4 replies to this topic

[Pingue2008]

Dear all,

I was assigned to find the S.G (density) of a 36%wt HCl solutions at temperatures ranging from 20C to 100C. I looked online
and on this forum but could not find the required data. Handymath and Solvay have the exact same data. i looked in perry's 8th edition i could find only one point that meets the requirement (36%wt & 20C). see attached. I was wondering if any of you have such data or know where to find them. wherever i looked they reference Perry's.

Thank you,
Alan

Attached Files

•  36%WT HCL SOLUTION.xlsx   11.48KB   18 downloads

[Steve Hall]

Lacking other information I would assume the density follows the same curve as water, offset by the offset at 20C. This assumes you can maintain the 36wt% composition at the elevated temperatures.

[Pingue2008]

yes the concentration remains constant at 36%wt HCl while the temperature is varying from 20C to 100C we want to determine the S.G. I need a table will real data. I did a regression and came up with an equation that could allow me to determine S.G at different temperature but my boss want true data from different sources the problem is that i can't find any other source but the ones i mentioned in the previous thread.

Thank you,
Alan

[S.R.Shah]

It is difficult to maintain concentration as vapor pressure of HCL gas above solution increases with the temperature which reduces concentration of liquid.

[Steve Hall]

Alan,

You may have to do an experiment, and measure the density yourself at three temperatures. Then you'll know if your correlation is sufficiently accurate.