Why sulpuric acid only used to ROI but not used nitric acid
and some other acids?




Answers were Sorted based on User's Feedback



Answer / 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 ?    65 Yes 2 No

Answer / kalkode sridhar

H2so4 . Will
convert the all
inorganic
nonvolatiles in to
their sulphates .
Sulphates are more
stable at the
specified
temporature in ROI
test the other
acids .

Is This Answer Correct ?    8 Yes 0 No

Answer / amarendra allu

sulpuric acid is strong acid and after addition of H2SO4 ORGANIC COMPOUND WILL DECOMPOSED AND VAPORISED BY IGNITING. ROI IS CONTENT OF INORGANIC ,after addition of H2SO4 to compound it converting 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.

Is This Answer Correct ?    8 Yes 1 No




Answer / rakesh choudhary

To check inorganic impurities in form sulphated ash to add
h2so4 stable at high temp than other inorganic acid.

rakesh choudhary
Ipca ratlam

Is This Answer Correct ?    1 Yes 4 No

Answer / ikhlakh

Because we report ROI in the form of sulphate salt so we
add sulphuric acid insteed of nitric acid.

Is This Answer Correct ?    6 Yes 10 No

Answer / sudhakar

its astrong acid that can decompose the sample very fastly

Is This Answer Correct ?    3 Yes 17 No

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