Aqueous hydrochloric acid

The hollow fiber was dipped into dihexyl ether for 5 sec and excess adhering solvent was washed away by ultrasonification in a water bath. Then, 25 fiL of lOmM hydrochloric acid (aqueous, acceptor phase) was injected into the lumen of the hollow fiber with a microsyringe. This activated fiber was placed in the vial containing the donor solution and the vial vibrated at 1500 rpm for 45 min. The entire acceptor solution was flushed into a 200-fJ.L micro insert and subjected to capillary electrophoresis or HPLC detection. For 2 mL extractions, 250 //I. of plasma sample treated with... 

To test the validity of the extended Pitzer equation, correlations of vapor-liquid equilibrium data were carried out for three systems. Since the extended Pitzer equation reduces to the Pitzer equation for aqueous strong electrolyte systems, and is consistent with the Setschenow equation for molecular non-electrolytes in aqueous electrolyte systems, the main interest here is aqueous systems with weak electrolytes or partially dissociated electrolytes. The three systems considered are the hydrochloric acid aqueous solution at 298.15°K and concentrations up to 18 molal the NH3-CO2 aqueous solution at 293.15°K and the K2CO3-CO2 aqueous solution of the Hot Carbonate Process. In each case, the chemical equilibrium between all species has been taken into account directly as liquid phase constraints. Significant parameters in the model for each system were identified by a preliminary order of magnitude analysis and adjusted in the vapor-liquid equilibrium data correlation. Detailed discusions and values of physical constants, such as Henry s constants and chemical equilibrium constants, are given in Chen et al. (11). 

Synonyms HCl hydrochloric acid, aqueous muriatic acid... 

Anhydrous Hydrogen Chloride is a colorless gas, which on liquefaction gives colorless (or si yellowish) fuming, strongly corrosive liquid mw 36.47, sp gr of gas at 0° 1.268 (Air) fr p -114.3° bp -111° (Lange) bp -84.8° sol in w, ale, eth benz. It can be prepd by furnace combstn pf hydrogen, methane or water-gas, in chlorine or by solvent extraction from hydrochloric acid (aqueous HC1). 

Bismuth trichloride also unites with quinoline and pyridine. Quino-lino-bismuth chloride, [Bi(C9H7N)]Cl3, is obtained as a white crystalline mass on mixing the chloride with the base. This derivative is only slowly decomposed by water and is not deliquescent.3 Bismuth chloride and pyridine form a white compound of composition BiCl3.l-5(CsH5N) or 2BiCl3.3(C5H5N) on adding pyridine to an ethereal solution of bismuth chloride,4 or it may be formed from an acetone solution of the chloride and excess of pyridine.3 It is a white crystalline powder, fairly stable towards water, and only attacked slowly by hydrochloric acid. Aqueous sodium hydroxide quickly decomposes the additive compound. 

C for 2 hours. The mixture was then poured into ice and water and ethyl acetate added. The organic portion separated and was washed sequentially with 1M hydrochloric acid, aqueous Na2CC>3, and water. The solution was dried using MgS04, concentrated, and 148.56 g of product isolated. 

N hydrochloric acid, aqueous 10% sodium hydroxide, and water. The organic layer is dried over anhydrous magnesium sulfate, filtered, and the solvent is removed by rotary evaporation. Short path distillation of the crude product yields methyl 6-oxohexanoate, (7.0-7.8 g, 65-72%),bp 83-86 C/1.5 mm (Note 13). 

Saturated aqueous potassium ferricyanide solution + 6 N hydrochloric acid Aqueous ammonium cobalt rhodanide solution + 6 N hydrochloric acid Yellow precipitate Blue precipitate... 

Cyclopropyl trialkylsilyl ethers are readily converted to the corresponding cyclopropanols, in most cases in very good yield. A range of reaction conditions have been utilized dry methanol, methanol and hydrochloric acid, aqueous sodium hydroxide, or potassium fluoride, hydrochloric acid in diethyl ether or tetrahydrofuran, and tetrabutylam-monium fluoride in tetrahydrofuran ammonium chloride has also been used. Some compounds are sensitive to the reaction conditions. Thus, (l/ , 3S, 75 )-3-(/( r/-butyldimethyl-siloxy)tricyclo[5.4.0.0 ]undecane (6) reacted with aqueous hydrochloric acid in diethyl ether without strictly excluding oxygen to give (l/ , 65, 105 )-ll,12-dioxatricyclo[8.2.1.0 ]tri-decan-10-ol (7) in variable yield in addition to (17 , 65, 105 )-l-methylbicyclo[4.4.0]undecan-2-one. ... 

When chlorine dissolves in water, it forms chlorine water. Only a portion of the chlorine remains intact in this solution, and the remainder converts to hypochlorous acid (aqueous HOCl) and hydrochloric acid (aqueous HCl). It is this formation of acid that enhances the corrosiveness of moist chlorine gas. By way of contrast, fluorine reacts with water to form HE and O2. 

The mixture was poured into dilute hydrochloric acid aqueous solution (240 mL), extracted with ethyl acetate (4 x 30 mL), washed over saturated aqueous ammonium chloride solution (50 mL), dried over anhydrous magnesium sulfate, and concentrated at low pressure. 

Prepare a trypsin stock solution by dissolving 20 mg of the enzyme in 1 mM hydrochloric acid aqueous solution to a 1-mg/ml final concentration. 

After dilution with 225 ml of dichloromethane the flask is cooled to 0 C and 16 ml of triethylamine (0.113 mol) and 21.24 ml of acetic anhydride (0.225 mol) are added via syringe (Note 12), and the solution is stirred under a nitrogen atmosphere for 15 min. The ice bath is removed and stirring is continued for 4 hr. The solution is washed with 150-mL portions of aqueous 0.1 N hydrochloric acid, aqueous 10% sodium hydroxide, and water. The organic layer is dried over anhydrous magnesium sulfate, filtered, and the solvent Is removed by rotary evaporation. Short path distillation of the crude product yields methyl 6-oxohexanoate, (7.0-7.8 g, 65-72%),bp 33-86"C/1.5 mm (Note 13). 

Dilute acids and alkalis concentrated alkalis and concentrated hydrochloric acid aqueous solutions of salts and oxidizing agents, fats, oils and aliphatic hydrocarbons (for example, white spirit and paraffin), dilute alcohols and detergents. 

Methyl ethyl ketone Heptane, cyclohexane, dibutylphthalate, aqueous hydrochloric acid, aqueous sodium hydroxide... 

ALKYL CHLORIDE (TRACE), HYDROCHLORIC ACID (AQUEOUS) Unknown R.T. X ... 

Fig. 2 Cyclic voltammogram and the corresponding structure of polyaniline with respect to the reference silver electrode in 1M/I hydrochloric acid aqueous solution.

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