nitro-sulphuricnitro-sulfuricadj.
/ˌnʌɪtrəʊsʌlˈfjʊərɪk/, /ˌnʌɪtrəʊsʌlˈfjɔːrɪk/, U.S. /ˌnaɪtroʊˌsəlˈfjʊrɪk/ Chemistry. Now rare.
nitro-sulphuric acid n. (a) a mixture of nitric and sulphuric acids; (b) nitrosylsulphuric acid.
ΘΚΠ
the world > matter > chemistry > chemical substances > acids > [adjective] > acid mixtures
nitro-sulphuric acid1821
tellurhydric1857
1821 J. F. W. Herschel in Philos. Trans. (Royal Soc.) 111 298 36·00 grains of meteoric iron..were dissolved in dilute nitro-sulphuric acid, leaving behind a minute quantity of a brilliant black powder, which however dissolved by digestion in nitro-muriatic acid.
1836 Rec. Gen. Sci. 3 304 Nitro-sulphuric acid. M. Pelouze formed this acid by causing the deutoxide of azote to act upon a solution of sulphite of potash and potash dissolved in water.
1840 Penny Cycl. XVI. 243/2 Nitro-sulphuric acid. This name has been applied to a mixture of nitric and sulphuric acid first proposed by Mr. Keir as a solvent for silver.
1873 Chem. News 27 135 There are two methods..on the Tyne for the denitration of the nitro-sulphuric acid: the Glover towers and denitration by steam.
1907 G. S. Newth Text-bk. Inorg. Chem. (ed. 12) iii. ii. 426 Nitro-sulphonic acid (sometimes called nitro-sulphuric acid, and nitrosyl sulphate) may be regarded as sulphuric acid in which one of the hydrogen atoms is replaced by the group (NO).
1949 Bull. Torrey Bot. Club 74 310 All pipettes are cleaned with a nitro-sulfuric acid cleaning mixture, rinsed with water, and sterilized.
This entry has been updated (OED Third Edition, December 2003; most recently modified version published online March 2022).
<
adj.1821