Used as a flux in sample preparation for X-ray fluorescence (XRF) and inductively coupled plasma (ICP) analysis, enabling complete dissolution of refractory materials like ceramics, minerals, and ores. Facilitates the formation of homogeneous glass beads or discs, improving analytical accuracy. Also employed in metallurgy for slag conditioning and as a component in specialty glasses and ceramics due to its ability to lower melting temperatures and enhance chemical durability. Finds use in electroplating baths and as a buffer in certain electrochemical applications.