Lime acetate

Insoluble salts 0-12 soluble 0-16 consisting of phosphates of lime and magnesia, alumina, sulphate snd oxalate of lime, acetates, malate of 0-28 lime, potassa, and soda, alkaline chlorides, and sulphates,. J... 

SYNS ACETATE of LIME BROWN ACETATE CALCIUM DIACETATE GRAY ACETATE LIME ACETATE LIME PYROLIGNITE SORBO-CALCIAN SORBO-CALCION TELTOZAN VINEGAR SALTS... 

Synonyms CAS 62-54-4 ACETAXEOf lime brown acetate calcium diacetate gray acetate LIME ACETATE LIME PYROLIGNITE SORBO-CALOAN DIACETATE VINEGAR SALTS... 

UM6045. See Silicone elastomer Lime. See Calcium oxide Lime acetate. See Calcium acetate Lime, chemical, dolomitic. See Dolomitic lime Lime chloride Lime, chlorinated. See Calcium hypochlorite... 

Dumas published four other memoirs on the theory of types which will be referred to in appropriate places. Dumas and Stas record the first use of potash-lime , the precursor of soda-lime, an invaluable reagent in organic chemistry. They point out the relation between amyl alcohol and valeric acid and between ordinary alcohol and acetic acid. By the action of alkali (heating an acetate with potash-lime) acetic acid forms marsh gas and carbonic acid ... 

Calcium acetate (vinegar salts, gray acetate, lime acetate, and brown acetate) n. (CH3C00)2Ca-H20. A stabilizer. 

Acids are found in many common foods. The molecules shown here are citric acid (upper left), the acid found in lemon and limes acetic acid (upper right), the acid present in vinegar and tartaric acid (lower left), one of the acids used to coat sour gummy candies. 

Calcium complex soap greases, obtained by the reaction of lime and a mixture of fatty acids and acetic acid. These greases offer good high temperature and anti-wear/extreme pressure properties related to the presence, in the soap, of calcium acetate that acts as solid lubricant they have good mechanical stability. 

Prepare the acetylating mixture by adding i volume of acetic anhydride to 4 volumes of pure anhydrous pyridine, and shaking thoroughly. Immediately before use, transfer the mixture to a clean dry burette having a welUfitting glass tap, and then close the top of the burette by means of a soda-lime tube. 

A more constrained opportunity for nitrate bioremediation arose at the US-DoE Weldon Spring Site near St. Louis, Missouri. This site had been a uranium and thorium processing faciUty, and treatment of the metal had involved nitric acid. The wastestream, known as raffinate, was discharged to surface inpoundments and neutralized with lime to precipitate the metals. Two pits had nitrate levels that requited treatment before discharge, but heavy rains in 1993 threatened to cause the pits to overflow. Bioremediation by the addition of calcium acetate as a carbon source successfully treated more than 19 million liters of water at a reasonable cost (75). 

Acid—Base Chemistry. Acetic acid dissociates in water, pK = 4.76 at 25°C. It is a mild acid which can be used for analysis of bases too weak to detect in water (26). It readily neutralizes the ordinary hydroxides of the alkaU metals and the alkaline earths to form the corresponding acetates. When the cmde material pyroligneous acid is neutralized with limestone or magnesia the commercial acetate of lime or acetate of magnesia is obtained (7). Acetic acid accepts protons only from the strongest acids such as nitric acid and sulfuric acid. Other acids exhibit very powerful, superacid properties in acetic acid solutions and are thus useful catalysts for esterifications of olefins and alcohols (27). Nitrations conducted in acetic acid solvent are effected because of the formation of the nitronium ion, NO Hexamethylenetetramine [100-97-0] may be nitrated in acetic acid solvent to yield the explosive cycl o trim ethyl en etrin itram in e [121 -82-4] also known as cyclonit or RDX. 

Acetyl chlotide was formerly manufactured by the action of thionyl chlotide [7719-09-7], CI2OS, on gray acetate of lime, but this route has been largely supplanted by the reaction of sodium acetate or acetic acid and phosphoms ttichlotide [7719-12-2] (24). A similar route apparently is stiU being used in the Soviet Union (25). Both pathways ate inherently costly. 

Acetone was originally observed about 1595 as a product of the distillation of sugar of lead (lead acetate). In the nineteenth century it was obtained by the destmctive distillation of metal acetates, wood, and carbohydrates with lime, and pyrolysis of citric acid. Its composition was determined by Liebig and Dumas in 1832. 

