The dark red chromium ( VI ) oxide, the acid anhydride of chromic acid, is sold industrially as " chromic acid ".
32.
Peligot's salt is the potassium salt of chlorochromic acid ( chromic acid where chlorine has replaced one of the OH groups ).
33.
Chromic acid in glacial acetic acid solution oxidizes it to picene-quinone, picene-quinone carboxylic acid, and finally to phthalic acid.
34.
This method is preferred over the " traditional " chromic acid bath for cleaning NMR tubes, because no traces of paramagnetic chromium can remain to spoil spectra.
35.
Due to incompatibilities, it is recommended to keep acetic acid away from chromic acid, ethylene glycol, nitric acid, perchloric acid, permanganates, peroxides and hydroxyls.
36.
In 1867, when he came back from the world exhibition in Paris and brought the first chromic acid cell with him, he also met the astronomer Wilhelm Klinkerfues.
37.
Graphite bisulfate, [ C 24 ] + [ HSO 4 ] ", is prepared by this approach using sulfuric acid and a little nitric acid or chromic acid.
38.
Chromic acid H 2 CrO 4, has similarities with sulfuric acid H 2 SO 4; for example, both form acid salts A + [ HMO 4 ] ".
39.
Formerly, sodium sulfate was also a by-product of the manufacture of sodium dichromate, where sulfuric acid is added to sodium chromate solution forming sodium dichromate, or subsequently chromic acid.
40.
Historically, brucine was distinguished from strychnine by the addition of chromic acid in H 2 SO 4, since it does not give off the series of colors that is characteristic of strychnine.
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