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12079 Spectroflux 100A, Lithium metaborate

CAS Number

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Spectroflux 100A, Lithium metaborate


Chemical Properties

Melting point
Storage & Sensitivity
Hygroscopic. Ambient temperatures.
Soluble in water and ethanol.


A basic flux. Recommended for acidic samples. Often used in testing of ceramics and steel. Will not dissolve highly basic refractories. Samples must be fully oxidized. For use with AA and ICP instrumentationSpectroflux 100A Lithium metaborate is a basic flux used for fusing acidic oxides, silicas, sands, clays and spinel glasses.


Hygroscopic. Incompatible with strong oxidizing agents, acid anhydrides and alkali metals.

Literature References

Chemtob, S. M.; Nickerson, R. D.; Morris, R. V.; Agresti, D. G.; Catalano, J. G. Synthesis and structural characterization of ferrous trioctahedral smectites: Implications for clay mineral genesis and detectability on Mars. J. Geophys. Res. Planets 2015, 120 (6), 1119-1140.

Maxwell, S. L.; Hutchison, J. B.; McAlister, D. R. Rapid fusion method for the determination of refractory thorium and uranium isotopes in soil samples. J. Radioanal. Nucl. Chem. 2015, 305 (2), 631-641.

GHS Hazard and Precautionary Statements

Hazard Statements: H315-H319-H335

Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation.

Precautionary Statements: P261-P280a-P305+P351+P338-P304+P340-P405-P501a

Avoid breathing dust/fume/gas/mist/vapours/spray. Wear protective gloves and eye/face protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.

Other References

Harmonized Tariff Code


  • 12078

    Spectroflux 100, Lithium tetraborate
  • 12080

    Spectroflux 100B, Lithium metaborate & Lithium tetraborate, 80:20 w/w%
  • 12086

    Spectroflux 110, Lithium tetraborate & Lithium metaborate, 66.5:33.5 w/w%
  • 41951

    Spectroflux 100, low phosphorus, Lithium tetraborate, phosphorus <20ppm
  • 96558

    Spectroflux 1000, Lithium tetraborate, fused, 100-500 micron

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