Violet, Acid Chrome

Acid chrome red, acid anthracene red, acid alizarine red, anthracene chrome red, acid alizarine garnet, azo alizarine Carmoisine, chrome fast Bordeaux, cbrome fast garnet, chromotropes, diamond red, eriochrome red, eriochrome Bor- deaux, omega chrome red, oxychrome garnet, palatine chrome red, eriochrome olive, palatine chrome violet, anthracene chrome violet, acid chrome blue, azi chrome blue, chrome fast blue, chromotrope blue, omega chrome blue. 

The results of the complexation study of Cu(II), Pb(II), Zn(II), Fe(III), Hg(II), Cd(II), Sn(IV), Zr(IV), Ti(IV) with arsenazo III, sulfonazo III, SPADNS, Eriochrome T, Acid Chrome Dai k Blue, Xylenol Orange, Methyl Thymol Blue, Pyrocatechol Violet, Chrome Azurol S, Eriochrome Cyanin R, Basic Blue K, Methyl Violet, Brilliant Green, Rhodamine C and Astraphoxin in solid phase. The obtained data ai e used for the working out of a new method of metal determination. 

Chlorine dioxide is determined from its absorbance as the coloured product (Xmax = 490 nm) of its reaction with tyrosine [48]. Chlorine dioxide has been found to reduce the absorbance of Acid Chrome Violet K [49]. Spectrophotometric methods of determining CIO2 with the use of Chlorophenol Red have been proposed [50,51]. A scheme for analysing mixtures of Cf, CIO, CIO2, ClO.i, CIO4 , and CIO2 using spectrophotometric and other methods has been devised [52]. 

Key CL, chemiluminescence UV, ultraviolet IDS, indigo-5,5 -disulfonate ITS, indigo-5,5, 7-trisulfonate ACVK, Acid Chrome Violet K (Alizarin Violet 3R) n.a., For batch methods, sampling time (s) is shown in parentheses. 

As in the case of indigosulfonates. Alizarin Violet 3R (Acid Chrome Violet K) loses its color on reaction with ozone and chlorine dioxide. Ozone can be determined from the decrease in absorbance at 548 nm after mixing with a sample solution. This method is less sensitive than the indigo methods. Chlorine, hypochlorite, chlorite, and chlorate do not interfere. While chlorate(in) can also be determined by this method, it does not coexist with ozone in treated waters. 

Other Names C.I. Mordant Violet 5 C.I. Mordant Violet 5, monosodium salt Eriochrome Violet B Acid Alizarin Violet N Acid Alizarine Violet Acid Alizarine Violet B Acid Chrome Violet K Acid Chrome Violet N Aizen Chrome Violet BH Alizarine Violet N Alphacroic Violet B Atlantichrome Violet B Brasilan Chrome Violet B C.I. 15670 Chromacid Violet R Chromaven Violet B Chrome Fast Violet B Chrome Violet B Chrome Violet K Chrome Violet R Cromal Violet B Diacromo Violet N Diamond Corinth N Durochrome Violet B Erio Chrome Violet BA Erio Chrome Violet BR Hispacrom Violet B Java Chrome Violet B Magracrom Violet N Mitsui Chrome Violet BC Monochrome Violet B Mordant Violet 5 Omega Chrome Dark Violet D Pontachrome Violet S W Solochrome Violet Solochrome Violet R Solochrome Violet RS Solo-crom Violet RS Sunchromine Violet B Superchrome Violet B Symulon Chrome Violet B Tertro-chrome Violet N Yodochrome Violet B... 

Strictly the name Acid chrome violet BR applies to the monosodium salt. 

Hydroxy-3-[ 2-hydroxy-l-naphthalenyl)azd benzenesulfonic acid, 9CL Solochrome violet RS. C.L Mordant violet 5. Eriochrome violet B. Chrome fast violet B. Acid alizarin violet N. C.L 15670 [3219-56-5]... 

Fast navy 2R. C.I. Mordant blue 9. Acid chrome blue RRA. Calcochrome blue RRL. Chrome blue 2R. Eriochrome violet SB. Omega chrome blue 2R. C.I. 14855... 

Carboxy 5-methyl-4-oxo-2,5-cyclohexadien-1-ylidene)[2-chloro-4-(diethylamino)phenyl methyl -2-hydroxymethylbenzoic acid, 9CI. 2"-Chloro-4"-diethylamino-4 -hydroxy-3,3 -dimethylfuchsone 5,5 -dicarboxylic acid. C.I. Mordant violet 28. C.I. 43570. Brilliant monochrome violet. Omega chrome brilliant violet B [7452-52-0]... 

Acid chrome violet K Na salt, in A-00055 2-Amino-4-chlorobenzenethiol, A-00135... 

Acid alizarin black SE, A-00050 Acid alizarin black SN, A-00051 Acid chrome violet BR Na salt, in A-00054... 

Technically important dyes are salicylic acid derivatives that function as chrome mordant dyes for wool. Thus Cl Mordant Blue 1 (6.187) is made by the aldehyde synthesis from 2,6-dichlorobenzaldehyde and 2-hydroxy-3-methylbenzoic (o-cresotinic) acid in concentrated sulphuric acid. Oxidation of the leuco base is achieved by the addition of sodium nitrite. On wool the product, which is isolated as the sodium salt, is a dull maroon colour, changing to a bright blue on treatment with a chromium salt. Some dyes of this type, such as Cl Mordant Violet 1 (6.188), also contain a basic group. This compound is also prepared by the aldehyde route. 

What chemical reactions are taking place when a violet solution of chrome alum on treatment with hydrochloric acid turns green in color ... 

Chromic oxide jellies may be formed by adding sodium or potassium hydroxide or ammonia to a solution of chromic sulphate or chloride containing sodium acetate or by adding sodium or potassium hydroxide, hut not ammonia, to a solution of chrome alum. The jelly is violet if prepared by the addition of ammonia or of a slight excess of the alkali metal hydroxide if the latter is added in larger quantity the jelly is green. The jellies dissolve in hydrochloric acid, but re-form on neutralising the solution if sufficient sodium acetate is present. 

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