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Determination of phosphorus by Quimociac Reagent ?

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kiloa:
hello everybody,
I face a problem with this determination as the following, effervescence of sample aliquote after adding Quimociac Reagent!!. i want to know the reason, kindly guide me. 

chenbeier:
To less information

kiloa:

--- Quote from: chenbeier on February 21, 2020, 02:42:35 PM ---To less information

--- End quote ---
after digesting solid sample with HNo3 and HCL , take 10 ml of digested solution then add 50 ml quimociac reagent to precipitate phosphorous , at this point when i add quimociac reagent the sample solution is effervescence.

chenbeier:
Probably the quimociac is broken. Did you check with a new soßution.

kiloa:

--- Quote from: chenbeier on February 21, 2020, 03:11:40 PM ---Probably the quimociac is broken. Did you check with a new soßution.

--- End quote ---
i don't know but the precipitation is formed. you mean check with new prepared reagent or new sample solution?

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