High-purity (99,98+%) pre-fused flux to prepare samples for XRF or ICP analysis. Composition : 99,0 % Lithium Tetraborate and 1,0% Lithium Bromide. 1 kg bottle. Properties: spherical vitreous beads, anhydrous and non-hygroscopic, homogeneous particles, no dust, controlled granulometry, high fluidity.