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Title: Densities and partial molal volumes of sodium tetrafluoroborate aqueous solutions at 20oC
Authors: Crooks, William J
Christian, Jerry D
Issue Date: Sep-2004
Publisher: NISCAIR-CSIR, India
IPC Code: Int Cl.7 G01 N 9/04
Abstract: Densities of solutions of NaBF4 in H2O have been determined at 20.00 °C over the concentration range 0.05 to 9.0 molal (0 to 50 wt%) NaBF4. The results are represented by d (g/mL, 20oC) = 9.726×10-5 m3- 3.2157×10-3 m2 + 6.7447×10-2 m + 0.99843, where d is density and m is molality. This equation has been used to derive concentrative properties for NaBF4 solutions. The raw density data have been used to derive partial molal volumes. The partial molal volume at infinite dilution is 37.6 ± 2.7 mL/mol at 20 oC. The partial molal volume at 20°C is represented by v2 =37.5 + 9.22 m1/2 - 2.92m from 0 to 2.5m NaBF4 and v2= 44.6 + 0.081m from 2.5 to 9m NaBF4.
Page(s): 1872-1875
ISSN: 0975-0975(Online); 0376-4710(Print)
Appears in Collections:IJC-A Vol.43A(09) [September 2004]

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