GOLD-BROCADE. See BROCADE.
Fulminating-GOLD. See CHEMISTRY, n° 356.—Since that article was printed, however, we are informed by Mr Macquer, that fulminating gold may be made without any nitrous acid. Of consequence, the conjecture there given concerning the cause of its explosion cannot be true in as far as the nitrous ammoniacal salt is concerned; though possibly the fixed air contained in the calx of gold may considerably contribute towards it.—Mr Bergman, whom Mr Macquer quotes, found that he could prepare fulminating gold at any time, by applying volatile alkali to it when in a greatly divided state. He doth not indeed tell us whether the alkali used, was in a caustic or mild state, (i. e. whether it was deprived of its fixed air or not): but though the experiment should even be found to succeed with caustic alkali, still the explosion might depend on fixed air; because caustic volatile alkalies are found either to imbibe, or generate this kind of air, even though excluded from the atmosphere in the most careful manner; and hence the complaint among druggists, that alkaline spirits, made with quicklime, do not keep equally well with others. See ALKALINE SPIRITS.