Why potassium hydrogen pthalate is used for perchloric acid
And naoh. Why it is used for both acid and base
Answer Posted / mahesh.duggirala
accually PHP nature is acidic(pH:4.5)..so we use for
standerdization of NaOH.but in HClO4,we standedize in
presence of Acetic acid..Acetic acid & PHP combined to form
conjugate base.that conjugate base react with HCLO4
solution..in HCLO4 standerdization
| Is This Answer Correct ? | 11 Yes | 8 No |
Post New Answer View All Answers
what are the guidelines for analytical method validations?
How to start the dissolution development for unknown tab?
how pda detector works over uv?
What is stray light in uv what are units for stray light
before starting analytical method valodation what you checking? and how giving preference to start validation?
1.What is the difference between method validation and method verification 2.Which guidelines proposed to method transfer
mahagenco syllabus for the post of chemist
How doing qbd practically?
Which parameter require to do for analytical method equivalency?
Many times I don't got a caffeine peak in calibration of hplc using guard column ❓
How would you decide dissolution medium for NCE compound of class I drug
EXPLAIN THE CALCULATION PART OF AN KF TITRATOR CALIBRATION WITH SUITABLE EXAMPLE
what is classification of elemental impurities? what is risk assement in elemental impurities?
My question about gas chromatography sulfur chemiluminsecence detector. I test unknown sample gas by GC-SCD (calibrated ) and the result of *H2S is 279 PPM , *but when I test the same sample with the GC-TCD (calibrated ) the value of *H2S is 2500 PPM . I'd like to inform you that both GCs are calibrated and have very good operation conditions with stable parameters . the question is if the sample gas with higher H2S over detection limits of SCD detector (1000 ppm). why the result it 279 ppm Best regards
In GC calibration,what is the procedure to calibrate the TCD (thermal counductivity detector)suggest ?