Ethanolamine solutions

A packed column is used to absorb S02 from flue gas using an ethanolamine solution. The column is 4 ft in diameter, has a packed height of 20 ft, and is... 

Block unreacted aldehyde sites by addition of 50 pi of 1M ethanolamine, pH 9.6, per ml of conjugation solution. Approximately a 1M ethanolamine solution may be prepared... 

Block unreacted aldehyde sites by addition of 50 pi of 1M ethanolamine, pH 9.6, per ml of conjugation solution. Approximately a 1M ethanolamine solution may be prepared by addition of 300 pi ethanolamine to 5 ml of deionized water. Adjust the pH of the ethanolamine solution by addition of concentrated HC1, while keeping the solution cool on ice. 

Immerse the slide in 1 M ethanolamine solution, 3% BSA (pH 8.5) for blocking nonspotted surface of Au-coated slide and masking the nonreacted succinimide esters at 25°C for 30 min. 

Add 1 mL of 2M ethanolamine solution, and mix at 4°C for a further 1 h—this blocks unreacted active groups... 

Mix the gel immediately with ethanolamine solution to block remaining active groups on the gel and incubate for 2 h at room temperature with gentle inversion. 

Remove the ethanolamine solution by careful filtration on the glass sinter. 

Gallic acid functions as an effective sihcon complexing agent in aqueous ethanolamine solutions. In its absence the etch rate is zero. Etch rate increases with water content. The additions of pyrazines, pyridazines, and triazoles show various catalytic effects on the etching process. The catalysts that lead to faster oxidation result in faster etch rates, and the difference among the catalysts is due to a steric effect. Oxidative catalysts tend to influence the etching selectivity of the major crystal... 

The reagent has been used for the cleavage of picric acid salts of amines. The finely divided yellow picrate is shaken with a mixture of ether and a concentrated aqueous solution of ethanolamine, and the ether solution is drawn off and extracted repeatedly with ethanolamine solution until it is no longer colored. Hiinig and Baron studied the velocity of splitting of quaternary ammonium salts on refluxing with ethanolamine. ... 

Sedghi, S.M., Brisson, J., Rodrigue, D., Iliuta, M.C. 2011. Chemical alteration of LDPE hollow fibers exposed to mono-ethanolamine solutions used as absorbent for COj capture process. Sep. Purif. Technol. 80 338-344. 

Freezing Point vs. Concentration for Aqueous Ethanolamine Solutions... 

Measure 50 ml of the water sample into each of two 250-ml beakers (if concentration < 10 mg/1 Ca2+ use correspondingly more evaporate to 50 ml) and acidify with perchloric acid (2) (pH 2 - 3). Boil until the carbon dioxide is expelled, and when cool treat with 10 ml of masking solution. Leave the samples to stand for 10 minutes, then add 1 ml of triethanolamine solution and adjust to pH 10.5 with ethanolamine solution (thereby prevent-... 

Where the concentrated sour gas recovered during the regeneration cycle cannot be used as fuel, or otherwise disposed of, it is sometimes further treated by absorption in ethanolamine solution. 

The reaction scheme (14.3.4.B-a)-(14.3.4.B-b) corresponds to that dealt with above in the general description of the design and simulation of plate columns. An estimate of the Ha number classifies them as very fast, but not instantaneous. In such a case the reactions take place entirely in the film, so that Xco2.fo written Xaji in what follows, is set zero in (14.3.4.A-Q and (14.3.4.A-g). The viscosity of the solution and the diffusivity of CO2 in the solution were calculated on the basis of experimental data of Thomas and Furzer [1962] and Shridar and Potter [1977]. Densities of ethanolamine solution were measured by Tseng and Thompson [1964] and Riddick and Bunger [1970]. 

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