How to calculate the solubility of sodium carbonate using ASPEN?

2014-10-18View Original

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ASPEN calculates the solubility of sodium carbonate by using a certain amount of water, adding an excess amount of solid, and then calculating the mass of the remaining solid to arrive at the solution. It employs a method similar to online NaCl simulations; however, the results are incorrect. I don’t understand why this is happening. Could someone please explain?

Reply #22014-10-18

First, try to see if you can reproduce NaCl

Reply #32014-10-19

This post was last edited by mkp369 on 2015-11-5 at 07:10. The simulation with NaCl works fine; however, it doesn’t work with Na2CO3

Reply #42015-11-04

The solubility constant needs to be modified; you didn’t change it, right? Undoubtedly, what crystallizes out is decahydrate soda ash

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How to calculate the solubility of sodium carbonate using ASPEN?

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