- 作者: 潘貫; 林瑞[木逢]; 吳玉麟; 陳英明
- 作者服務機構: Contribution from Department of Chemistry National Taiwan University
- 中文摘要: Pyrogallolsulfonephthalein and its complexes with zirconium and hafnium were spectrophotometrically studied in HClO/sub 4/ and NaClO/sub 4/ solutions of various pH's. An absorption maximum at 472mμ has been found for pyrogallolsulfonephthalein at pH 1.0 and 1.5. It shifts to 518 and 520mμ in the presence of zirconium at pH 1.0 and hafnium at pH 1.5, respectively. the mole ratios of both metals to the dye have been found to be 1:1, and the apparent instability constants of the complexes are estimated as 1.34×10¯5 for the former and 7.06×10¯5 for the latter.
- 英文摘要: --
- 中文關鍵字: --
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