All Photos(1)




Spectromelt® A 14

51% di-lithium tetraborate/ 27% lanthane(III) oxide/ 12% lithium metaborate/ 10% lithium fluoride

Sign Into View Organizational & Contract Pricing

Select a Size

Quality Level

bulk density

1000‑1200 kg/m3

storage temp.


Analysis Note

Chloride (Cl): ≤ 50 ppm
Phosphate (PO₄): ≤ 20 ppm
Silicate (SiO₂): ≤ 300 ppm
Sulfate (SO₄): ≤ 50 ppm
Ag (Silver): ≤ 5 ppm
Al (Aluminium): ≤ 50 ppm
Ba (Barium): ≤ 5 ppm
Ca (Calcium): ≤ 50 ppm
Cd (Cadmium): ≤ 5 ppm
Co (Cobalt): ≤ 5 ppm
Cr (Chromium): ≤ 5 ppm
Cu (Copper): ≤ 5 ppm
Fe (Iron): ≤ 10 ppm
K (Potassium): ≤ 100 ppm
Mg (Magnesium): ≤ 10 ppm
Mn (Manganese): ≤ 5 ppm
Na (Sodium): ≤ 50 ppm
Ni (Nickel): ≤ 5 ppm
Pb (Lead): ≤ 20 ppm
Sr (Strontium): ≤ 5 ppm
Zn (Zinc): ≤ 10 ppm
Loss on ignition (800 °C): ≤ 1.0 %
Bulk density: about 110

Legal Information

SPECTROMELT is a registered trademark of Merck KGaA, Darmstadt, Germany

Signal Word


Hazard Statements

Hazard Classifications

Acute Tox. 4 Oral - Eye Dam. 1 - Repr. 2 - Skin Irrit. 2

Storage Class Code

13 - Non Combustible Solids



Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Documents related to the products that you have purchased in the past have been gathered in the Document Library for your convenience.

Visit the Document Library

Difficulty Finding Your Product Or Lot/Batch Number?

Product numbers are combined with Pack Sizes/Quantity when displayed on the website (example: T1503-25G). Please make sure you enter ONLY the product number in the Product Number field (example: T1503).


Product Number
Pack Size/Quantity

Additional examples:





enter as 1.000309185)

Having trouble? Feel free to contact Technical Service for assistance.

Lot and Batch Numbers can be found on a product's label following the words 'Lot' or 'Batch'.

Aldrich Products

  • For a lot number such as TO09019TO, enter it as 09019TO (without the first two letters 'TO').

  • For a lot number with a filling-code such as 05427ES-021, enter it as 05427ES (without the filling-code '-021').

  • For a lot number with a filling-code such as STBB0728K9, enter it as STBB0728 without the filling-code 'K9'.

Not Finding What You Are Looking For?

In some cases, a COA may not be available online. If your search was unable to find the COA you can request one.

Request COA

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service