汉译英（化学）饱和容量法 称取4
Saturated allows the mensuration name to take the 40。0mg resin, In T =298K, sigma [ Cr (VI) ] = 0。 24 mg □under mL-1 condition, Obtains the resin according to the adsorption equilibrium experiment to the chromium ion static saturated adsorption capacity is 235mg □g-1, namely 4。 52 mmol □g-1 □R, ...全部
Saturated allows the mensuration name to take the 40。0mg resin, In T =298K, sigma [ Cr (VI) ] = 0。
24 mg □under mL-1 condition, Obtains the resin according to the adsorption equilibrium experiment to the chromium ion static saturated adsorption capacity is 235mg □g-1, namely 4。
52 mmol □g-1 □R, but the resin function base content is 4。71mmol □g -1 □R, the resin function base and Cr (VI) a mole of ratio is 4。
71: 4。52, approaches 1: 1。
3。6。2 and so on the mole of series law accurate name takes 7 different quality the resins, Respectively joins the commensurability chromium ion standard solution, in the maintenance resin and the liquid phase the chromium ion always a mole of number is not 187 mu mol, Transforms two mole of ratios, Take adsorptive capacity Q (□mol) as a y-coordinate, changes continuously mole [ Cr (VI) ]/[ Cr (VI) ] + [ R ] for the x-coordinate mapping (in the formula each item of unit for mu mol), see Figure 7 to show, In the chart two points of intersection of tangents quarters correspondence mole of score is 0。
48 approximately, namely resin function base and Cr (VI) the mole compared to is 1: 0。92, approaches 1: 1, with saturated allows the mensuration result to be consistent。
In order to further discusses the resin and the chromium coordinate becomes the key situation,Will reach the saturated resin to the chromium adsorption and has not attracted the chromium the resin to pass through the vacuum drying,Absorbs the infrared light spectrogram separately; Chart 8 after indicated the adsorption chromium (VI), the resin has transferred to 949cm-1 place originally in the 942cm-1 place absorption peak, this is because the resin and Cr2O72- carry on the chela to gather, therefore appears Cr in 949cm-1 □the O key expansion and contraction vibration peak, at the same time the resin vanishes in 858cm-1 and the 810cm-1 place absorption peak, but appeared the new peak in 766。
The infrared spectrum proved that, On the XSD-296 resin function base nitrogen atom and the chromium (VI) affected mutually, has formed the coordination bond compound。
The name takes 40。0mg resin certain, in sigma [ Cr (VI) ] =0。20 mg □mL-1, under 25 ℃ conditions vibrates to the balance, obtains the resin adsorptive capacity, separates the aqueous phase, after washes the resin air dries, selects the different density separately the hydrochloric acid, the sodium hydroxide, the ammonium chloride - ammonia water, the ammonium chloride - hydrochloric acid, the sodium chloride - caustic soda solution achievement elutes the medicinal preparation to carry on elutes the experiment, the result when makes the strippant with 5% sodium chloride -5% sodium hydroxide or 5% ammonium chloride -5% ammonia water solution, the desorption rate approaches 100%, also does not have the destruction to the resin, May duplicate after the desorption resin uses。
软件翻译的，估计有错。
拜托不要搞这种东东。收起
