IUPAC-NIST Solubilities Database

IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

Solubility System: Carbon dioxide with Potassium thiocyanate and Water

Components:
   (1) Potassium thiocyanate; KSCN; [333-20-0]  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.], Ann. Chim. Phys. [6] 1892, 25, 226-70.

Variables:
   Temperature = 288.35 K
   Concentration = c₂/mol dm^-3 = 0 - 10.065

Prepared By:
   Pirketta Scharlin

Experimental Remarks:

   Initial solution: 97.8 g KSCN + 45.33 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	3	3.355	a	0.691	b	0.0490	a,c
15.2	288.35	a	2	5.032	a	0.590	b	0.0463	a,c
15.2	288.35	a	1	10.065	a	0.387	b	0.0413	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.