Free UK delivery on every order | Ships from the EU in 3–7 working days
Na₂B₄O₇·10H₂O | 99.9% assay
Genuine 99.9% sodium tetraborate for jewellers, potters, restorers and labs. For laundry and cleaning at home, a household borax substitute anyone can buy.
Borax crystallises in the monoclinic system: colourless prisms that turn to a fine white powder when milled.
Pick by what you are using it for. Both come with free delivery to any UK postcode.
For trade, studio and lab work
99.9% sodium tetraborate decahydrate, CAS 1303-96-4. Supplied with a Safety Data Sheet for professional, industrial and laboratory use.
For laundry and cleaning at home
A carbonate and bicarbonate blend that softens water, lifts grease and freshens fabrics. Unscented, phosphate-free and on open sale.
Since borax was classified as toxic for reproduction, it can no longer be sold to the public as a household cleaner. It is still supplied as a technical raw material for professional use. That gives you a simple rule.
Fluxing silver, mixing glazes, preparing buffers or treating timber. You need the real mineral.
Pure borax powderBoosting detergent, whitening towels, degreasing the hob. The substitute does these jobs and is on open sale.
Borax substituteTypical jobs our customers buy for, with the dose or method that works.
Pure borax is not sold for household cleaning, food use, cosmetics or making slime. For craft projects at home, choose products sold for that purpose.
Tell us the job and how often you do it. We work out which product and size suits you, how long it should last and the cost per 100g.
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Few high-street shops still stock pure borax, so we deliver it to your door instead. Here is what happens after you order.
Pay by card through Stripe’s secure checkout. You get an order confirmation by email straight away.
Your order is packed and handed to the carrier. Tracking follows by email once it is on its way.
To any UK postcode: England, Scotland, Wales and Northern Ireland, homes and workshops alike.
Returns within 14 days on unopened, sealed packs; return postage is paid by the buyer. Full delivery and returns policy
Borax is a naturally occurring boron mineral. Refined and milled, it becomes the fine white powder used for over a century as a metalworking flux, a glaze ingredient and a laboratory buffer. Dissolved in water it gives a mild alkaline solution of around pH 9.2.
Ours is the genuine mineral, not the sesquicarbonate blends sold as “borax” on some supermarket shelves.
Borax uses explained| Chemical name | Sodium tetraborate decahydrate |
|---|---|
| Formula | Na₂B₄O₇·10H₂O |
| CAS / EC number | 1303-96-4 / 215-540-4 |
| Assay | 99.9%, technical grade |
| Form | Fine white crystalline powder, odourless |
| Pack sizes | 900g and 3kg |
| Documents | Safety Data Sheet with every order; CoA on request |
| Classification | Repr. 1B, H360FD. Professional use only |
Still unsure? Contact us and we will reply by email.
Here, online. We sell 99.9% pure borax powder for professional, trade and laboratory use, and a borax substitute for household use. Both are delivered free to any UK postcode.
Not entirely. Borax is classified as toxic for reproduction, so it cannot be sold to the general public as a household product. It can still be supplied as a technical raw material for professional, industrial and laboratory use.
Pure borax powder costs £17.99 for 900g (2 lb) and £31.99 for 3kg (6.6 lb), with free UK delivery. Borax substitute starts from the same price.
No. Borax is sodium tetraborate, a boron compound. Borax substitute is a blend of sodium carbonate and sodium bicarbonate that does similar laundry and cleaning jobs and is on open sale.
High-street stockists of pure borax are rare. Ordering online is usually the quickest way to get it: we deliver free across England, Scotland, Wales and Northern Ireland in 3–7 working days.
We do not sell pure borax for slime, toys or any household use. For craft projects choose a product sold specifically for that purpose and follow its instructions.
Orders ship from the EU and usually arrive within 3–7 working days. Delivery is free, and you receive tracking by email once your parcel is on its way.
Yes, within 14 days of delivery if the product is unopened and in its original sealed packaging. The buyer pays the return postage. Contact us first for the return address.
Pure borax is classified Repr. 1B (H360FD: may damage fertility or the unborn child) and is sold for professional, industrial and laboratory use only. It is not for consumption. Keep all products out of reach of children, wear gloves and eye protection when handling powder, read the Safety Data Sheet and use as directed.
Free UK delivery, secure Stripe checkout and 14-day returns on unopened packs.
