The blend
Tetrad brings together four contrasting elements: boron, a light metalloid made in the stars; tungsten, the metal with the highest melting point of all; zinc, the bright metal used to galvanise steel; and niobium, a metal prized in superconducting magnets.
Specifications
- CompositionBoron, tungsten, zinc and niobium
- Purity99.99% pure source metals
- Concentration30–50 ppm
- Particle sizeAbout 5–30 nm
- StabiliserCitrate
- Made byInfrared fibre-laser ablation in distilled water
- AppearanceClear
- CheckedEvery bottle is checked with a laser beam before dispatch
- Bottle500 ml, reusable laboratory-grade glass reagent bottle
- StorageKeep away from direct light and heat. No refrigeration needed.
Composition and specifications only. XSKOOL makes no health or medical claims for this product.




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