Certain brominations and chlorinations have been studied calorimetrically, the following being the results GH4 + Brz = CZH4Br2 -29,058 * 300 cal.-29,413 * 200 cal. H2C=CH-C2H6 + BrS = CHzBr-CHZBr-CzHstruns-HsC-CH=CH-CHs + Brz = cis-HaC-CH=CH-CHa + Bra = CHa\ CHs 29,585 * 200 cal. CCHs-CHBr-CHBr-CHs -29,075 * 200 cal. dl-CHs-CHBr-CHBr-CHs -30,177 * 200 cal. ,C=CH-CHs + Brz = CH")CHBr-CHBr-CHs -30,394 * 200 cal. CHsCzH4 + Clz = CzH&! l * -43,653 * 120 cal.

The solubility of carbon dioxide in 99.8% D20 at 25°has been measured relative to its solubility in H20 at the same temperature. In terms of the Ostwald coefficient the solubilities are the same within less than 1%. On a molal basis this means that carbon dioxide is 0.902 times as soluble in D20 as in H20.