Water oily, analysis

The reaction is quenched by the addition of 1.28 g (2.94 mmol) of molybdenum pentoxidc/pyridinc/UMPA, and the yellow slurry is stirred initially at OX (30 min), then for 45 min at 25 X. The mixture is added to 1 N sodium hydroxide and extracted with diethyl ether. The ethereal solution is washed with brine, dried over Na,S04 and concentrated in vacuo to give 0.705 g (100%) of an oily, light-yellow solid. Analysis of the crude aldol adduct by 1 C NMR and analytical HPLO (Waters, Radial Pak, 8 mm x 10 cm, silica gel, ethyl acetate/hexane, 15 85) indicates only one. un-diastereomer (2X3S ) accompanied by approximately 10% of the two ethyl acetate/hexane affords fine white needles yield 0.359 g (57%) mp 155.5 156.5X (a]u -92.5 (c = 0.0294, CHCfi). 

The top layer was washed with water and ethylene glycol and dried to give 135 g of a yellow oily material that from infrared spectral analysis was identified to be the same triol used to prepare the flexible polyurethane foam. 

An adequate drainage system should be provided for all locations where a large amount of hydrocarbon liquids has the possibility of release and may accumulate within the terms of the risk analysis frequency levels. Normal practice is to ensure adequate drainage capability exists at all pumps, tanks, vessels, columns, etc., supplemented by area surface runoff or general area catch basins. Sewer systems are normally gravity flow for either sanitary requirements or oily surface water disposal. Where insufficient elevation is available for the main header, lift stations are installed with a forced pressure outlet header to a disposal or treatment system. 

In solution, the drug may hydrolyze to yield diethylaminoethanol and 4-aminobenzoic acid. For the analysis, the sample solution is treated with 0.2 M (NH4>2Zn(SCN)4, heated to the onset of boiling, and cooled with slow rotational mixing for 4 minutes. This process yields clear solution and an oily precipitate, which is filtered through cotton wool. The filter is washed with 10% NH4SCN solution, and cooled to IT C. The precipitate is dissolved in acetone or dimethylformamide. Water, ammonia buffer solution (pH unspecified), and acid chrome black special indicator are added, and the mixture titrated with 10 mM EDTA to determine Zn(II), and hence procaine. 

Kornmiiller A, Cuno M, Wiesmann U (1996) Ozonation of oil/water-emulsions containing polycyclic aromatic hydrocarbons. International Conference Analysis and utilisation of oily wastes , AUZO 96, Proceedings, Vol. I, Technical University of Gdansk, Poland. 

Methyl-l-piperazinyl)benzimididazole (5.00 g) prepared as above is dissolved in N,N-dimethylformamide (50 ml) and thereto is added sodium hydride (concentration 50%) (1.50 g) at room temperature, and the mixture is stirred for 30 minutes. To the mixture is added 2-bromoethyl ethyl ether (4.00 g), and the mixture is stirred at 70°C for 10 hours. To the reaction mixture is added water (150 ml), and the mixture is extracted with ethyl acetate. The extract is washed with water, dried over anhydrous magnesium sulfate and then concentrated to give a brown oily substance (5.40 g). The brown oily substance is treated with fumaric acid (3.26 g) in hot ethanol. The crude crystals thus obtained are recrystallized from ethyl acetate-ethanol to give l-[2-(ethoxy)ethyl]-2-(4-methyl-l-piperazinyl)benzimidazole 3/2 fumarate (6.31 g) as colorless plates, melting point 167.5°-168.5°C. Elementary analysis for C22H30N4O7 Calcd. (%) C, 57.13 H, 6.54 N, 12.11 Found (%) C, 57.04 H, 6.44 N, 12.02. 

Prior to GC analysis, the fuel samples were stored in sealed containers at -20°C. The gas chromatograms of the neat jet fuel samples were used as the training set (see Table 9.1). The prediction set consisted of 25 gas chromatograms of weathered jet fuels (see Table 9.2). Eleven of the 25 weathered jet fuel samples were collected from sampling wells as a neat oily phase floating on the top of well water 7 of the 25 fuel samples were recovered fuels extracted from the soil near various fuel spills. The other seven fuel samples had been subjected to weathering in the laboratory. 

Stanethylium. When a strip of zinc is immeised in a solution of a salt of stanethylium (a solution of the chloride of stanethylium is the best for this purpose), it speedily becomes covered with dense oily drops of a yellow colour, which finally separate from the lower extremity of the zinc and accumulate at the bottom of the vessel the formation of the oily liquid is much favoured by the application of a gentle heat The yellow oil was separated from the supernatant liquid by means of a pipette, and well washed with successive large portions of cold water being then dried over chloride of calcium and submitted to analysis, it yielded the following results — ... 

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