Charcoal, wet

Charcoal screenings, wet Charcoal, wet Chlorine azide Chlorine dioxide Chloroacetaldehyde Chloroacetone (unstabilized) Chloroacetonitrile Chloroformates, n.o.s. Chloroprene, uninhibited Chlorosulphonic acid Coal briquettes, hot Coke, hot Copper acetylide... 

Charcoal screenings, wet Charcoal, wet Chlorine azide Chlorine dioxide Chloroacetaldehyde Chloroacetone (unstabilized)... 

Activated carbon Activated charcoal Carbon, activated, 4.2 Carbon, animal or vegetable origin, 4.2 Carbon black (animal or vegetable origin) Carbon, non-activated, mineral origin Charcoal Charcoal, activated Charcoal briquettes, shell, screenings, wood, etc, 4.2 Charcoal, non-activated Charcoal screenings, wet Charcoal, wet Lampblack Non-activated carbon Non-activated charcoal... 

Baking povrder, carbon black, powdered coal, charcoal, wet sugar pulp, powdered feldspar. 

A wet-ashing technique used for dissolution of graphite in perchloric acid involved boiling a mixture of 70% perchloric acid and 1% of chromium trioxide as an aqueous solution. This method was later applied to 6-14 mesh charcoal, and after boiling for 30 min the reaction rate increased (foaming) and accelerated to explosion. The charcoal contained traces of extractable tar. 

Linzon reported snb symptoms on white pine after several days of wet weather followed by a continuous sunny period. Symptoms were noted several times during the 1957-1964 growing seasons at Chalk River, Ontario, but time of occurrence did not correlate well with peak oxidant concentrations. Berry and Ripperton observed emergence tipbum on susceptible trees in West Virginia several days after oxidant peaks of 0.065 ppm. They found that container-grown susceptible pine clones were protected from injury if placed in a chamber supplied with charcoal-filtered air. 

Activated charcoal, purified - place about 50 g Darco C-5 activated carbon in a wide-neck screw-cap container, add sufficient calcium phosphate extractant to completely wet it, then cap the bottle and shake for 5 min. Filter slowly with suction through a Buchner funnel, then wash three times successively with deionized water. Test the final leachate with a solution of barium chloride (approximately 1.4% m/v in 0.3 M HCI). If turbidity indicates the presence of sulphate, return the charcoal to a beaker, thoroughly mix with deionized water (boil for 15 min if necessary to get a clear test), refilter, wash and test for S as above. When satisfactory, dry overnight at 105°C and store in a tightly capped bottle. 

It is more tlian probable that these variations in the apparent densities of charcoals are to be ascribed to a difference in the depths of penetration of the hquids. Thus non-wetting liquids such as mercury would not readily penetrate the large macropores in the solid, far less into the micropores (below 100 A. in diameter) which exist in charcoal. We should thus anticipate that when mercury is employed as immersion liquid the charcoal density would be but small. Actually a value of only 0 865 was obtained by Harkins and Ewing. 

On immersion of even well outgassed charcoal in water we must imagine that many of the micropores are not filled with water and thus an apparent diminution of the density of the solid occurs. These micropores cannot of course be empty for otherwise there is no reason why the liquid wetting the sides of the tubes should not fill them. If the micropores still contain small traces of gases not removed by the process of outgassing these will be compressed into pockets at the ends of the blind tubes, the pressure in the case of a micropore of 100 A. diameter would be about sixteen atmospheres. 

Perez Ara (Ref 2), under die name Papel explosivo de Pelez describes an expl prepd by wetting art ordinary blotting paper in aqueous syrupy suspension contg K clorate 45.5, K ferrocyanide 11.5, Na chloride 24.5, charcoal 11.5 starch 7.0%. This compn is similar to that of Peley (Papier explosible) given by... 

While heats of wetting for a solid in a variety of pure liquids can be informative, heat values as a function of the amount of preadsorbed wetting liquid are more desirable. The data of Table V for the immersion of bare and monolayer-covered samples of graphite illustrate the limitations of single heat measurements. The more comprehensive studies applied to the immersion of rutile in the n-butyl derivatives should furnish answers to questions concerning the nature of the adsorbed film on this solid. Indeed, preliminary measurements substantiate the assumption of an oriented monolayer of adsorbed alcohol on rutile made in Sec. V,B. Unlike water-solid systems, almost no comprehensive heat measurements have been reported for solid-organic liquid systems except that of Razouk (49) for the immersion of bare and film-covered samples of a porous charcoal in methyl alcohol and the recent work of Pierce et al. (60) on carbon-benzene systems. Such information would be most instructive. 

To a well-stirred, warm suspension of 6.0 g LAH in 100 mL anhydrous dioxane, there was added a warm solution of 3.2 g of 5-methoxy-3-indolylglyoxylamide in 100 mL of anhydrous THF. The mixture was held at reflux for 38 h, cooled, and the excess hydride decomposed by the sequential addition of wet dioxane followed by 10 mL 5% aqueous NaOH. The resulting solids were removed by filtration, and extracted several times with boiling dioxane. The filtrate and washings were combined, dried over solid KOH, stripped of solvent under vacuum yielding an oily residue. This was dissolved in 80 mL warm benzene, decolorized with charcoal, and the filtered solution treated with an anhydrous solution of HCI in EtOH until it was acidic. The precipitate that formed weighed, after air drying, 1.1 g (29%) with mp 230-235 °C. This solid was recrystallized from EtOH, which provided the product 5-methoxytryptamine hydrochloride... 

Tennessee Whiskey. Tennessee whiskey is a product made by Tennessee distillers and processed in a manner similar to bourbon. However, Tennessee whiskey is filtered through maple charcoal prior to maturing which gives it its distinctive flavor. Tennessee distillers make their own charcoal by slowly burning 1.8-m lengths of hard maple wood. During the burning process the wood is periodically wet down to cause it to char rather than... 

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