Sodium Borate (Borax) powder.

9,14 18,27 

  • Synonyms: Borax, di-Sodium tetraborate
  • Formula: Na2B4O7 · 10H2O
  • FW or PM: 381.37
  • CAS No. : 1303-96-4
  • Used for manufacturing dyes for semi-thin sections.
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SKU: GP17 Category:


Element used to stain semi-thin sections using Toluidine Blue or Methylene Blue, and others.

Dissolve sodium borate in water, then add Toluidine Blue powder and stir until dissolved. Filter the staining solution (use a syringe filter) before use.
Note: Borax renders the stain alkaline to aid penetration into epoxy semi-thin sections.


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