As well as being a strong acid, sulfuric acid is also a dehydrating agent, meaning it is very good at removing water from other substances. There are two examples you need to be aware of.

FOR the analysis of the nitrate content of sea water, and for certain tests on alkaloids, it is necessary to have sulphuric acid free from all but the most minute amounts of nitric acid.

Pour a layer of concentrated sulfuric acid ½” to ¾” thick on top of the sugar ... This will allow the vent to draw the smoke and vapors produced out of the beaker, enabling the students to watch the ...

The International Council on Mining and Metals (ICMM) and the International Network for Acid Prevention (INAP) have launched a new resource to help […] ...