Treated waters distilled water

Although Ni(OH)2 can be inserted into the bimessites by the pH titration at room temperature, the titration needs a relatively long time to reach the reaction equilibrium, and the amount of inserted Ni(OH)2 is very little. A hydrothermal method was used in the preparation of NMO. In the hydrothermal intercalation, NiBir (or NaBir) was firstly dispersed in a Ni(N03)2 solution, and a NaOH solution was then added in the NiBir-Ni(N03)2 system to prepare a Ni(OH)2-NiBir mixture. The mixture was hydrothermally treated in distilled water to intercalate free Ni(OH)2 into the NiBir. 

The of 50 Mrad cotton treated with distilled water,... 

NY66 specimens immersed in different solutions were used for GPC analysis. Before pretreatment for GPC measurement, EG present in the immersed sample must be removed, because it will react with TFAA to give substituted trifluoro ester of ethylene glycol (trifluoro-3-ol-propinoate). Hence, the immersed samples were first treated with distilled water by Sohxlet... 

Diethyl pyrocarbonate (DEPC) is a potent inhibitor of RNases see Note 1) and is used to treat all solutions except those containing Tris. Tris solutions should be made from a reserved stock of Tris crystals with DEPC-treated sterile distilled water in suitable containers and autoclaved before use. 

One area was treated with distilled water as control. The other with 0.5 ml sample of the Detergent. 

Fiber treated with distilled water contain 2 % Sodium Peroxide (H2O2) in water bath at temperature 45 °C, speed 40 rpm for 8 h... 

Dissolve I g. of pinacol (preparation, p. 148) in 20 ml. of water, and add 20 ml. of the 5% aqueous sodium periodate solution. After 15 minutes, distil the clear solution, collecting the first 5 ml. of distillate. Treat this distillate with 2,4-dinitro-phenylhydrazine solution A (p. 263). Acetone 2,4-dinitrophenyl-hydrazone rapidly separates from the solution when filtered off, washed with a small quantity of ethanol, and dried, it has m.p. 126-127°, and after recrystallisation from ethanol it has m.p. 128°. 

Dlmathylamlnotnethyl)-2-methyi-6-hepiena-2 ol (2). 2-Methyl-5-(dimethylcarbinol) N,N-dimathylpiperldinium iodide 1 (1.90 g, 10 mmol) was dissolved in distilled water and treated with freshly prepared AgjO. The mixture was filtered and concentrated under vacuum to a syrup The residue was heated at about 150°C and 0.3 mm and distilled to afford 0.65 g (75%) of 2, bp 50 C (0 5 mm). 

The viscous reaction mixture is then poured into 1.5 liters of ice water and agitated to form a uniform solution. The solution is treated with activated carbon and filtered. Thereafter, 80% acetic acid is added until the filtered solution remains acidic to litmus. The precipitate formed is filtered and washed thoroughly with distilled water. The product is air-dried at a temperature of 95° to 100°C for 48 hours to yield 133 grams of 5-allyl-5-(1-methylbutyl)-2-thiobarbituric acid having a melting point of 132° to 133°C and assaying at 99.5% pure, from U.S. Patent 2,876,225. 

The hardness test sometimes is performed on the mud as well as the mud filtrate. The mud hardness indicates the amount of calcium suspended in the mud as well as the calcium in solution. This test usually is made on gypsum-treated muds to indicate the amount of excess CaSO present in suspension. To perform the hardness test on mud, a small sample of mud is first diluted to 50 times its original volume with distilled water so that any undissolved calcium or magnesium compounds can go into solution. The mixture then is filtered through hardened filter paper to obtain a clear filtrate. The total hardness of this filtrate then is obtained using the same procedure used for the filtrate from the low-temperature low-pressure API filter press apparatus. 

The acid, without drying, is suspended in about 200 cc. of distilled water and with vigorous stirring, cautiously (Note 3) treated with 25 per cent sodium hydroxide solution until dissolved and the solution reacts neutral to litmus. The solution is then filtered through folded filter paper which should be free from soluble calcium salts, otherwise the filtrate will remain clouded by a suspension of the calcium salt. The clear, faintly yellow or colorless filtrate is then vigorously stirred and treated with 1.5 volumes of 95 per cent alcohol. Crystallization is induced by rubbing with a rod and then an additional volume of alcohol is added. The mixture should be allowed to cool to about 200 and stand for at least two hours to complete the precipitation of the salt, which is then filtered by suction and washed thoroughly with 85 per cent alcohol. The salt is then air-dried. The yield is 73-77 g. (38-40 per cent of the theoretical amount). 

B. Duplication method. This is usually applied as the so-called colorimetric titration in which a known volume (x mL) of the test solution is treated in a Nessler cylinder with a measured volume (y mL) of appropriate reagent so that a colour is developed. Distilled water (x mL) is placed in a second Nessler cylinder together with y mL of reagent. A standard solution of the substance under test is now added to the second cylinder from a microburette until the colour developed matches that in the first tube the concentration of the test solution can then be calculated. The standard solution should be of such concentration that it amounts to no more than 2 per cent of the final solution. This method is only approximate but has the merit that only the simplest apparatus is required it will not be discussed further. 

A dibenzoxazepinonc 10 was heated under reflux for 5 h with 8 times its weight of POCl3 and one third of its weight of, V ty-dimethylaniline. The resulting solution was evaporated in vacuo and the last traces of POCl3 were removed by distillation with toluene. The residue was treated with ice-water and Et,0 was added. The ethereal extract was washed with dil HC1, dried and evaporated and the residue was recrystallized (Et20/petroleum ether). 

A mixture of a 4-azidopyridine (0.9-1.0 g), 28% NaOMe/MeOH (10 mL. large excess), MeOH (65 mL) and dioxane (75 mL) was irradiated under N2 with a 400-W high-pressure Hg lamp equipped with a Pyrex filter, the apparatus being internally cooled with running water. When TLC showed that all starting material had been consumed (3 4 h), the solvents were distilled off under reduced pressure and the residue was treated with ice-water (30-50 mL). The aqueous mixture was extracted with hexane or benzene and the dried extract was evaporated in vacuo, leaving the product as an oil, which was purified by chromatography (Scphadex or silica gel, benzene). 

Fig. 5.9a-i Air-water two-phase flow patterns in a 100 pm i.d. clean quartz tube treated with ultrasonic vibration in distilled water, in ethanol and in dilute hydrochloride acid solution. Reprinted from Serizawa et al. (2002) with permission... 

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