Solute strength

SolubiHty of carbon dioxide in ethanolamines is affected by temperature, amine solution strength, and carbon dioxide partial pressure. Information on the performance of amines is available in the Hterature and from amine manufacturers. Values for the solubiHty of carbon dioxide and hydrogen sulfide mixtures in monoethanolamine and for the solubiHty of carbon dioxide in diethanolamine are given (36,37). SolubiHty of carbon dioxide in monoethanolamine is provided (38). The effects of catalysts have been studied to improve the activity of amines and provide absorption data for carbon dioxide in both mono- and diethanolamine solutions with and without sodium arsenite as a catalyst (39). Absorption kinetics over a range of contact times for carbon dioxide in monoethanolamine have also been investigated (40). 

DGA is preferred for cold climates and high (50-70wt%) solution strength for economy. By comparison, solution strength for MEA is 15-25 wt%, and for DEA, 25-35 wt%.- Provide good filtration for DGA because it has a greater affinity for heavy hydrocarbons than other amines. The feed gas must have at least 1% acid gas... 

DGA systems typically circulate a solution of 50-70% DGA by weight in water. At these solution strengths and a loading of up to 0.3 mole of acid gas per mole of DGA, corrosion in DGA systems is slightly less than in MEA systems, and the advantages of a DGA system are that the low vapor pressure decreases amine losses, and the high solution strength decreases circulation rates and heat required. 

For design, the following solution strengths and loadings are recommended to provide an effective system without an excess of corrosion ... 

The maximum solution strength for dry anionic polymers is 0.5 to 1.0% by weight. 

Reviews the drug therapy regimen, including the prescribed drug and solution strength, dosage, amount and type of diluent, if required, and frequency of administration. 

In order to probe the influence of Au and KOAc on the vinyl acetate synthesis chemistry, four different catalysts were synthesized. All of these catalysts were prepared in a manner exemplified in prior patent technology [Bissot, 1977], and each contained the same palladium loading in an egg-shell layer on the surface of a spherical silica support. The palladium content in the catalyst was easily controlled by adjusting the solution strength of palladium chloride (PdClj) added to the porous silica beads prior to its precipitation onto the support by reaction with sodium metasilicate (Na SiOj). The other two catalyst components (Au and KOAc) were either present or absent in order to complete the independent evaluation of their effect on the process chemistry, e.g., (1) Pd-i-Au-hKOAc, (2) Pd-i-KOAc, (3) Pd-hAu, and (4) Pd only. 

Clearly, the acid leached catalysts (Table 57) displayed much lower BET surface areas and lower activities in comparison with the caustic extracted samples, the commercial catalyst, and the precipitated experimental catalyst (Table 55). The authors suggest that use of a weaker acid solution strength (perhaps <5%) for... 

One particular example of solution strength has an important meaning in chemistry that of the dissolved hydrogen ion, which relates to the acidity or... 

The calculations involved in critical care include determination of solution strengths, flow rates in terms of drops per minute or hour, and flow rates in volume per unit time. Since the administration of medications requires dose adjustments under a clinical monitoring, it is very important to calculate a titration factor which is the amount of medication in units of weight per drop. Most of these calculations are presented in Chapter 10, but the present section will highlight the calculations which involve the titration factor. The titration factor will help the health care professional to rapidly determine the... 

Orai concentrate soiutions Roxicodone intensoi, OxyFAST, and Oxydose 20 mg/mL solution are highly concentrated solutions. Take care in prescribing and dispensing this solution strength. Fill dropper to the level of the prescribed dose (1 mL = 20 mg 0.75 mL = 15 mg 0.5 mL = 10 mg 0.25 mL = 5 mg). For ease of administration, add dose to approximately 30 mL (1 fluid oz) or more of juice or other liquid. May also be added to applesauce, pudding, or other semi-solid foods. The drug-food mixture should be used immediately and not stored for future use. 

Monitor Cleaning Solution Strength. Analytical checks of solution strengths should be made on a routine basis. The correction of solution strength by making small and... 

Development times are between 1 Vi and 6 minutes. The relationship between image color and solution strength is as follows ... 

Co Reduces rate of sulfur diffusion helps with sulfidation resistance improves solid solution strength improves solid solution resistance ... 

In the domestic situation, we tend to use the words strong and weak to describe the concentration of, say, a cup of tea but in the chemical situation, these terms refer to other properties of the solution, so we must use the qualitative terms concentrated and dilute to talk about solution strength. 

Equation 2.9 shows that units of activity and concentration are proportional in other words y can be regarded as a proportionality constant. These constants, which vary between 0 and 1, can be calculated experimentally or theoretically and are quite well known for some natural solutions. Having said this, measuring y in complex solutions like seawater has proved very difficult. Most importantly for our purposes, as solution strength approaches zero, y approaches 1. In other words, in very dilute solutions (e.g. rainwater), activity and concentration are effectively the same. 

Timber species can be grouped to take account of the fact that those having a high basic density and low green moisture content need to be immersed in stronger solutions in order to obtain the correct amount of preservative (wt/wt basis). Solution strengths vary from 15% to 45% of boric acid equivalent, but the more concentrated solutions can be achieved only by heating the solution above 50°C. 

You now have three options to plate the nickel (1) deposit the nickel on top of the copper, (2) ehange the pH and plate it on the anode, or (3) remove the copper and plate it on the cathode. The third option will be done. The reason is that if you don t get the solution strength just right for the next step, some of that copper can dissolve and ruin your nickel analysis. Place the wire gauze with the copper on it in a small beaker, add 10 or 15 mL of nitric acid, and clean off the gauze like you did before. 

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