awhat do we have on 什么我们有在[translate] aTo use solvent extraction for metal separation, it is first necessary to have the metals dissolved in an aqueous solution. 为金属分离要使用溶剂萃取,它首先是必要的有在水溶液溶化的金属。[translate]...
AQUEOUS SOLVENT SOLUTION OF POLYIMIDE PRECURSOR AND ORIENTED LIQUID CRYSTAL FILMPROBLEM TO BE SOLVED: To provide an aqueous solvent solution of a polyimide precursor free from polyamic acid.KUMAGAI YOSHIHIRO熊谷 吉弘
1.An aqueous polyurethane dispersion, comprising:a prepolymer, which comprises:a) at least one polyether or polyester polyol, wherein said polyether or polyester polyol has a number average molecular weight of about 600 to about 3,500;b) a mixture of 4,4′- and 2,4′-methylene bis(phenyl...
For synthetic microgels, more likely to be utilized in a wide range of solvents, solvent penetration is probably more important than for biopolymer–based microgels in foods. Food-compatible microgels are almost always prepared in aqueous solution and at least one of the solvents at the fluid-flui...
A solution is said to be 33.3 mole percent acetic acid (molar mass = 60.05 g/mol-1) in water. What is the unionized molality of this solution? Density of solution = 1.7 g/mL. An aqueous acetic acid solution is 6.0835 molal and 8.9660 molar. What is the density of...
contacting an aqueous solution comprising a lipopeptide antibiotic, a divalent cation, and a pH above the isoelectric point of the lipopeptide antibiotic with an organic solvent, thereby extracting the lipopeptide antibiotic into the organic solvent, wherein the lipopeptide antibiotic is a derivative of...
(c) a functional component capable of salt formation in aqueous solution, and (d) optionally, a chain-extending agent.” The adhesive films from this composition have low recovery power and poor heat resistance in view of the unsymmetrical structure and steric hindrance of isocyanate groups on ...
This method relies on the same principle as water scrubbing; however, the absorption of CO2and H2S is not conducted in aqueous solution, but by organicsolvents, such as the mixtures of methanol and dimethyl ethers ofpolyethylene glycol(PEG). PEG liquids, which are widely used as organic solvent...
It has been established, that with the most varied of reagents ruthenium(lV) forms stable complexes even in acid aqueous solutions, which may prevent a precipitation of the hydroxide or losses through the adsorption of the radiocolloides and permit an extractive separation of micro ruthenium ...
and distilled. Fractional distillation then removes residual traces of hydroxy compounds. This method does not apply to esters of inorganic acids (e.g. dimethyl sulfate) which are more readily hydrolysed in aqueous solution when heat is generated in the neutralisation of the excess acid. In such ...