Lithic acid

AI3-15432 7,9-Dihydro-1H-purine-2,6,8(3H)-trione EINECS 200-720-7 Lithic acid NSC 3975 1H-Purine-2,6,8-triol Purine-2,6,8(1 H,3H,9H)-trione 1H-Purine-2,6,8(3H)-trione, 7,9-dihydre- ... 

Litharge, leaded. See Lead oxide, black Litharge pure. See Lead oxide, yellow Lithia. See Lithium oxide Lithic acid. See Uric acid Lithicarb. See Lithium carbonate Lithium... 

Fourcroy examined gall stones and calculi. In 1800 Fourcroy and Vauquelin published an important memoir on the composition of urinary calculi, which somewhat extended the publications of Wollaston — which they do not mention — and of Pearson, who changed Scheele s name lithic acid into uric oxide or ouric oxide Fourcroy and Vauquelin called it adde urique. They analysed over 600 calculi and concluded that they are of twelve main species, consisting of the following substances, or mixtures of them uric acid, urate of ammonia, phosphate of lime, phosphate of magnesia and ammonia. 

The Sicily Province consists of tholeiitic to Na-alkaline magmas. Most rocks are mafic in composition, ranging from basalt to hawaiite and nephelinite, except at Pantelleria where peralkaline acid volcanics (pantellerites) dominate. A few trachytic rocks occur at Etna, Ustica and as lithic ejecta at Linosa. 

Fig.9-8. Section along traverse b (Fig.9-9) showing acid-released H2S content of soil over a Icad-zinc ore body beneath thick lithic cover in China K,con = Cretaceous conglomerate K,d = Cretaceous red sediments, J,gn = Jurassic Lingkou Group, P.m = Permian Maokou formation, Piq = Permian Qixia formation, PjL = Permian Leping formation.

Phil. Trans., 1818, cviii, 420-8 A description of an acid principle prepared from the lithic or uric acid. 

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