fuming sulphuric acid

British  

noun

1. Also called: oleum.   Nordhausen acid.  a mixture of pyrosulphuric acid, H 2 S 2 O 7 , and other condensed acids, made by dissolving sulphur trioxide in concentrated sulphuric acid

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Example Sentences

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fuming sulphuric acid

Phosphoruspentoxide or potassium sulphate considerably increase the sulphonating property exhibited by fuming sulphuric acid.

From Synthetic Tannins by Grasser, Georg

Similarly, halogenated compounds and alcohols react with concentrated or fuming sulphuric acid forming sulphonic and hydrosulphonic acids respectively.

From Synthetic Tannins by Grasser, Georg

Of the three isomeric xylenes o- and m-xylene dissolve in concentrated, p-xylene in fuming sulphuric acid only.

From Synthetic Tannins by Grasser, Georg

Synthesis of alizarin by Graebe and Liebermann, leading to the utilization of anthracene, caustic soda, potassium chlorate and bichromate, and calling into existence the manufacture of fuming sulphuric acid.

From Coal and What We Get from It by Meldola, Raphael

If the dry gas is passed slowly into fuming sulphuric acid, a sulpho-derivative results, of which the potash salt may be thrown down by means of alcohol.

From Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power by Leeds, F. H. (Frank Henley)