Direct deep black

Union black. Columbia, diamine, dianil, benzo, chlorazol, naphthamine, etc., blacks and fast blacks, carbide black, direct deep black, direct blue black, chromanil black, cotton black, etc. The cotton is stained Salt Dyestuff. On boiling with Hydrosulphite A X, the colour is permanently discharged. 

SYNS AHCO DIRECT BLACK GX AIREDALE BLACK ED AIZEN DIRECT DEEP BLACK EH AIZEN DIRECT DEEP BLACK GH AIZEN DIRECT DEEP BLACK RH AMANIL BLACK GL AMANIL BLACK WD ATLANTIC BLACKED ATLANTIC BLACK C ATLANTIC BLACK E ATLANTIC BLACK EA ATLANTIC BLACK GAC ATLANTIC BLACK GG... 

Dr. Bostock s summary is as follows In order to procure an ink which may he little disposed either to mould or to deposit its contents, and which, at the same time, may possess a.deep.black hue not liable to fade, the gells should be macerated for some hours in hot water, and the fluid, filtered tire filtrate should, be then exposed for about fourteen, days to a warm atmosphere, when any fungoid growth that may be observed must, be removed. A solution of sulphate of iron is to be. employed which has been boiled, or. exposed for some time, to the air, and in which there is consequently an admixture of sesquioxide of iron.. If the infusion of galls be made considerably stronger than is generally directed, the ink formed in this manner will not necessarily require the addition of a mucilaginous substance to render it of a proper consistence. 

ATLANTIC BLACK GXCW ATLANTIC BLACK GXOO ATLANTIC BLACK SD ATUL DIRECT BLACK E AZINE DEEP BLACK EW AZOCARD BLACK EW AZOMNE BLACK EWO BELAMINE BLACK GX O BENCIDAL BLACK E BENZAMIL BLACK E BENZO DEEP BLACK E BENZO LEATHER BLACK E BENZOFORM BLACK BCN-CF BLACK 2EMBL BLACK 4Ei IBL BRASILAiMINA BLACK GN BRILLIANT CHROME LEATHER BLACK H CALCOMINE BLACK CALCOMINE BLACK EXL... 

Direct black 38 [4-amino-3-((4 -((2,4-diamiuo-phenyl)azo)( 1,1 -biphenyl)-4-yl)azo)-5-hydroxy-6-(phenylazo)-2,7-naphthaleue-disulfonic acid disodium salt, amauil black GL, benzo deep black E, chlorazol black E, Cl 30235] [1937-37-7]... 

Diamine dark green. See Direct green 1 Diamine deep black EC. See Direct black 38 (4,4 -Diamine)-3,3 -dimethyl (1,r-biphenyl). See o-Tolidine... 

The heavier alkaline earth metals Ca, Sr, Ba (and Ra) react even more readily with non-metals, and again the direct formation of nitrides M3N2 is notable. Other products are similar though the hydrides are more stable (p. 65) and the carbides less stable than for Be and Mg. There is also a tendency, previously noted for the alkali metals (p. 84), to form peroxides MO2 of increasing stability in addition to the normal oxides MO. Calcium, Sr and Ba dissolve in liquid NH3 to give deep blue-black solutions from which lustrous, coppery, ammoniates M(NH3)g can be recovered on evaporation these ammoniates gradually decompose to the corresponding amides, especially in the presence of catalysts ... 

The vap. press, curve of solid iodine is indicated by PO, Fig. 16 that of liquid iodine by 00 and the effect of press, on the m.p. of iodine by ON. At the triple point 0 these curves meet. Fig. 18 shows a similar curve for water. The curve PO thus represents the sublimation curve or hoar-frost line OC. the boiling or vaporization curve, i.e. the effect of press, on the b.p. of the liquid. The same phenomenon occurs with water, iodine, etc., and the principle involved is the same as indicated in the law represented by Clapeyron-Clausius equations with respect to the lowering of the m.p. by an increase of press. Consequently, if the vap. press, of iodine be less than that of th,e triple point, the solid does not melt, but rather sublimes directly without melting at the triple point at 114-15° (89 8 mm.) and A. von Richter at 116 1° (90 mm.). According to R. W. Wood, if the condensation of iodine vapour occurs above —60°, a black granular deposit is formed, but below that temp, a deep red film is produced. 

The other method. of conducting the evaporation of vat liqiiors is by means of iron pans, with the fire and, heated air applied beneath. These—named fishing pans —are of considerable size, and shaped somewhat similar to a boat. They may bo heatad by a fire used solely for the purpose in which case to prevent injury to the pan, the arch of the furnace should be continued for some distance beneath, or the pan may be placed at the end of the black-ash furnace farthest from the fire, just as with the salting pan, except that the heated air is mads to pass under instead of over the pan. The evaporation is rapidly conducted by this method and when the lie becomes concentrated to a certain strength, small crystals of mo nob yd rated carbonate of soda— Na 0, COa, HO—constantly fall to the bottom, and as quickly as thoy fall are raked together to tho end of the pan farthest from the source of heat, and then Scooped or fished out by moans of perforated iron shovels. After being allowed some time to draiD, the salta so obtained are washed with fresh vat liquor, and then removed a reverberatory furnace, and all worked about until sufficiently dry. The deep-red mother liquor is either applied to the production of caustic soda or evaporated, and the residue heated with sawdust as before directed. 

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