Interested to Buy Any Domain ? << Click Here >> for more details...
why KF factor is between 4.5 to 7.5 mg/ml ? why ? why
sometime pyridine is used in analysis like in raw material
solvent like acetone etc?
- 11 Answers
- 71554 Views
- Aurobindo, GVK, Sohan Healthcare, I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
Answer / suresh kumar
If we use methanol as a medium acetone will react with
methanol and side reaction takes place to give water
molecule as a biproduct hense the end point cannot be
attained, thats why we use pyridene or 2- propanol as a
medium in the case of determination of water content of
acetone by kf reagent.
| Is This Answer Correct ? | 106 Yes | 11 No |
Answer / tushar
1 ml of kf reagent = 5.0 mg water approx therefore kf
factor limit is 4.5 to 7.5 mg/ml
| Is This Answer Correct ? | 76 Yes | 37 No |
Answer / pratibha
Because acetone react with methanol and forms water as a side reaction so no end point we get. so for Acetone pyridine or other base we use.
| Is This Answer Correct ? | 13 Yes | 0 No |
Answer / nagulmeera
Acetone is highly reactive, so it reacts with methanol to give side products as water and ketals, our aim is to find water content but here excess water is generated so the titre value is not tru
| Is This Answer Correct ? | 6 Yes | 1 No |
Answer / anil suryawanshi
in the KF titration the Iodine react with water so the theoretical factor is 7.. Iodine mw=126.9/18 of water =7 so we get factor practically around 5
anil s
| Is This Answer Correct ? | 3 Yes | 1 No |
Answer / kevan bhalodiya
kf factor limite cant stable cause we use different type of reagent and thats strength are not same.
factor show only strendth of reagent.
so,factor limite cant consider.
| Is This Answer Correct ? | 5 Yes | 4 No |
Answer / ramraja
to avoid such water by product if analysis containing acetone and ketone which is under investigation fot that we can use hydranal reagent for kf titration.
| Is This Answer Correct ? | 0 Yes | 2 No |
Answer / urmila pawar
bcoz acetone has carbonyl functional grp which reacts with
metanol and forms different compound
| Is This Answer Correct ? | 9 Yes | 13 No |
Answer / pkv
just go through the reaction
mechnm u'll find ur ans.
| Is This Answer Correct ? | 7 Yes | 14 No |
Answer / jerrin babu.
KF titration has an optimum pH range of 5-7.
| Is This Answer Correct ? | 17 Yes | 35 No |
What is the correct way to digest milk powder to get the corrrect value of Fe and Zinc?
How can we calculate "confidence interval" in analytical method validation? Pl. explain with example.
IN pH CALIBRATION,CALIBRATION IS DONE FOR pH METER OR ELECTRODE?HOW WILL YOU JUDGE THAT THE METER TO BE CALIBRATED WITH 4,7,9.2 BUFFERS?EXPLAIN TEMPERATURE EFFECTS ON pH.
in loss on drying Why follows on constant weight not more than 0.5 mg, any region
What is split ratio in Gc? Splitless? how requirr to select?
In specificity what parametrs are consider why that parametrs
does water content by KF will calculate only external moisture absorbed or the ligand ? (for ex copper sulphate pentahydrate)
U have 4 strengths have different coating meterial which one u chose to do forced degradation stady in validation
What is use of LOD and LOQ in validtion and give range and in calculation why we use 3.3* LOD here why we use 3.3
2 Answers Dr Reddys, IPCA, Reddy Labs,
Why the same type of columns showing different RT for a single product?
what is the purge flow & how to calculate
Why we use methy Ethyl Propylparabine For HPLC Calibration
Organic Chemistry 
