
Phosphoric Acid 85% (Orthophosphoric Acid)
85% orthophosphoric acid for rust converters and phosphating of ferrous metals, and for preparing buffer solutions.
Shipped as dangerous goods (UN 1805). Professional use only. The Safety Data Sheet (SDS) is sent by email on request.
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Orthophosphoric acid (H3PO4, CAS 7664-38-2) ≥85%, RPH grade, density 1.88 kg/l.
- Uses: diluted (5–20%) for converting rust into iron phosphate and phosphating before protective coatings, a component of converters with tannic acid, preparing phosphate buffer solutions
- Always dilute by adding the acid to the water
- Supplied by: C.T.S. S.r.l. (Italy)
Safety: Corrosive (UN 1805): causes severe skin burns and eye damage – gloves, goggles/face shield. Safety data sheet (SDS) available on request.
Made to order · imported from abroad. This product is ordered from the manufacturer. Import shipping costs may be added to the price; we confirm them by email before payment.
- You place the order online, without payment.
- We confirm prices, availability and shipping cost and send you the final amount.
- You pay by bank transfer and send the payment slip quoting the order number.
- Shipping by BOX NOW, ACS or freight carrier in Greece, FedEx or DHL abroad. You can see the tracking number in your account.
Public bodies follow their own procurement procedure. Request a quote.







