 33 

 weights, 312 



Combustion in dry gases, 531 

 of a candle, 146 

 of charcoal, Lavoisier's, 145 

 of hydrogen and oxygen, 117, 



131 



of olive oil, 146 



of organic compounds, 388, 

 391, 392, 395 



of phosphorus, 178 



of spirit of wine, 146 



oxygen and chlorine as sup- 

 porters of, 450 



tube, Morley's, 131 



with copper oxide, 394 

 Common differences, Dumas's, 



454 



Complex molecules of gaseous 

 elements, 338, 352 



