Magnesium Chlorochromate. 
Cl. 
20 
Chromium Chlorochromate. 
Cl. 
Cr0 9 
CrO. 
i 
0 
1 
0 
i 
j 
Mg 
1 
Cr." 
1 
0 
i 
1 
0 
Cr0 2 
i 
j 
Cr0 2 
i 
1 
Cl. 
1 
Cl. 
These substances may also be thus represented : 
Oro/jS 1 
I 
Cr" 
I 
Cr0 2 | C1 
The relation of the new oxychloride to chromyl dichlo- 
ride is thus very apparent. Three molecules of chromyl 
dichloride when heated are resolved into one molecule of 
chromium chlorochromate and four atoms of chlorine. 
Cr0 2 | o 
I 
Mg 
f I 
Cr0 2 \ 0 
( Cl 
