312 CHBMISTET. 



PHLORETINK. 



Hlasiwetz has resolved this body by the action of potash, into pkloretic acid 

 and phloroglucine. a compound much resembling orcine. (See Chemical Gazette 

 No. 321.) 



ACETATE OF MAGNESIA. 



Karl von Hauer ha3 prepared this salt in a crystallized form although generally 

 described as amorphous, and gives the formula Mg 0, Ac +4 II 0. The salt loseB 

 32.73 per cent of water after long heating. The formula requires 32.29. [In my 

 note-book I find an (unpublished) analysis of a commercial crystallized acetate 

 of magnesia, made in 1839 in Rammelsberg's laboratory. 



The salt consisted of Acetate of Magnesia 64.77 



Acetate of Potassa 2.65 



Water and loss 32.58 



100.00, 

 from which I deduced the same formula as Von Hauer. H. C. 



SAPHTHALAMINB. 



W. H. Perkin has examined the action of chioride of cyanogen upon naphtha- 

 lamine (naphthalidine,) and has obtained a base analogous to melauiline, and 

 various compounds resulting from the action of cyanogen upon it, similar to those 

 derived from aniline. 



NITJIIALDINE. 



Arppe has obtained a body having the formula C^H'N^O by the action of suU 

 phuretted hydrogen upon a solution of nitraniline saturated with ammonia ; 

 hyposulphite of ammonia is formed at the same time. Nithialdine does not seem 

 to possess either basic or acid properties. 



CAFFEINE. 



Puccetti prepares caffeine from the inspissated extract of tea, by adding to the 

 extract 2 oz. of finely powdered pearlash for every pound of tea, the mixture is 

 well stirred, and when effervescence is over, is either dried into cakes, powdered, 

 or is at once treated with alcohol for several days, the alcohol being often renewed ; 

 on evaporation a caffeine is obtained which can be readily purified by means of 

 animal charcoal. In this manner he obtained 2.55 per ccn^ from Congou tea. 



A.VII.IDES. 



Arppe has examined the anilides of malic acid ; the malanilide is converted by 

 potash into tartanilide. 



STIBAMYLK. 



F. Berle has examined the products of the action of potassium-antimony Sb^K, 

 upon iodide of amyle. He has prepared Stibtriamyle, Sb, (C 10 H") 3 , its oxide, 

 chloride, bromide, iodide, with two equivalents of oxygen, &c, and the compound6 

 of nitric and sulphuric acids with the oxide, these bodies containing two equivalents 

 of the acid. Several other compounds have also been obtained, resulting appar- 

 ently from Stibbiamyle. 



TAURINE. 



Dr. A. Cloettit has found Iuosite, uric acid, taurine, and leucine in the tissue of the 

 un gs ; Verdeil'a Pulmonic acid seems to have been nothing but taurine. 



