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MIX_SOLUTION*

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This keyword data block is used to define a new solution by mixing previously defined solutions. This keyword simply sums moles of elements to define a new solution that can be used in subsequent simulations; unlike MIX**
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, it does not cause any speciation or reaction calculation.

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Example data block*

*Line 0: MIX_SOLUTION 2 Mixing SOLUTION 5, 6, and 7.*

*Line 1a: 5 1.1*

*Line 1b: 6 0.5*

*Line 1c: 7 0.3*

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Explanation*

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Line 0: MIX_SOLUTION [number] [description]*

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MIX_SOLUTION is the keyword for the data block. *

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number--A positive number designates the new solution user number. Default is 1. *

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description--Optional comment that describes the mixture.*

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Line 1: solution number, mixing fraction*

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solution number--User number of a solution definition.*

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mixing fraction--Decimal number that is multiplied times the moles of each element in the specified solution definition; the mixture is the sum of each element times its mixing fraction. Mixing fractions may be greater than 1.0.*

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Notes*

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In mixing, the amount of each element is multiplied by its mixing fraction and a new solution is calculated by summing over all of the fractional solution definitions. In the Example data block, if the moles of Ca in equilibrium phases 5, 6, and 7 were 0.1, 0.2, and 0.3, the moles of Ca in the mixture would be 0.1x1.1+0.2x0.5+0.3x0.3 = 0.3. MIX_SOLUTION is followed only by COPY**
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, DUMP*
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, and DELETE*
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in the sequence of operations of a simulation.

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Related keywords*

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MIX**
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, MIX_EQUILIBRIUM_PHASES*
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, MIX_EXCHANGE*
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, MIX_GAS_PHASE*
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, MIX_KINETICS*
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, MIX_SOLID_SOLUTION*
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, and MIX_SURFACE*
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.

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