S. P. Sadiler on Fischer's Salt. 197 
With 1°8558 gr. salt, combustion-tube lost 4476 gr., of which 
€a€l, tube took up 1216=6°55 p. c. H, © leaving °3260 gr. 
=17°56 p.c. N.== 47°67 p.a..N, Oy. 
Yellow Salt. 1st Preparation. : 
"6342 gr. salt gave 5448 gr. Co, Na,550,,=39°22 p. c. CoO +Na,O 
the €o determination was lost. . 
5805 gr. salt gave 4994 gr. Oo, Na,550,, =39°28 p. c. CoO +Na,O 
also gave ‘2431 gr. CoSO,—18°55 p.c. CoO=—20°53 p.c. 
€0,0,. 
Yellow Salt. 2nd Preparation. 
“4197 gr, salt gave ‘3700 gr. Co, Na,550,=40'25 p. c. CoO +Na,O0 
so gave ‘1723 gr. CoSO,—19°86 p.c. CoO=21°98 p.c. 
0.04. 
“4873 gr. salt gave -4291 gr. €Co,Na,550,=40°20 p.c. CoO +Na,9 
also gave ‘2012 gr. €oSO,—19°98 p.c. CoO=22°11 p.c 
2°~ 3° 
Yellow Salt. 38rd Preparation. 
‘8554 gr. salt gave -7354 gr. €o,Na, 550, =39°25 B c. €o8+Na,0 
also gave ‘3543 gr. €oS0,=20°04 CoO=—22'18 p.c. 
Og 3° ; 
€0,6N6,+4(NaN6,)+H, 9. €0,6N0,+6(NaN®,)+H, 9. 
Theor. p. cts. Found p. cts. Theor. p. cts. Found p. 
€0,0,—24:13 23°71. 23°21 += 20°10 20°53 22°04 2218 
Na,O—18-02 18°37 18°70 22°52 20°70 20°31 19-21 
N,0,—55-23 47-07 (2)* 55°20 [20°54 
H,O~ 2-62 6°66 (?)* 2-18 
ually under the 
in bracket showing the 
are fortu- 
after 
the formation and filtering off of some of the brown salt, chlo- 
nid of luteocobalt was added to the wine-colored filtrate, which 
* The found per centages of N+H,0 in the brown salt is the average of two 
tions. 
determina: 
