P507 extractant
2-ethylhexyl phosphoric acid mono-2-ethylhexyl ester
CAS 14802-03-0
P507 is a mono-ester extractant with a minimum content of 95.0% and a dicarboxylic acid limit of 2.0%. It is used across non-ferrous metal separation duties: copper, zinc, cobalt-nickel, cadmium, gold-silver, platinum group metals and rare earths. The acidity window is set per metal pair, so the same reagent serves several stages in one flowsheet.
- ≥95.0% active content
- Cobalt-nickel at pH 3.4–4.0
- Rare earth separation cascades
- Gold-silver and PGM stages
Key parameters
Values are confirmed on the technical data sheet issued with the quotation.
- Appearance
- Clear to pale yellow liquid
- Formula
- (C8H17)2PO3H
- Formula weight
- 306.4
- Active content
- ≥95.0%
- Dicarboxylic acid
- ≤2.0%
- Phase separation
- ≤90 s
- Acid value
- 180–195 mg KOH/g
- Density (20 °C)
- 0.940–0.960 g/cm³
- Refractive index
- 1.4480–1.4520
- Viscosity (25 °C)
- 36 ± 3 mPa·s
- Flash point
- 170 ± 3 °C
Typical use
Cobalt-nickel separation in sulphate circuits at pH 3.4–4.0, copper and zinc purification, cadmium removal, precious metal separation and rare earth cascades.
- 01Cobalt-nickel separation runs in a pH 3.4–4.0 window; the scrub acid sets the cobalt-to-nickel ratio in the strip.
- 02Gold-silver and platinum group metal stages run at low metal concentration with tight phase ratios.
- 03A dicarboxylic acid limit of 2.0% keeps phase separation inside the 90 s design figure.
Packing and storage
- 01200 kg plastic drum
- 021000 kg IBC tote
- 03ISO tank
Pack sizes are confirmed with the quotation. Mixed pallets and customer-specified packing are quoted on request.
- Store in a cool, dry and ventilated warehouse.
- Keep away from direct sunlight, open flame and strong oxidisers.
- Keep containers sealed and do not store with alkaline products.
