THE CHEMISTRY OF LIGHT PRODUCTION 119 



Table 8 

 Properties of Photogenic Substances from Cypridina 



Property 



Salting out 



By saturation NaCl 



By half saturation MgSO^ . . . 

 By saturation MgSO* 



By saturation MgS04+acetic 



acid 

 By half saturation (NH4)2S04 

 By saturation (NH4)2S04 — 



By saturation (NH4)2S04+ 

 acetic acid 



Soluhility in 



Methyl alcohol 



Ethyl alcohol 



90 per cent. 

 70 per cent. 

 50 per cent. 



Propyl alcohol 



Isobutyl alcohol 



Amyl alcohol 



Benzyl alcohol 



Acetone 



90 per cent 



70 per cent 



50 per cent 



Ethyl acetate 



Ethyl propionate 



Ethyl butyrate 



Ethyl valerate 



Ethyl nitrate 



Glycerine 



Glycol 



Ether 



Chloroform 



Carbon disulfide 



Carbon tetrachloride 



Benzol 



Toluol 



Xylol 



Petroleum ether 



Anilin 



Glacial acetic acid 



9 



