268 



C. NEUBERG, A. GRAUER 

 LANTHANUM* 



VOL. 12 (1953) 



Na or K salts 



Precipitate 



Remarks 



Palmitic acid 

 Stearic acid 

 Oleic acid 

 Malonic acid 

 Succinic acid 

 Malic acid 

 Fumaric acid 

 Itaconic acid 

 Oxaloacetic acid 

 a-Ketoglutaric acid 

 Citric acid 



Isocitx'ic acid 

 Aconitic acid 

 Tartaric acid 

 Saccharic acid 

 Mucic acid 

 Menthol glucuronide 

 Pectic acid 

 Benzoic acid 

 Mandelic acid 

 Cinnamic acid 

 Gallic acid 

 Tannic acid 

 Cholic acid 

 Desoxycholic acid 

 Glycocholic acid 

 Taurocholic acid 

 Abietic acid 

 Copaivic acid 

 Chaulmoogric acid 

 Fructose- 1 ,6-diphosphate 

 Glycerophosphoric acid 

 Phosphoglyceric acid 

 Phytic acid 

 Guanylic acid 



Adenosine-3-phosphoric acid 

 Adenosine-5-phosphoric acid 

 Adenosinediphosphoric acid 

 Adenosinetriphosphoric acid 



+ 

 + 

 + 

 + 

 + 

 + 

 + 

 + 

 + 

 + 

 + 



+ 

 + 

 + 

 + 

 + 

 + 

 + 

 + 

 + 

 + 

 + 

 + 

 + 

 + 

 + 

 + 

 + 

 + 

 + 

 + 

 + 

 + 

 + 

 + 



+ 

 + 

 + 

 + 



s. in excess of malonate 



ins. in hot water or excess of succinate 



very s. in Mg-fumarate, s. in excess of both reagents 



s. in excess of fumarate 



ppt. at first jelly like, becomes flaky, s. in Na- 



fumarate 



s. in excess of isocitrate 



somewhat s. in excess of aconitate 



s. in excess of tartrate 



ppt. even in acid solution, small indistinct needles 



ppt (stiff jelly) 



almost ins. in excess of benzoate 



s. in excess of gallate 



ins. in excess of tannate 



almost ins. in excess of chelate 



ppt. jellylike, ins. in excess of desoxycholate 



almost ins. in excess of glycocholate 



Mg salt used, ppt. s. in NH^ tartrate 

 Na and Mg salts u.sed, ppt. ins. in NH^Cl 



s. in M NaPO, 



K^PgO^ monoethanolaminc mcta- 



phosphate, ins. in excess of guanylate, slightly s. 



in 50% acetic ac. 



The free acid ppt. with La-acetate 



idem 



s. in excess of LaClg 



s. in excess of ATP 



* used as M/io solutions of LaClg or La(N03)3, occasionally La-acetate. 

 '* used in Mj 10 or M/ioo solutions 



Almost all the precipitates are s. in solutions of triammonium-or trisodiumcitrate. 



