Light 697 violet

Benzoazurine Paper. Dye soln-prepd by dissolving 2g of the product, supplied by Hartman-Leddon Co, in 1900ml of w and 100ml of glycerin Bluish-violet - Light violet Bleached... 

Trypan Red Paper. Prepd as above from product supplied by the Allied Chemical Dye Corp Rose-red - Light violet -> Bleached 0.1% Ethyl Violet Paper. Prepd as above from product supplied by National Aniline Dye Co Medium violet Blue - Bleached... 

FIGURE 16.10 Development of the pyrolyzed terpenes of B. carterii (lane 1) and B. serrata (lane 2). The marked violet zone (Rf 0.73) of lane 1 and the light violet zone (Rf 0.55) of lane 2 were used for further purification steps. 

UCARMAG 527 Control Fluoresoein before saline wash Not substantive (very light violet)... 

The aminophenol hydrochloride can be further purified by dissolving in hot water, cooling, and adding concentrated hydrochloric acid. It crystallizes in beautiful crystals, but the light violet color is very difficult to remove. 

These exist in two isomeric forms c/s-salts which are violet-red in colour, and frans-salts which are light violet-red in colour. 

The first two compounds are greenish blue, the latter are light violet in colour. All are crystalline, and separate in star-like crystals. In concentrated solution the separation of the compounds is almost quantitative.5... 

The product obtained by (III) is hygroscopic and water-soluble, in contrast to the material from (I) and (II). it is light violet in color, and it must be kept out of contact with atmospheric moisture. 

Cone. HC1—A light violet or brown coloration on warming, changing to orange with cone. HN03. 

Azo acid violet, anthosine violet, domrngo violet, eno fast purple, ethyl acid violet, fast sulphon violet, mdo violet, lanacyl violet, omega light claret, omega light violet, sulphon violet, Victoria violet, wool violet... 

Vanillin. Table VI shows that the reference compound, vanillin, is located at an Rf value of 0.68, and the spot is light violet after applying the location sprays. There is a corresponding compound at an Rf value of 0.67 for the reaction mixture of vanillyl alcohol and alkali, and it is also light violet when sprayed similarly. 

A sample of 10.2 mg (24.4 mmol) of powdered lb was irradiated with UV light for 6 h. The resulting violet solid was then extracted with dichloromethane for 4 h to remove unreacted monomer. Drying in vacuo to constant mass gave 1.8 mg (18%) of 2b as a light-violet solid, mp >320°C. 

Ten grams (0.41 mol) of magnesium turnings and 150 ml. of anhydrous ethyl ether are placed in the flask, and through the funnel is added dropwise a solution of 42 ml. (53.8 g. 0.39 mol) of Ti-butyl bromide (density, 1.28) in 100 ml. of anhydrous ethyl ether. This dropwise addition takes place over a period of about 3 hours, during which time the mixture is continually stirred. The mixture is warmed until the reaction has started, and the rate of addition is adjusted so that the ether just refluxes. J The reaction mixture is light violet until the reaction is initiated, whereupon it becomes a turbid white and finally a dark gray. 

Synonyms Chrome alum, Chromium and potassium sulfate, Potassium chromium sulfate. Appearance Dark violet-red crystals (ruby red by transmitted light) or light violet powder. Uses Preparation of chrome alum fixing bath as hardening agent for gelatin. 

D13 — French origin. Light violet tubers, ovoid (oblong) shaped. Maintained by Institut National de la Recherches Agronomique (INRA), UMR-DGPC, Montpellier, France (INRA MPHE001376) limited immediate availability. 

Thin-layer Chromatography. System TD—Rf 25 system TE—Rf 52 system TF—Rf 71. (Location under ultraviolet light, violet fluorescence.)... 

Thin-layer Chromatography. System TA—Rf 58 system TD—Rf 00 system TE—Rf 00 system TF—Rf 00 system TL—Rf 00 system TM—Rf 00. (Location under ultraviolet light, violet fluorescence mercuric chloride-diphenylcarbazone reagent, blue acidified potassium permanganate solution, positive Van Urk reagent, blue.)... 

The appearance of a light violet-colored flocculent precipitate (unreaoted tetren) at this point indicates that the reaction was not complete and the Co (III) complex is then difficult to purify. 

PZ White Celadon Light yellow Light violet White/gray White/yellow White/blue Light violet... 

TM Blue Yellow green Light violet Blue White blue Pink blue White/gray White/blue with white border... 

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