Answer / suresh palacharla

I think that the question was wrong,why i am saying is in
KF titration the reaction takes place between iodine and
water and methanol acts as Media only.

Answer / subash

In KF titration the reaction takes place between I2, SO2,
Methnol and H2O and base acts as a buffer inorder to keep
the pH of the solution between 5.5 and 8.0.

methnol+ SO2+base gives intermediate alkyl sulphite salt
which is then oxidized by I2to an alkyl sulphate salt. This
oxidation reaction consumes water.

What does theoretical plates number mean?

1 Answers   Zydus Cadila,

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Why we show ammonia vapours to tlc plate?to which compounds?

1 Answers  

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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

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what is differance between density and specificgravaty

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what is the relation of normality & molarity ? give me formula?

5 Answers  

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key components in hplc?

3 Answers   Laurus,

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How to develop the method when we have very low amount of impurity?

2 Answers  

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if peak get problamatic then what require to do?

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Why dissolution test performed on six jar?

1 Answers   Mylan,

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How we can identify process related and degradation impurity in single method with short period?

0 Answers  

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all types of questions asked at the cipla interview

0 Answers   Aurobindo, Calyx, Cipla, Graviti Pharmaceuticals,

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effect of pore size, pore volume, partical size, column length, carbon load on retention time? what is carbon load? what is the use?

0 Answers  

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