Methyl acetate 828 INDEX

Aminabhavi, T.M. and Banerjee, K. Density, viscosity, refractive index, and speed of sound in binary mixtures of acrylonitrile with methyl acetate, ethyl acetate, n-propyl acetate, n-butyl acetate, and 3-methylbutyl-2-acetate in the temperature interval (298.15-308.15) K, / Chem. Eng. Data, 43(4) 514-518, 1998b. 

Capello et al.16 applied LCA to 26 organic solvents (acetic acid, acetone, acetonitrile, butanol, butyl acetate, cyclohexane, cyclohexanone, diethyl ether, dioxane, dimethylformamide, ethanol, ethyl acetate, ethyl benzene, formaldehyde, formic acid, heptane, hexane, methyl ethyl ketone, methanol, methyl acetate, pentane, n- and isopropanol, tetrahydrofuran, toluene, and xylene). They applied the EHS Excel Tool36 to identify potential hazards resulting from the application of these substances. It was used to assess these compounds with respect to nine effect categories release potential, fire/explosion, reaction/decomposition, acute toxicity, irritation, chronic toxicity, persistency, air hazard, and water hazard. For each effect category, an index between zero and one was calculated, resulting in an overall score between zero and nine for each chemical. Figure 18.12 shows the life cycle model used by Capello et al.16... 

Methyl acetate is indexed at acetic acid, methyl ester. 

Over-exposure to this colorless liquid can irritate nose and throat (Merck Index). Methyl acetate has a sweet, and extremely diffusive, ethereal-fruity odor of very poor tenacity (Arctander, 1967). 

An index is included at the end of the book which lists potential sources or origins for the contaminant of concern of interest. The index also includes compounds for which degradation products are known, e.g., the presence of 1,1-dichloroethane at a site may be indicative of a release containing 1,1,1-trichloroethane (where 1,1-dichloroethane is present as an impnrity) or it may be a degradation product of 1,1,1-trichloroethane. Therefore, under the 1,1-dichloroethane entry, the reader is directed to the chemical profile 1,1,1-trichloroethane. Moreover, the index inclndes compounds which occur as additives to various products, e.g., acrolein nsually contains hydroqninone to prevent polymerization. Many commercial prodncts released into the enviromnent may contain other compounds present as impurities, e.g., 1,4-dioxane may contain the impurities acetic acid, 2-methyl-1,3-dioxolane, and bis(2-chloroethyl) ether. 

As pointed out by Skrabal and Schiffrer [173], the rate-determining step must be in the transition from acetal to hemiacetal because the rate coefficient for the hydrolysis of methyl ethyl formal is equal to the mean value of those for the hydrolyses of dimethyl formal and diethyl formal. Wolf and Hero Id [174] supplied more direct evidence on this matter. They found that the UV absorption bands of aldehydes slowly decrease in alcoholic solutions. This indicates that a reaction takes place. The product of the reaction immediately splits off aldehyde under the conditions of a bisulfite titration, therefore it cannot be acetal and it must be hemiacetal. Acetals are much more stable, and they are not hydrolyzed in a bisulfite titration. A quantitative kinetic study of the reaction of aldehyde with alcohol was carried out by Lauder (175] with the aid of dilatometric and refractive index measurements. He observed that hemiacetal is formed in a relatively fast reaction which is followed by a slow reaction leading to acetal. 

In the case of lower alcohols esters are indexed only under the acid, e.g. propionic methyl ester, not methyl propionate. Ethyl is normally omitted e.g. acetic ester. 

Methyl Mercury Acetate CAS 108-07-6 Agent Index A152 Methyl Mercury Propionate ... 

In this project, distinguishing properties of the 10 organic liquids should be observed (Part A) and unknowns subsequently identified (Part B) according to an SOP which I wrote for this. The properties are (1) water miscibility, (2) density, (3) viscosity, (4) refractive index, and (5) odor. The 10 organic liquids are acetone, methanol, ethanol, isopropyl alcohol, heptane, cyclohexane, toluene, methyl ethyl ketone, butanol, and ethyl acetate. 

