why are not used methonol in kf titrator to find out water
content in ketones?
Answer Posted / jagadeeshchandra
Generally methanol is not used as a solvent for carbonyl
compounds.Usage of methanol for ketones will produce ketals
and water which gives false result.And aldehydes gives acetals
and water.
pyridine can be used in place of methanol.Halogenated
alcohols,long chain alcohols,Dimethyl formamide can also be
used.
Another thing methanol is reaction part.It forms methyl
sulphite with kf reagent.Whare base will acts as a buffering
agent.
More information i can give.If intrested call me
9989936333
| Is This Answer Correct ? | 5 Yes | 0 No |
Post New Answer View All Answers
If change in specification which parameter require to do for validation? if change in chromtographic condition then which parameter? if api change then which parameter? if change composition then which parameter? if old method not work out then whicj parameter? if additional one impurity added then which parameter of validation require to do on above each conditions? elaborate separately
could negative ions be produced by bombardment process in mass spectrometry?
Which is the highly polar and highly non polar column in HPLC?
what is the importance of peak purity in HPLC and how we can calculate through manul(not software)?
what is classification of elemental impurities? what is risk assement in elemental impurities?
why lactose has less charges when packed in steel containers when compared with packing of lactose in polyamide material?
What is diffrence between extractable volume and deliverable volume? Answer pls
in DMF having extra impurities and in api COA also having extra imp than USP or BP product then how require to proceed?
in which situation require to use paddle and basket?
In which situation we require to prepare the standard solution from sample in Related substance method?
why glutent are detected in the rice cereal baby food product even manufacturer claimed that they are using rice and milk only?we have using ELISA to do the test,and rice supposed not containing any glutent,rite?We already repeat the test so many times and it still detected.just wondering where the glutent came from?
How to compare XRD graphs against standard and carry polymorpism study of API's by powder XRD method?
process of Diclofenac sodium,IP.
what is the acceptance criteria for enteric coated tablets in 0.1n hcl validation in each parameter?
why are measure gas flow " ml " in Gas chromatography