Lithium tetraborate (CAS 12007-60-2)

Lithium tetraborate, with the chemical formula Li2B4O7 and CAS number 12007-60-2, is an inorganic compound that is particularly valued in analytical chemistry and materials science due to its unique chemical properties. This white, crystalline compound acts as a powerful flux in the fusion technique for preparing glassy or molten samples for spectroscopic analysis. In this context, lithium tetraborate is used to lower the melting points of substances, thereby facilitating the dissolution of oxidic materials into a homogenous molten mass. This is crucial for the accurate determination of the elemental composition of various materials using techniques such as X-ray fluorescence (XRF) and inductively coupled plasma (ICP) spectroscopy. The ability to create a uniform sample matrix without any mineralogical effects allows for high precision in these analytical methods. Additionally, lithium tetraborate finds applications in the synthesis of special glass types, where its presence influences the properties of the glass, such as increasing the chemical durability and lowering the viscosity. These characteristics are essential for producing glasses with specific optical and thermal properties. Moreover, its role in the geochemical analysis of rocks and minerals makes it an indispensable tool in geology research, contributing to the understanding of the Earth′s crust and mantle processes.