W^f^ 



33S 



ï. A. H. SOHltEINBMAKERS. 



Tableau 6. 

 Composition en poids en pourcents à 30^ 





Solution 



Eeste 





N°, 











T^liasp solidf 





% CrO' 



7„ Na^O 



% CrO' 



%-Wft'O 



X ildoC Ol,'i.ll,lL 



1 







+ 42 



_ 





NaOH.rPO 



2 



2,001 



41,436 



5,831 



42,639 



NaUIi.jro + Z^ 



3 



2,039 



40,89 



— 



— 



^, 



4 



2,906 



37,495 



— 



— 



'/', 



5 



4,233 



35,509 



27,522 



36,567 



^1 



(i 



6,498 



32,90 



— 



— 



^i 



7 



6,638 



32,343 



27,721 



.34,598 



^i 



8 



10,209 



29,695 



33,682 



33,541 



'/; 



9 



15,192 



27,063 



37,07 



32,199 



*Z, 



10 



10,215 



29,386 



15,478 



28,409 



Z, +/'/.,. 13 H '0 



11 



8,932 



28,494 



18,085 



26,886 



Z^.Viiï'O 



12 



8,619 



26,913 



— 



— 



11 



13 



10,737 



25,545 



17,742 



26,171 



11 



14 



13,123 



23,905 



18,.566 



25,917 



11 



15 



17,734 



23,127 



— 



— 



11 



16 



18,44 



22,86 



— 



— 





17 



19,26 



22,98 



21,535 



25,312 



Z'I.A3jru + /.All'O 



18 



17,836 



24,209 



26,242 



24,976 



■»z^Airo 



19 



20,06 



22,03 



26,966 



23,376 



11 



20 



22,201 



20,668 



31,973 



23,468 



11 



21 



28,82 



17,88 



— 



— 



11 



22 



38.932 



16,302 



40,70 



20,828 



)) 



23 



48^697 



16,493 



47,49 



19,7.53 



Z,Airo + Z,.2II'0 



24 



50,68 



15,72 



— 



— 



Z,.2H'0 



25 



55.091 



14,441 



— 



— 





26 



58,077 



13,893 



62,764 



17,375 



îl 



27 



64,235 



13.666 



65,563 



16,753 



J, 



28 



66,129 



13,70 



69,485 



16,062 



/,.2//'0 + Z, .7/'0 



29 



65,98 



14,146 



69,46 



15,153 



Z, ./i'O 



30 



67,365 



12,52 



70,722 



13,604 





31 



68,457 



10,945 



73,875 



13,383 



Z^/H'O + Z, A 11^0 



32 



66,88 



9,846 



71,274 



10,666 



Z.AWO 



33 



66,669 



9,838 



75,765 



9,296 



p 



34 



70,061 



11,851 



83,946 



9,574 



*y 



36 



69,04 



11,039 



81,798 



6,426 



* CrO' 



36 



68,033 



9,942 



82,11 



5,64 



* 



37 



67,844 



9,814 



82,8.52 



5,419 



* 



38 



65,720 



6,311 



85,978 



2,566 





39 



64,48 



4,508 



79,49 



2,71 



„ 



40 



62,28 







— 



— 



)i 



Au point h commence la courbe de saturation Jdk du bichromate 

 Na'^Cr'^O'' Zli'O; comme la droite E~Z^.ZlPO coupe cette courbe 

 en t, ce point représente la solution aqueuse saturée de ce sel. Ce 



^^ 



