IUPAC-NIST Solubilities Database

IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

Solubility System: Carbon dioxide with Potassium nitrate and Water

Components:
   (1) Potassium nitrate; KNO3; [7757-79-1]  NIST Chemistry WebBook for detail
   (2) Carbon dioxide; CO2; [124-38-9]  NIST Chemistry WebBook for detail
   (3) Water; H2O; [7732-18-5]  NIST Chemistry WebBook for detail

Original Measurements:
   Setchenow, J. [Sechenov, I.M.], Nouv. Mem. Soc. Imp. Nat. Moscow 1889, 15, 203-74.

Variables:
   Temperature = 288.35 K
   Concentration = c₂/mol dm^-3 = 0 - 2.325

Prepared By:
   Pirketta Scharlin

Experimental Remarks:

   Initial solution: 23.51 g KNO₃ + 90.10 cm³ water to make 100 cm³ of sln.

Experimental Data:   (Subscripts 1,2,3, ..., in column headings refer to components 1,2,3, ...)


t/°C	T/K	Temp Note	Dilution	Concentration C₂ [mol/dm³]	Concentration Note	α	α Note	Salt Effect [dm³/mol]	Salt Note
15.2	288.35	a	∞	0	a	1.009	b	-	a,c
15.2	288.35	a	4	0.5813	a	0.959	b	0.0380	a,c
15.2	288.35	a	2	1.163	a	0.8905	b	0.0466	a,c
15.2	288.35	a	1	2.325	a	0.781	b	0.0478	a,c

Notes:
   ^a  Calculated by the compiler.
   ^b  α = Bunsen coefficient [cm³ (STP) cm^-3 atm^-1].
   ^c  K_scc = Setchenow salt effect parameter; K_scc = (1/c₂) lg(α^o/α).

Method/Apparatus/Procedure:
   See other data sheets on J. Setchenow papers.

Source and Purity of Materials:
   See other data sheets on J. Setchenow papers.

Estimated Errors:

   Temperature: See other data sheets on J. Setchenow papers.