Mordant blue

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. 

Syoyama and Nogima reported a colorimetric method for the detection of procaine in urine, where the drug and other phenethylamines were extracted [46]. The extraction involved ion association with Chrome Azurol S (C.I. Mordant blue 29), and was applied to a screening test for the drug and other related amines. 

Cyprus blue, chromotrope blue, acid chrome blue, chrome fast blue, anthracene chrome blue, fast mordant blue, salicfne chrome blue, monochrome blue, etc. t2 s ga.gls gSlSSag 3 s. t c = 0 if3 a ... 

To titrate alkylchlorosilanes such as trimethylsilicon chloride, dimethylsilicon dichloride, methylsilicon trichloride and silicon tetrachloride, titration in methyl cyanide with 0.05 n phenazone or nitron in methyl cyanide, or with a solution of amidopyrine in benzene by visual and potentiometric methods is suggested173. The indicators used are crystal violet, dimethylaminoazobenzene, bromocresol purple, methyl orange, bromo-phenol blue and gallo sea blue (C.I.-Mordant Blue 14) the addition of benzene, toluene, chlorobenzene or carbon tetrachloride does not effect the results. 

Gallocyaitine, i -Carboxy 7 tdimethylawino)-J,4-dihydroxyphenoxaztn-5-ium chloride Cl Mordant Blue W ... 

Mordant blue 79 1-Naphthalenesulfonic acid, 4-hydroxy-3,4 -azodi-, disodium salt 1-Naphthalenesulfonic acid, 4-hydroxy-3-[(4-sulfo-1-naphthalenyl) azo]-, disodium salt 2-(4-Sulfo-1 -naphthylazo)-1 -naphthol-4-sulfonic acid, disodium salt... 

MOPS-Na, MOPS sodium salt. See Sodium 3-morpholino propane sulfonate Morcryl 134. See Styrene/acrylates copolymer Mordant blue 79. See Acid red 14 Mordant green 11. See Acid green 19 Mordant red 11. See Alizarin Mordant rouge. See Aluminum diacetate Morellone. See Benzyl dipropyl ketone... 

Mordant blue 29 Anionic Triphenyl methane 420 Guibal et al. (2003)... 

Thorium mordant blue S acetate buffer pH 6.5 UV irradiation 100 156]... 

Eriochrome Cyanine R (C. I. Mordant Blue 3, Solochrome Cyanine R), a triphenylmethane dye, forms, in weakly acid solution, a violet lake with aluminum ions which is the basis of a spot test for the metal, One drop of the acidified sample is placed on a test plate and mixed with one drop each of Na acetate-acetic acid buffer solution (pH 5) and 1 % aqueous Eriochrome Cyanine R. The pH should be 4-6. One drop of NaHSOg solution is added. The formation of a violet color which is stable for 1 minute indicates the presence of aluminum. Iron i salts must first be reduced with ascorbic acid. Ti, Zr and Th ions form colored precipitates which must be centrifuged off. Cu must be masked with thioglycolic acid. 

Chromeazurole (Alberon, C. I. Mordant Blue 29), a fuchsin dye, gives a red-violet color lake with beryllium in weakly acid solution. One drop of the test solution is treated on a spot plate with a drop of 2 iV sodium acetate and one drop of the yellow alcoholic dye solution. Quantities of beryllium above 1 y yield a deep violet color. Smaller amounts (down to 0.3 y) give a pink color with a blue edge adhering to the spot plate. Iron, aluminum, zirconium and copper salts likewise give color lakes with chromeazurole. These interferences can be avoided by masking with EDTA,NaF and tartaric acid. 

Test with Alizarin Blue (G.I. Mordant Blue 23) ... 

The dyestuff Solochrome Azurine B (C.I. Mordant Blue 1) is also known as Chromaxan Pure Blue B Pontachrome Azure Blue B, and Acid Chrome Blue V. 

Eriochrome cyanine R (also known as mordant blue 3) + CTAB... 

Dihydroxy-3-[ 2-hydroxy-5-sulfophenyl)azo]-2J-naphthalenedisulfonic acid. 7- 2-Hydroxy-5-sulfophenylazo) chromotropic acid. C.I. Mordant blue 31. C.L 16675 [25849-37-0]... 

Hydroxy-3-[ 4 -sulfo-l-naphthalenyl)azo]-l-naphthalenesulfonic acid, 9CL C.I. Chromotrope FB. C.I. Acid red 14. C.I. Food red 3. C.I. Mordant blue 79. C.I. 14720. Brilliant carmoisine. Lissamine red W. Nacarat. Numerous other proprietary names... 

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-I-ylidene) (2,6-dichloro-3-sulfophenyl)methyl -2-hydroxy-3-methylbenzoic acid, 9CL Chrome azurol S. Solochrome brilliant blue. Alberon. C.L Mordant blue 29. C.L 43825. CAS... 

Hydroxy-6-[ 4-sulfo- l-naphthalenyl)azo]-1-naphthalenesulfonic acid, 9CI. T-Hydroxy-1,2 -binaphthyl-4,5 -disulfonic acid. C.I. Acid red 12. C.I. 14835. C.I. Mordant blue 78. Eniacromo blue R. Fast red VR. Omega chrome blue F4B. Carmoisine BL. Azochromol blue F4B [25317-25-3]... 

---