SUPPRESSION OF BORON VOLATILIZATION FROM A HYDROFLUORIC-ACID SOLUTION USING A BORON-MANNITOL COMPLEX

被引：111

作者：

ISHIKAWA, T

NAKAMURA, E

机构：

[1] Institute for Study of the Earth’s Interior, Okayama University, Misasa

来源：

ANALYTICAL CHEMISTRY | 1990年 / 62卷 / 23期

关键词：

D O I：

10.1021/ac00222a017

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Volatilization and mass fractionation of boron during evaporation of the hydrofluoric and hydrochloric acid solutions were investigated with varying mannitol/boron ratios. The degree of volatilization and mass fractionation decreases with increasing mannitol/boron mole ratio, and the boron volatilization is completely suppressed when the ratio is more than unity. These results indicate that the final stable compound is an equimolar complex of boron and mannitol. The formation of this complex in the acid solutions allows the use of hydrofluoric and hydrochloric acids for the dissolution of silicate rock samples and for the subsequent chemical separation of boron from the samples adopting anion-exchange chromatography in F− form. © 1990, American Chemical Society. All rights reserved.

引用

页码：2612 / 2616

页数：5

共 18 条

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[2]

BARBIER Y, 1968, B SOC CHIM FR, V12, P5072

[3]

CATANZARO EJ, 1970, NBS26017 SPEC PUBL

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