Until World War 1 acetone was manufactured commercially by the dry distillation of calcium acetate from lime and pyroligneous acid (wood distillate) (9). During the war processes for acetic acid from acetylene and by fermentation supplanted the pyroligneous acid (10). In turn these methods were displaced by the process developed for the bacterial fermentation of carbohydrates (cornstarch and molasses) to acetone and alcohols (11). At one time Pubhcker Industries, Commercial Solvents, and National Distillers had combined biofermentation capacity of 22,700 metric tons of acetone per year. Biofermentation became noncompetitive around 1960 because of the economics of scale of the isopropyl alcohol dehydrogenation and cumene hydroperoxide processes. 

Titanium Silicides. The titanium—silicon system includes Ti Si, Ti Si, TiSi, and TiSi (154). Physical properties are summarized in Table 18. Direct synthesis by heating the elements in vacuo or in a protective atmosphere is possible. In the latter case, it is convenient to use titanium hydride instead of titanium metal. Other preparative methods include high temperature electrolysis of molten salt baths containing titanium dioxide and alkalifluorosiUcate (155) reaction of TiCl, SiCl, and H2 at ca 1150°C, using appropriate reactant quantities for both TiSi and TiSi2 (156) and, for Ti Si, reaction between titanium dioxide and calcium siUcide at ca 1200°C, followed by dissolution of excess lime and calcium siUcate in acetic acid. 

Volatile acids, reported as acetic acid, are the most important operational parameter. In a weU-operating digestion process, the value should be <1 g/L (3.8 g/gal). A value >6 g/L (23 g/gal) indicates malfunctioning optimum pH is 6.8—7.2, and a pH <6.8 indicates excessive volatile acid production. Formerly, lime was added to the digester contents if the pH showed an undesirable drop. However, the reduction in pH indicated a change in organism that could not be remedied with lime (2). 

Milling Yellow G [51569-18-7]. Salted out three limes with sodium acetate, then repeatedly extracted with EtOH. [McGrew and Schneider J Am Chem Soc 72 2547 1950.] See Solochrome Violet R on p. 352 in Chapter 4. 

Chemical Reactivity - Reactivity with Water Forms lead dioxide and acetic acid in a reaction that is not violent Reactivity with Common Materials May corrode metals when moist Stability During Transport Stable Neutralizing Agents for Acids and Caustics Dilute with water, rinse with dilute sodium bicarbonate or lime solution Polymerization Not pertinent Inhibitor of Polymerization Not pertinent. 

Commercial acetic acid is manufactured fiom pyroligneous acid obtained in the destructive distillation of wood. The latter is neutralised with lime, and separated by distillation from wood-spirit and acetone. The crude calcium acetate, which has a dark colour, is then distilled with the requisite quantity of concentrated hydrochloric acid. Anhydrous or glacial acetic acid is obtained by distilling fused sodium acetate with concentrated sulphuric acid. 

The reaction lesembles the fonnation of methane from sodium acetate when heated with soda-lime. 

Mondello et al. (2, 20-23) have used a multidimensional gas chromatographic system based on the use of mechanical valves which were stable at high temperatures developed in their laboratory for the determination of the enantiomeric distribution of monoterpene hydrocarbons (/3-pinene, sabinene and limonene) and monoterpene alcohols (linalol, terpinen-4-ol and a-terpineol) of citrus oils (lemon, mandarin, lime and bergamot). Linalyl acetate was also studied in bergamot oil. The system consisted of two Shimadzu Model 17 gas chromatographs, a six-port two-position valve and a hot transfer line. The system made it possible to carry out fully... 

Holz-kalk, m. pyrolignite of lime (crude calcium acetate), -kaiton, m. wood-pulp board, -kassle, /. cassia lignea, coarse cassia bark, -kasten, m. wooden box, case or vat. -kirsche. /. wild cherry. -kistchen, n. wooden box. -kitt, m. wood cement, joiner s putty, -klotz, m. wooden block, wood block, -kocher, m. (Paper) digester (for wood), -kokle,/. charcoal (from wood). 

Weiss-gUldenerz, -giiltigerz, n. argentiferous tetrahedrite, -guss, m. white metal white malleable cast iron, -hitze, /, white heat, -kalk, m. pyrolignite of lime (crude calcium acetate) fat lime, white lime, -keraguss, m. white-heart malletxble iron. 

Lead is relatively easily corroded where acetic acid fumes are present and under such conditions it either should not be used or should be efficiently protected. Generally, any contact between lead and organic material containing or developing acids will cause corrosion for instance, unseasoned wood may be detrimental. Trouble from this cause may be prevented by using well-seasoned timber, by maintaining dry conditions, or by separating the lead from the timber by bitumen felt or paint. Lead is also subject to attack by lime and particularly by Portland cement, mortar and concrete, but can be protected by a heavy coat of bitumen. A lead damp-proof course laid without protection in the mortar joint of a brick wall may become severely corroded, especially where the brickwork is in an exposed condition and is excessively damp. 

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