SPECIFIC GRAVITY OF GASES. 61 



Gases and vapours Specific gravities. 



Aqueous vapour ...... -625 H ---- 19-05 ------- 9 



Alcohol vapour ....... 1-620 C 2 H 3 . 49-37 ...... 23 



jEther do ......... 2-570 C 4 H 5 O 79-67 ...... 37 



Cyanogen .......... 1-815 C 2 N.. 56-47 ...... 26 



Sulphurous acid ...... 2-222 S . . . . 67-72 ...... 32 



Sulphuric acid ........ 2 777 S .... 84-72 ...... 40 



Protoxide of nitrogen . . 1-527 N . . . . 47-26 ...... 22 



Nitrous acid ........ 3-19 N ____ 98-80 ...... 46 



Nitric do ........... 3-75 N ____ 116-14 ...... 54 



Hydrogen gas ........ 0-0690 H ---- 2-13 ...... 1 



Phosphuretted hydrogen 1-185 PH.. 36-74 ...... 17 



Nitrogen gas ........ -972 N ---- 30-16 ...... 14 



Ammonia ............ - 590 N H 3 . 18-19 ...... 8.5 



Hydrochloric acid .... 1 270 Cl. H . 39-36 ...... 18.5 



Hydrocyanic do ....... -942 C 2 N H 29-30 ...... 13.5 



Binoxide of nitrogen .. 1-041 N.... 32-13 ...... 15 



Hydriodic acid ...... 4-409 I H .............. 63.5 



Hydrobromic do ..... 2-812 Br. H ............ 40.5 



Mercury vapour ...... 6-944 Hg ............... 100 



Protochloride of mercury 8-204 Cl. Hg ............. 118.5 



Bichloride of ditto ... 9'431 CPHg. .. ____ . ..... 136 



Bromide of do ....... 9-665 Br. Hg ............. 140 



Oxygen ............ 1-111 O .. 34-60 ...... 16 



Phosphorus vapour . . . 4-444 P ................ 64 



Arsenic vapour ...... 10-625 As ............... 152 



Sulphur do ......... 6-666 S . ............... 96 



