what is the difference between melting range & melting
point? Which is more significant?

Answer Posted / sujan

melting range means range of temperature at which
temperature sample startsmelting(solidform to liquid form)
and at which temperature completely converted to liquid
form.example 121.4-123.6
Compound compleatly converted into liquid state mention as
a meltnig point.

Is This Answer Correct ?    11 Yes 6 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

For limit test of heavy metals in BP, Method C require that the substance is ignited at a temperature not exceeding 800 °C. Why confines such the temperature?

3600


in which situation ion pair agent require to use?

359


What is shaking level in GC?

421


what is lod and loq ?,why use k2cr2o7 , kcl h2so4 in uv calibration ?,why use benzophenone & caffene acetone in hplc calibration ?,what is leading peak in hplc ?why we do the calibration of limit of stry light in hplc & uv ?

3320


HI,I CLEARED BOB CLERK EXAM. MY INTERVIEW WILL BE ON 9TH OCTOBER,2010.PLEASE SEND ME INTERVIEW QUESTIONS AND ANSWERS. THANK YOU.

1827






What is similarity factor?

830


why should we perform dissolution PVT calibration only by UV spectrometer, not by HPLC ?

1271


what is mean by nitrosamine impurities?

637


How doing qbd practically?

528


what is partion and column chromatography

1894


For standardization of volumetric solutions, acceptance limit for concentration is considered as 10% of nominal concentration and %RSD as NMT 0.2% (for appropriate no. of replicates). But , if %RSD has not met, what should be further action?

1389


Is it nessesary all multimedia dissolution require descriminatory?

421


In the isomers,enantiomers give the only physical properties present such that no chemical properties present.

1872


how you establish the LOQ?

396


We use Potassium Dichromate solution for the calibration of UV-Visible Spectrophotometer in UV region. My question is to calibrate visible region which solution could be used in photometric accuracy

1453