单词 | pertechnic |
释义 | pertechnicadj. Chemistry. rare. = pertechnetic adj. ΚΠ 1952 Jrnl. Amer. Chem. Soc. 74 557/1 It appears..that the dark red crystals formed on evaporating aqueous solutions of Tc2O7 correspond to Tc2O7.H2O, or to anhydrous pertechnic acid, HTcO4. This is a new entry (OED Third Edition, December 2005; most recently modified version published online March 2022). < |
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