caa a22 4500 467925453 CHVBK 20180406152928.0 cr unu---uuuuu 170328e20060101xx s 000 0 eng 10.1134/S0020168506010080 doi (NATIONALLICENCE)springer-10.1134/S0020168506010080 Determination of the modified effect of nano-SiO2 by titration in nonaqueous phase [Elektronische Daten] [Lei Zhang, Danfeng Zhang, Yanli Jin, Peng Zhang, Shuliang Zang] The dispersion of nanosilica that was modified and original in organic solvents could be judged directly by using methyl red as the indicator, and the principle of color development was also discussed. A method has been developed for the determination of the acidity of solid surfaces, which consists of titration of the solid suspended in benzene with n-butyl amine, using neutral red as the indicator. Basic indicator forms a red color on acidic solids, and the end-point of the titration is the disappearance of the red color. Pleiades Publishing, Inc., 2006 Zhang Lei Department of Chemistry, Liaoning University, 110036, Shenyang, People's Republic of China aut Zhang Danfeng Heilongjiang August First Land Reclamation University, People's Republic of China aut Jin Yanli Department of Chemistry, Liaoning University, 110036, Shenyang, People's Republic of China aut Zhang Peng Department of Chemistry, Liaoning University, 110036, Shenyang, People's Republic of China aut Zang Shuliang Department of Chemistry, Liaoning University, 110036, Shenyang, People's Republic of China aut Inorganic Materials Nauka/Interperiodica 42/1(2006-01-01), 35-38 0020-1685 42:1<35 2006 42 10789 https://doi.org/10.1134/S0020168506010080 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1134/S0020168506010080 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Zhang Lei Department of Chemistry, Liaoning University, 110036, Shenyang, People's Republic of China aut NATIONALLICENCE 700 1- Zhang Danfeng Heilongjiang August First Land Reclamation University, People's Republic of China aut NATIONALLICENCE 700 1- Jin Yanli Department of Chemistry, Liaoning University, 110036, Shenyang, People's Republic of China aut NATIONALLICENCE 700 1- Zhang Peng Department of Chemistry, Liaoning University, 110036, Shenyang, People's Republic of China aut NATIONALLICENCE 700 1- Zang Shuliang Department of Chemistry, Liaoning University, 110036, Shenyang, People's Republic of China aut NATIONALLICENCE 773 0- Inorganic Materials Nauka/Interperiodica 42/1(2006-01-01), 35-38 0020-1685 42:1<35 2006 42 10789 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer