Borax Powder UK
Our borax powder is technical grade sodium tetraborate decahydrate at 99.9% assay, supplied in 900g and 3kg packs.
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Borax Powder
Borax Decahydrate Powder 99.9% – UK Trade Pack (900g / 3kg)
Price range: £17.99 through £31.99 Select options This product has multiple variants. The options may be chosen on the product page
Borax powder grades explained
| Grade | Typical use | Stocked? |
|---|---|---|
| Technical (99.9%) | Flux, glazes, timber, cleaning, lab buffers | Yes |
| Laboratory / reagent | Analytical standards | On request |
| Anhydrous / pentahydrate | Glass and fibre manufacture | No |
Which pack size?
The 900g pack suits a jeweller’s bench or small studio. The 3kg pack works out cheaper per kilo for potteries, restorers and labs. Trade buyers needing 25kg sacks or regular supply can contact us.
Borax powder vs boric acid
Both are boron compounds, but they are not interchangeable. Borax is a sodium salt and is alkaline in water. Boric acid is weakly acidic. For soldering flux and alkaline buffers you want borax.