ABSTRACTS
BULLETIN DE L.4 SOCII%
CHIMIQCE DE PARIS.
275
From the product of this reaction the meta compound is indirectly obtained. It boils a t 206-20'1'. VI.
1
Dimethylmetatoluidine, CH, N, is obtained by treating metaC CH, "7 toluidine with iodide of methyl, in the presence of an alkali, and the etheral golution yields the pure base. It boils at 206-208'. VII.
i
Monometliylparatoluidine, CH, N, is prepared by Thomsen's H method, or the method described by the authors for the preparation of monomethylaniline, may be followed. 1-111.
N, may be prepared by several
Dimethylparatoluidine,
methods. The products of Oxidation of these aniline and toluidine compounds, and the coloring matters thus obtained, are discussed and arranged in tabular form, On the Serpentine of Venayee (VaUee d'doste), A c p o l v s o result of the analysis is as follows :
assA.-The
Silica . Phosphoric anhydride Magnesia . * Oxide of Iron '' Chromium . " Nickel . Lime . Oxide of Manganese Water . ,
.
.
.
. .
.
,
.
. . * . * . . .
.
40.86
trace. 41.37 4.59 0.05 0.09 0.03
trace. 13.08
Idem, No. 4. Uric Derivatives of the A U o x a n Skrhi, EDOUARD GRIMAUX.-BY the action of oxichloride of phoaphorus upon a mixture of malonic acid and urea, malonylurea, or barbituric acid, is formed. This may bo represented thus : Stjntileais of
3C,H,O,
+ 3CON,H, + 2POC1, = 3C:,H,N*O, + 2PO,H, + CHCL
216
ABSTRACTS
:
BULLETIN DE LA SOCIkTk C H M I Q U E DE PAKIS,
A variety of characteristic derivatives have been made. Thionurate of ariirnonia [C,H,N,SO,(NH,),] is prepared by acting upon the nitrous derivative with sulphate of anirnonia ; and amidomalonylurea (C,Ii,NH,S,O,~. by reducinc the former b y rileails of chloride of tin. Alloxantine 1s made b y treating dibroniomalonglurea ( C 4 H 2 1 3 r ~ ~ 9 0 ~ ) with hydric sulphide. l'his can t)r changed into alloxan JC,H,N,O,) by adding twice its weight of water and heating t o b O l ~ t i 0 1 i with a few d r o p of nitric acid. Murexide is ohtained by treating axnidomalonylurea with red oxide of mercury. If tartroiiic acid (C',EI,O,) be treated with urea and oxicliloride of phoHphorus, oxiinalonyiurea ia probably obtained, as the product given a characteristic d o r by mxessive treatment with nitric acid and animonia. O n A i n d g u m e of C h r o m i u m , I r o n Cobalt, Nickel and Mangawese, m ~ don u N e w Process f o r the P r e p n r u t i o n of Metullic Chromium, € I . Morss~~.---Chroniium amalgam is made by acting upon sodium amalgam b y soliitioii of protochloride of
chromium. 'rhis amalgam, heated in a cwrent of hydrogen, gives metallic chromium. An amalgam of manganese is made hy decomposing a solution of protochloride of manganese, in the presence of a negative electrode of mercury, by mean&of a battery. Amalgams of iron, cobalt and nickel, can also b e prepared, and from them the pure metals can be reduced. Aiirrlysia of some Metallic F r a g m e n t s t a k e n f r o m Peruvinn Sepulchres at Apcon, n e a r Lima, A. TsRRErL.-These arialjses were undertaken with the idea that some light might be thrown u1)on the condition of metallurgy in this country in the sixteenth century. It will he noticed that the first sample contained chlorine. There was much sea sand in the locality where this metal waa found, The analyses are a8 follows No. 4. No. 5 . SI,. 1. Pin. 2 . No. 5. .17.27 trace. 33.35 Silver . . 77.04 5-42 Gold . . trace. 94.35 79.03 65.90 60.83 . . i.U6 Copper 32.04 Zinc . 1.05 Iron . trace. 2.31 trace. 0.22 Chlorine. . . 15.71 Oxygen, sulphur, ar5.53 1.01 1.39 0.18 senic, carbonic acid, 0.19 ete., undet. . 0.12 Quartz sand .
i
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100.00
100.00
100.00
100.00
