Interested to Buy Any Domain ? << Click Here >> for more details...
what is karl fischer principle and reaction ,describe it
- 5 Answers
- 36709 Views
- Jubilant Organosys, Microsoft, I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
Answer / suresh babu
The fundamental principle behind it is based on the Bunsen
reaction between iodine and sulfur dioxide in an aqueous
medium.
Water and iodine are consumed in a 1:1 ratio in the above
reaction. Once all of the water present is consumed, the
presence of excess iodine is detected voltametrically by
the titrator’s indicator electrode. That signals the end-
point of the titration.
The amount of water present in the sample is calculated
based on the concentration of iodine in the Karl Fisher
titrating reagent (i.e., titer) and the amount of Karl
Fisher reagent consumed in the titration.
B·I2 + B·SO2 + B + H2O → 2BH+I− + BSO3
BSO3 + ROH → BH+ROSO3−
| Is This Answer Correct ? | 28 Yes | 3 No |
Answer / laxman rapolu
A Quantitative chemical reaction between water and
Anhydrous SO2 and Iodine in the presence of Base(buffer)
that reacts H+ ions
SO2+RN+CH3OH------>(RNH)SO3CH3
(RNH)SO3CH3+H20+I2---->(RNH)SO4CH3+2(RNH)I
| Is This Answer Correct ? | 16 Yes | 2 No |
Answer / ajit
basically It is Biampriometric titration.
reaction
SO2+RN+CH3OH------>(RNH)SO3CH3
(RNH)SO3CH3+H20+I2---->(RNH)SO4CH3+2(RNH)I
| Is This Answer Correct ? | 14 Yes | 2 No |
Answer / ramachal yadav
karl-fisher regent contain iodine,sulpher di oxide and methanol ,it is based on fajan,s rule
reaction is given below
SO2 +I2 + 2H2O = H2SO4 +2HI
| Is This Answer Correct ? | 7 Yes | 0 No |
Answer / deepika hemant bankhede
A Quantitative chemical reaction between water and
Anhydrous SO2 and Iodine in the presence of Base(buffer)
that reacts H+.And the amount of water present in the sample is calculated
based on the concentration of iodine in the Karl Fisher
titrating reagent (i.e., titer) and the amount of Karl
Fisher reagent consumed in the titration. and the amount of Karl
Fisher reagent consumed in the titration. Macanism of action- H2O+I2+SO2+CH3OH+3RN=[RNH]SO4CH3+2[RNH]I
| Is This Answer Correct ? | 2 Yes | 1 No |
what is the principal of malvern particle sizer & its used in pharma industry
In specificity what parametrs are consider why that parametrs
What is heavy water
How will u perform degradation study in detectors other thann PDA in HPLC Methodology
why plane of polarized light rotated by opticaly active compunds?
is ther any guidline is available for limt of peak fronting.and what is the limt of peak fronting.
What is the definition of RRF
how can we decide the limit of cleaning validation? What is the criteria for it?
what is the difference between qualitative analysis and quantitative analysis and explain them?
What is split ratio in Gc? Splitless? how requirr to select?
What is similarity factor?
Give me details about dissolution , with name ?
Organic Chemistry 
