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lithium metaborate / di-lithium tetraborate (22:12)% for XRF (X-ray fluorescence)

Supplier: MilliporeSigma

Spectromelt is based on lithium borates for fluxing digestion as granulate or as fused material used for X-ray fluorescence analysis (XRF).
The fused particles are spherical, have a small particle size distribution and a higher bulk density.
The material is easy to handle and has a low loss on ignition.

  • Extensive specification of trace impurities
  • Batch-to-batch consistency
  • High purity materials

Specification Test Results
Chloride (Cl) ≤ 50 ppm
Phosphate (PO₄) ≤ 20 ppm
Silicate (SiO₂) ≤ 100 ppm
Sulphate (SO₄) ≤ 50 ppm
Ag (Silver) ≤ 5 ppm
Al (Aluminium) ≤ 10 ppm
Ba (Barium) ≤ 5 ppm
Ca (Calcium) ≤ 20 ppm
Cd (Cadmium) ≤ 5 ppm
Co (Cobalt) ≤ 5 ppm
Cr (Chromium) ≤ 5 ppm
Cu (Copper) ≤ 5 ppm
Fe (Iron) ≤ 20 ppm
Ga (Gallium) ≤ 5 ppm
K (Potassium) ≤ 10 ppm
Mg (Magnesium) ≤ 5 ppm
Mn (Manganese) ≤ 5 ppm
Na (Sodium) ≤ 20 ppm
Ni (Nickel) ≤ 5 ppm
Pb (Lead) ≤ 5 ppm
Sr (Strontium) ≤ 5 ppm
Zn (Zinc) ≤ 10 ppm
Loss on ignition (900 °C) ≤ 0.5 %
Bulk density about 130



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Size Packaging Supplier No. VWR Catalog Number Unit Price Quantity
1 kg Plastic Bottle 1.24001.1000 EM1.24001.1000 Case of 12 (1kg) Retrieving Restricted
Each (1kg) Retrieving Restricted
restricted In order to process your orders without delay, we request that you provide the required business documentation to purchase this product.

To order chemicals, medical devices, or other restricted products please provide identification that includes your business name and shipping address via email or fax 484.881.5997 referencing your VWR account number . Acceptable forms of identification are:

  • State issued document with your organization's Federal Tax ID Number
  • State issued document with your organization's Resale Tax ID Number
  • City or County issued Business License
  • State Department of Health Services License
  • Any other ID issued by the State that includes the business name and address

* Please note if your account is within the State of California two of these pieces of identification will be required.
VWR will not lift restrictions for residential shipping addresses.

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