Welcome,
Guest
. Please
login
or
register
.
Did you miss your
activation email
?
1 Hour
1 Day
1 Week
1 Month
Forever
Login with username, password and session length
Forum Home
Login
Register
PhreeqcUsers Discussion Forum
»
Mixing
»
Mixing Solutions
»
Mixing solutions and charge
« previous
next »
Print
Pages: [
1
]
Go Down
Author
Topic: Mixing solutions and charge (Read 270 times)
Charlie
Admin
Posts: 95
Mixing solutions and charge
«
on:
June 19, 2017, 11:35:40 AM »
Q:
I have a series (300 to be precise) of mixing reactions which use the solution from the prior step and mix it with some solutions from a solution spread. The issue I have is that the percentage error gradually grows and grows and eventually the solver stops. Can I ‘charge’ an element in the mixed solution(s) which is then carried forward into the subsequent mix reaction?
A: (from D. Parkhurst)
The charge balance error should be proportional to the solutions that are mixed. If the volume of solution grows, then the absolute equivalents error might grow, but the percent error should be bounded by the mixing proportions. Seems to me, the percent error should be no worse than the worst percent error in the mix.
If you are using SURFACE without a diffuse double layer in a reaction, then the solution error could grow because charge can be transferred to the surface and the solution has an equal and opposite charge added.
Logged
Print
Pages: [
1
]
Go Up
« previous
next »
PhreeqcUsers Discussion Forum
»
Mixing
»
Mixing Solutions
»
Mixing solutions and charge