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The Preparation of TlBF4

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Francisco J. Arnáiz

Universidad de Burgos, Lab. de Química Inorgánica, 09001 Burgos, Spain

J. Chem. Educ., 1997, 74 (11), p 1332

DOI: 10.1021/ed074p1332

Publication Date (Web): November 1, 1997

Section:

History, Education, and Documentation

Abstract

Thallium tetrafluoroborate is a useful reagent in chemistry labs for preparing tetrafluoroborate salts via abstraction of coordinated halide ions. Although many of these species can be isolated as perchlorates by reacting the appropriate parent halocompound with silver perchlorate, the explosive nature of many perchlorate salts prompted a search for substitutes. Tl[BF₄], a good alternative to AgClO₄, can be prepared by treating the metal or carbonate with aqueous tetrafluoroboric acid. However, the procedure outlined here, based on the reaction of thallium with hydrogen peroxide and tetrafluoroboric acid, is specially appropriate for teaching purposes.

Keywords (Audience):

Upper-Division Undergraduate

Keywords (Domain):

Inorganic Chemistry

Keywords (Feature):

The Microscale Laboratory

Keywords (Pedagogy):

Hands-On Learning / Manipulatives

Keywords (Subject):

Microscale Lab

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Received: August 03, 2009

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Lab-Expt

The Preparation of TlBF4

Abstract

Keywords (Audience):

Keywords (Domain):

Keywords (Feature):

Keywords (Pedagogy):

Keywords (Subject):

Tools

SciFinder Links

History

Recommend & Share

Related Content

Determining the Lead Content of Paint Chips: An Introduction to AAS

Microscale Synthesis and Electronic Absorption Spectroscopy of Tetraphenylporphyrin H2(TPP) and Metalloporphyrins ZnII(TPP) and NiII(TPP)

The Full Story of the Electron Configurations of the Transition Elements

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