Full text: Les données expérimentales (Tome 2)

+ O'*,) 
+lp,i 
1 ~ 0 
- o“i 
KF. HF = 78,1 
KF.2HF= 98,1 
KF.3HF= 118,1 
KF sol.-4- HF gaz 
= KF.HF crist 
4-21, i 
dissous 
KF » +2HF » 
— KF.2HF crist.. 
4-35,2 
dissous 
KF » -+-3HF » 
= KF. 3 HF crist.. 
+47,' 
dissous 
Dissolution : 
KF.HF 4- eau = 
dissolution 
— 6,0 
KF. 2HF 4- eau = 
)) 
— 8,0 
KF. 3HF 4-- eau = 
)> 
— 8,6 
Combinaison . 
KF dis. -+- HF diss. — KF.HF diss. 
KF dis. -+- 5HF dissous 
= KF.HF dissous 4- 4HF dissous.. 
5 KF dissous 4- HF dissous 
= KF.HF dissous4- 4KF dissous.. 
Gu., Bull. Soc. Ch. [3], XIIJ, 114. 
— o,33 
— o,54 
FLUOSILICATE DE POTASSIUM. 
SiF 4 .aKF=r 220,2. 
SiF 4 gaz. 
Si F 4 gaz. 
2 KF solide . 
2 KF dissous 
Cal 
52,8 
45,G 
Neutralisation : 
SiF 4 .2HF dis. -+- 2KOH dis. = SiF 4 .2KF préc. 4- 2H 2 0 4- 44,° 
Truchot, C. R., XCVIII, i33o; i884- 
Cil 
ôo,3 (B. et fa. 
16,1 
[6], DI, 18; 4 
3,6 
[6],UI,i8;i884 
r,o 
Sulfures. 
MONOSULFURE. 
K 2 S = I 10,2. 
K 2 -4- S = K 2 S solide +io3 Cal ,5 
Réactions mesurées : 
I. H 2 +0 = H 2 0 
II. H 2 -+- S eau = H 2 S dissous 
III et IV. Neutralisation et dissolution. 
dissous -F-113 Cal , 5 
Sab., A. [5], XXII, 25; 1881. 
Cal 
+ 69, 0 
9,5
	        
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