The influence of major technological factors on electrodeposition-of amorphous Ni-P alloys in phosphorous acid-Nickel salt type bath were strdied by means of electrochemical test,x-ray analysis and SEM.
STERILIZATION AND INHIBITION OF QUATERNARY PHOSPHONIUM SALT TYPE OF INHIBITORS FOR SULFATE-REDUCING BACTERIA INDUCING MICROBIOLOGICALLY INFLUENCED CORROSION OF CARBON STEEL
In this paper, a novel cational water treatment agent, pyridine quaternary ammonium salt-type cationic polyacrylamidefCationic P(AM-co-VP),simplified as CPAV],which can be used as a muti-function wasterwater agent possessing flocculation, corrosion inhibition and sterilization function, has been synthesized.
In this paper the influences of polyquarternary ammonium salt-type clay stabilizers on the wettable and charged properties of clay mineral surface are examined in detail and the relation of the change ofthese properties with the performance of the clay stabilizers is discussed.
For the noble metal catalyst, the oxidation reaction was carried under 50 - 90℃ for 2 - 6 h adding Pb, Bi as cocatalyst, using active carbon as carrier and the result was salt - type product.
The results show that the developed mixed salts type covering agent can be used to produce in situ TiC P/Fe composites under air condition, in which the TiC particles exhibit finer size and homogeneous distribution in the matrix structure, resulting in the composites, especially the quenched composites, to have higher properties.
结果表明 :采用所开发的混合盐型覆盖剂能在大气条件下制备出原位 Ti CP/Fe复合材料 ,且原位合成的 Ti C颗粒尺寸细小、分布均匀 ,从而使制备的复合材料特别是经淬火处理后的复合材料具有较高的力学性能。
A series of titanic-silica mesoporous materials have been synthesized by using the Gemini surfactant [C16H33(CH3)2N+(CH2)6N+(CH3)2C16H33]·2Br-(GEM16-6-16) as a template.
The absorption spectra of [Me3NC2H4OH]Zn2Cl5 (R-Zn2Cl5) in aqueous solutions were studied by time-resolved laser photolysis, and the mechanism of monophotonic ionization was suggested. The oxi- dizing radical SO?
The dependency of the value of this concentration on the salt type was the same as the empirical Schulze Hardy law for the critical coagulation concentration of isotropic colloidal suspensions.
This finding further confirms conclusions of our previous studies on adsorption mechanism of anionic surfactants on the surface of insoluble salt-type minerals [10].
Gallstones from 468 cases were classified according to their infrared spectra. Of these specimens, 249, 165 and 25 cases were divided into pigment type, cholesterol type and pigment-cholesterol mixed type respectively; and cases within these three types accounted for 93.8%. In addition, 20, 7 and 2 cases were classified with carbonate type, phosphate type and fatty acid salt type respectixely. The result of quantitative, qualitative, atomic spectra and far-infrared spectra analysis suggested that infrared s...
Five renal, two endocrinic and one salt models of experimental hypertensive rat were described. The technique and other particularities were discussed in detail. In 7 of the 8 models, plasma renin activity was determined.
Four cases of defects in 21-hydroxylation of congenital hyperplasia have been reported. Three of them were of the simple virilizing type and 1 of the salt-losing and virilizing type. Etiology, diagnosis and treatment of the disease have been discussed. Special emphasis was put on differential diagnosis.