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Bis(2,4,4-Trimethylpentyl) Phosphinic Acid (BTMPP)


Synonyms: Diisooctylphosphinic Acid; BTMPP; BTMPPA; Cyanex 272
CAS No.: 83411-71-6; EC No.: 280-445-7
Molecular Weight: 290.42
Molecular Formula: C16H35O2P
M.p.: °C
B.p.:300°C (1 atm)
F.p.: 108°C
Structural Formula: BTMPP




Bis(2,4,4-trimethylpentyl)phosphinic acid (BTMPP) is applied as a solvent extractant in hydrometallurgy to seperate cobalt from nickle, rare earth metals etc.


Active content 85%, 88%, 96% min.
Specific gravity ~0.94
Solubility in water 30ppm max.
b.p. 300°C min.
f.p. 108°C min.
Appearance Colorless to pale yellow liquid

Standard Packaging

20 or 165kgs/plastic drum

Packaging photos coming soon

Risks and Safety Information

Bis(2,4,4-trimethylpentyl)phosphinic acid (BTMPP) is not regulated by UN or US DOT as hazmat
R 22 Harmful if swallowed.
R 36 Irritating to eyes
S 26 In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
S 37/39 Wear suitable gloves and eye/face protection.

No Hazard

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