[technologist]

How can I predict the density of a Liquid - Liquid OR Solid Liquid Mixture knowing the densities of pure components.

Thanks

[mdlhvn]

L-L: Normally, I think the density of the mixture is between those of the components. However, it's recommended to consider the interaction between each component.

L-S: I've hardly heard about the mixture of a liquid and a solid. Maybe you mean solution. The density of a solution is often a little heavier than that of solvent, and depends on the concentration of the solution. The more concentrated, the more density.

[Borek]

How can I predict the density of a Liquid - Liquid OR Solid Liquid Mixture knowing the densities of pure components.

In general - you can't. That's why they are tabelarized.

[technologist]

Yes, I mean Solution.

If I know concentration of the components whether it is LL- or LS Solution, I want some formula which can predict the density within +/-5 Or 10%



Thanks

[mdlhvn]

I've never heard about the fomula like that!
 As Mr Borek (I guess he is a real chemist) said, the densities of solution are tabelarized.

[Borek]

Sohnel and P. Novotny, Densities of Aqueous Solutions of. Inorganic Substances, Physical Sciences Data 22, Elsevier,. Amsterdam, 1985

It goes as close as it is possible, but even then it is not simple. Densities are given as:

d(t) = d0(t) + Ac + Bct + Cct² + Dc^3/2 + Ec^3/2t + Fc^3/2 + t²

where d is density, d0 is water density, and A..F are tabelarized coefficients, for example for NaOH
A 4.196e1
B -9.064e-2
C 6.308e-4
D -4.907
E 1.633e-2
F -10.41e-4

I don't remember formula accuracy, I just happened to have it in my notes.

[technologist]

Thanks Borek,
I am looking for some correlation in terms of densities of both the liquids & their concentration.