Synonyms Acetic acid, 2-methyl phenyl ester Acetic acid, o-tolyl ester o-Acetoxytoluene Acetyl o-cresol o-Cresol acetate o-Cresylic acetate 2-Methylphenyl acetate o-Methylphenyl acetate 2-Methylphenyl ester of acetic acid o-Tolyl acetate Empirical C9H10O2 Formula CH3COOC6H4CH3 Properties Liq. sol. in hot water, org. soivs., oils nearly insol. in cold water m.w. 150.18 dens. 1.05 b.p. 208 C ref. index 1.4998 Precaution Combustible Uses Synthetic flavoring agent in foods and pharmaceuticals cosmetics ingred. 

Synonyms Acetic acid-4-methylphenyl ester 4-Acetoxytoluene p-Acetoxytoluene Acetyl p-cresol p-Cresol acetate p-Cresylic acetate 4-Methylbenzoic acid methyl ester 4-Methyl phenyl acetate p-Methylphenyl acetate Paracresyl acetate p-Tolyl acetate p-Tolyl ethanoate Classification Aromatic ester Empirical C9H10O2 Formula CH3CO2C6H4CH3 Properties Colorless liq., anise sweet fragrant odor sol. in fixed oils, propylene glycol misc. with alcohol, ether insol. in water, glycerin m.w. 150.18 dens. 1.047 b.p. 210-211 C dec. 360 C flash pt. 90 C ref. index 1.5010 Toxicology LD50 (oral, rat) 1900 mg/kg, (skin, rabbit) 2100 mg/kg mod. toxic by ing. and skin contact irritant TSCA listed Precaution Combustible Hazardous Decomp. Prods. Heated to decomp.. 

Cyclohexanone diethyl ketal. See Cyclohexanone diethyl acetal Cyclohexanone, [(3,3-dimethylbicyclo [2.2.1] hept-2-yl) methyl]-2-methyl-CAS 68901-22-4 Classification Polycyclic ketone Properties Coioriess to yel. iiq. sp.gr. 0.977-0.985 (20/4 C) ref. index 1.496-1.501 Uses Fragrance in cosmetics, household prods. 

Properties M.w. 184.31 sp.gr. 0.993-0.997 b.p. 95-97 C (13 mm Hg) ref. index 1.579 Toxicology TSCA listed Uses Reducing agent for prep, of silyl-substituted alkylidene complexes of tantalum, in ionic reduction of enones to sat. ketones, in reductive cyclization of unsat. ketones, for esters in presence of zinc hydride catalyst, for o-halo ketones in presence of Mo(0), reduction of thio esters to ethers, esters to alcohols with Rh catalysis, in assym. reduction of methyl ketones, reductive cleaving of allyl acetates Manuf./Distrib. ABCR http //www.abcr.de, Alfa Aesar http //www.aifa.com-. Digital Spec. Chems. http //www.digHaichem.com, Fluorochem USA... 

Methyl 2-(acetylamino) benzoate Methyl N-acetylanthranilate. See Methyl acetylaminobenzoate 1-Methyl-4-acetyl benzene. See4 -Methyl acetophenone Methyl acetyl ricinoleate CAS 140-03-4 EINECS/ELINCS 205-392-9 Synonyms Methyl 12-acetoxy-9-octadecenoate Methyl 12-acetoxyoleate Ricinoleic acid, methyl ester, acetate Empirical C21H38O4 Formula Ci7H32(OCOCH3)COOCH3 Properties Cryst sol. in mostorg. soivs. insol. in water pale yel. liquid mild odor m.w. 1306.59 sp.gr. 0.938 m.p. -15 C flash pt (COC) 196 C ret index 1.4545... 

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