106 



Prof. Louis Henry on iKe Polymerization 







Mole- 

 cular 

 weight. 



Density. 



[0 2 H 4 



[o 2 H 4 Cl 2 ... 



C 3 H 6 



• 

 3 H 6 01 2 ... 



V 

 / 



C 5 H I0 O ... 



C 5 H I0 C1 2-" 



f Acetic aldehyde 



44 



»» 

 99 



58 

 >> 



113 



>> 



86 

 »» 



86 



141 



II 



0-801 at 0°. 



0-898 „ 



1-256 at 12°. 



1-189 at4°-3. 



0-8074 at 21°. 



0-859 at 0°. 



0-814 „ 



M43 at 10°. 



1-1584 at 0°. 



1-117 at 0°. 



1-201 at 15°. 



0-822 at 0°. 



0-824 „ 

 f 0-8132 at 13°. 

 \ 0-8099 ,, 

 [0-813 at 20°. 



1-05 at 24°. 



1-058 at 9°. 



106 at 5°. 



1 Ethylene oxide 



j Ethylene chloride 



\ Ethylidene chloride 



f Propionic aldehyde 



-1 Propylene oxide 



1 Acetone 



( Aldehvdic chloride 



J Propylene chloride 



1 Acetonic chloride 



L Normal propylene chloride 

 j" Valeric aldehyde 



Amvlene oxide 



(^ Various Ketones 



( Aldehydic chloride 



- Amylene chloride 



Acetonic chloride 





Now the difference between the density of the chlorides and 

 oxides of the metals in general is exactly the inverse of the 

 above, for the density of the oxides is notably greater than 

 that of the apparently analogous chlorides, thus : — 







Mole- 

 cular 

 weight. 



Density. 



J Ca01 2 



Mendipite 



Ill 



56 

 136 



81 

 183 

 128 

 278 

 223 

 491 

 724 

 471 



416 



271 

 216 

 198 

 143 



287 



232 



129-75 

 74-75 



2-16 to 2-205. 



3-08 to 3-20. 



2-753 (Bodeker). 



5-7334 (Karsten). 



3-625 (Bodeker). 



6-9502 (Karsten). 



5802 (Karsten). 



9-2 to 9-5. 



7-00 to 7-10 (Berzelius). 



7*21 (Rammelsberg). 



6-56 (Schiff), 7-14 (Boullay). 

 f 8-95 (Karsten). 

 1 10-69 (Herapath). 



5 4 (Karsten). 

 11-29 (Roger & Dumas). 



3677 (Karsten). 



5-749 to 6093 . 



5-59 (Schroder), 

 f 7-143 (Herapath). 

 1 8-2558 (Karsten). 



2-52 (Schiff). 



6398 (Bergmann). 



\CaO 



fZnCl 2 



[ZnO 



JCd01 2 



\CdO 



fPbCL 



JPbO.. 



1 PbCl 2 +PbO 

 [PbCl 2 +2PbO 

 f Hff.,CL 



Matlockite 



(Crystallized) ... 

 (Fused) 



] Hg o 



Ar o2 v 



fHfiOL 



1 HgO 



f CuJX 



] Cu.£> 



Fused 



rAffoOL 



I XJ -&2 V/ 2 



i Ag o 





1 ""62^ 



TNiCL 



\NiO 





