Learn scientific techniques and practical tips and tricks, which will help you to improve the output of your experiment particular in Analytical chemistry, Organic chemistry, and physical chemistry

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Sulphate Ash- (Wet lab Calculator)

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It is very easy to work in In – Process calculation, Raw Material and Finished Product Calculation.
Sulphate Ash Calculator covered

Short formula

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Formula sulphate ash
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Interview Questions and answer
Pharmaceutical company Regarding Question and Answer Coverd
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What is Sulfated Ash ?

Sulfated ash is one of the test to perform in the pharmaceutical industry.
The test is performed to measure, when the substance is ignited at a certain temperature is Volatized or not

What is the difference between residue on ignition and sulfated ash?

– Both are the same USP Terminology is Residue on ignition

– E.P Terminology is Sulphated ash.

Type of Ash?

– Total Ash (Method A give Detail )

– Acid-insoluble ash (Method C A give Detail)

– Water-soluble ash (Method D A give Detail)

Method A

Accurately weigh about 1-2 gm of substance in the dry suitable crucible (Usually platinum crucible is used).
Using gentle heat,
remove any excess sulfuric acid, ignite at about 800 °C until all the black particles are gone, and moisten again with sulfuric acid (1760 g/l) TS.
Then add a little ammonium carbonate R and ignite the mixture to constant weight

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What is Sulfated Ash

Sulphated ash is one of the tests performed in the pharmaceutical industry.
The test is performed to measure when the substance is ignited at a certain temperature is it volatized or not.

The sulfated ash is used to determine the inorganic impurities present in the substance.

As per USP, General chapter <281> represents Residue on Ignition.
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