Why sulpuric acid only used to ROI but not used nitric acid
and some other acids?
- 7 Answers
- 29188 Views
- Cadila, Laurus, Ranbaxy, I also Faced
- E-Mail Answers
Answer Posted / ankur dwivedi
As we generally check the inorganics by this test by
converting it into their sulphates with the treatment of
H2SO4 and sulphates are very stable at high temperature
(about up to 800-1000). while nitrates and chlorides are
not stable at high temperature. Hence it is recommended to
go for sulphated ash instead of nitrates and chlorides.
Ankur Dwivedi
ZCL Chemicals, Ankleshwar
| Is This Answer Correct ? | 80 Yes | 2 No |
Post New Answer View All Answers
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 ?
what is the origin to prepare standard operating procedure
in which situation require to change rs specification?
What is the requirement for brazil in the analytical method vslidation comparr to ich?
How do we get end points and how many end points are possible for citric acid and di-acid not theorotically answer should be given practically.
In the isomers,enantiomers give the only physical properties present such that no chemical properties present.
why digestion require in icpms?
What is diffrence between extractable volume and deliverable volume? Answer pls
Why we select scan range from higer wavelength to lower wavelength in uv visible spectroscopy and ftir spectroscopy ? .
Which are the diffrent grades of api in pharma?
What should be the level/ Percentage of Arsenic in Arsenic free zinc.
What is third generation HPLC Columns?
What is the principle of Thermal conductivity detector and FID?
in sampling of raw material which side is pasted sampled labels
How to choose the which salt is suitable for mobilephase
