Wool green

WoU-faser, /. wool fiber, -fett, n. wool fat, wool grease, -fettsaure, /. wool fat acid, -filz, m. wool felt, -gam, n. woolen yarn, -gamfett, n. wool yarn grease, -griin, n. wool green. woUig, a. woolly. 

Leuco wool green S from tetramethyidiaminobenzhydrol and R salt. 307 Leuco wool blue 5B from o-chloro-p>dimethyIaminobenzaldehyde and... 

The hydrol can also be prepared, although less satisfactorily, by alkaline reduction of Michler s ketone. The hydroxyl group in the hydrol is extremely reactive it is alkylated, for example, merely by boiling with alcohol. The technical importance of the hydrol arises from the ease with which it condenses with various aromatic compounds to form leuco compounds of triphenylmethane dyes (see wool green S, page 307). 

Water blue, Methyl blue. Wool green, Naphthol red S, Scarlet GR, Fast acid magenta. Tartrazlne azo add red. Add yellow, and other dyestuffs H-/OlO/ 1213,214.2151... 

High purity hexafluorozirconic acid and its salts are produced by Advance Research Chemicals of the United States, and Akita and Moritta of Japan. The technical-grade green-colored material is suppHed by Cabot Corp. of the United States. In 1993, the U.S. market for fluorozirconic acid was about 250,000 kg/yr the world market was less than 500,000 kg/yr. A principal part of this production is consumed by the wool, garment, and upholstery industries. The 1993 price varied between 2.4 to 6.6/kg depending on the quaUty and quantity required. Potassium fluorozirconate [16923-95-8], K ZrF, is commercially important the world market is about 750,000 kg/yr. The most important appHcation is as a fire-retardant material in the wool (qv) industry, for the manufacture of garments, upholstery for aeroplane industry, and children s clothes (see Flame retardants). The 1993 unit price was between 5.0 and 6.6/kg. 

Various methods of home-dyeing cotton and wool materials using natural dyes made from hulls of butternut, hickory nut, pecan, eastern black walnut, and Knglish walnut have been described (149). As far back as during the Civil War, butternut hulls have been used to furnish the yellow dye for uniforms of the Confederate troops. More recent attempts have been made to manufacture yellow and brown dyes from filbert shells on a commercial scale. The hulls are treated with copper sulfate and concentrated nitric acid to produce a yellow color, with ferrous sulfate to produce oHve-green, or with ammonia to produce mby-red (150) (see Dyes AND DYE INTERMEDIATES Dyes, natural). 

In 1894 the first two anthraquinone acid dyes. Cl Acid Violet 43 [4430-18-6] (2) (Cl 60730) and Cl Acid Green 25 [4403-90-1] (3) (Cl 61570) were invented. This encouraged the subsequent development of various kinds of anthraquinone acid dyes, which were used to dye wool in fast, brilliant shades without need for pretreatment. 

We rode through the steep green hills and red earth of the Welsh Marches and into the more open land around Hereford. The fields were just beginning to haze with green, and ewes heavy with wool butted their sturdy lambs away impatiently. I pointed them out. There is your private wealth, sire, and England s too. Your father has left you well provided for. ... 

Sejian V. Climate change, Green house gas emission and sheep production. In Shinde AK, Swamkar CP, and Prince LLL (eds.), Status Papers on Future Research in Sheep Production and Production Development, 50 Years Research Contributions 962-2012), published by Director, Central Sheep and Wool Research Institute, Avikanagar, Rajasthan-304501, 2012 p. 155-178. 

The tube is positioned in a tube furnace so that the boat is near the center of the furnace, a thermocouple is introduced in the open end, and the open end of the furnace is plugged with Pyrex wool. The tube is evacuated and the temperature raised to 450° at about 3° per minute. A transitory blue deposit is formed in the cool portion of the tube at 200° at 300°, a green ring forms in the tube just inside the furnace at 300 to 350°, a blue-black deposit, presumably a mixture of rhenium (V) bromide and rhenium (VI) oxide tetrabromide,2 forms in the portion of the tube just outside the furnace at 350 to 370°, a blue-black... 

Catalytic fading of certain mixtures of acid dyes on nylon, wool and their blends is a particularly significant problem of dye selection for carpets [165]. Xenotest ratings as low as 3-4 (much bluer) were found for green shades on nylon containing an azopyrazolone component such as Cl Acid Yellow 19 (3.150), which fades much more rapidly in the presence... 

The members of this class dye wool and silk directly, but cotton only when the latter is mordanted by tannin. They are fast neither to acids nor to alkalis for reasons which depend on important alterations in the compounds. If a little dilute hydrochloric acid is added to an aqueous solution of crystal violet the colour changes to green. One N(CH3)2-group takes part in the change and there is formed the salt with two equivalents of acid ... 

Do assassin bugs really collect damar for its chemicals The resin serves their needs because it does not harden quickly but remains soft and sticky. Softness and stickiness are physical properties, but they are also direct consequences of the resin s chemical composition. It seems fair to credit the bugs employment of damar to its complex mix of chemicals. We could also ask whether green lacewing larvae appropriate aphid wool for its chemicals. In that case, the significance of chemical properties appears unequivocal, as the ants chemical sense evidently equates the waxy wool with aphids. 

The contents of the flask is cooled, filtered through cotton wool, washings done with DW and the filtrate diluted to about 350 ml with DW. This dilution is a must so as to avoid any interference caused by its inherent green colour with the estimation of the equivalence point in the titration as per the following chemical reaction ... 

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