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Topic: Three Acid Mixture Concentration Determination  (Read 3648 times)

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Offline quasarcosmic

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Three Acid Mixture Concentration Determination
« on: December 02, 2010, 12:54:40 AM »
I have been racking my brain trying to determine a method for determining the concentration of individual acids in a three acid mixture of hydrochloric, phosphoric, and hexafluorosilicic acid. I don't even know if I can do this by a standard titration...any ideas?
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Offline sjb

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Re: Three Acid Mixture Concentration Determination
« Reply #1 on: December 02, 2010, 06:29:04 AM »
Quote from: quasarcosmic on December 02, 2010, 12:54:40 AM
I have been racking my brain trying to determine a method for determining the concentration of individual acids in a three acid mixture of hydrochloric, phosphoric, and hexafluorosilicic acid. I don't even know if I can do this by a standard titration...any ideas?

Titrations don't always have to be acid-base (in the Lowry-Broensted sense) in nature...
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Offline cil-baha

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Re: Three Acid Mixture Concentration Determination
« Reply #2 on: December 02, 2010, 02:11:18 PM »
"hydrochloric, phosphoric, and hexafluorosilicic acid"
Determine Cl in HCL, Determine P in H3PO4, Determine Si & F in H2SiF6;
determine %'s stoichiometrically.
Done.
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