Di-(2-Ethyl Hexyl) Phosphoric Acid (D2EHPA) | Heavy Water Board, Government of India

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Di-(2-Ethyl Hexyl) Phosphoric Acid (D2EHPA)

Di-(2-Ethyl Hexyl) phosphoric acid (D2EHPA) is an Organo phosphorus compound which is pale yellow in color and is a diester of phosphoric acid and 2-ethylhexanol. In the nuclear industry it is used in combination with Tri- butyl Phosphate as nuclear solvent for extraction of Uranium from its ores.

Specification

Item	Unit	Value	Method/Standards
Sampling	---	---	ASTM-D300/D270
Appearance	---	Clear, colorless	---
Di Ester	%	>95	Derivative potentiometric titration
Mono Ester	%	>1.5	-do-
Water Content	%	<0.01	CF titration: ASTM-D1533/D1744
Color ( Gardner)	APHA	<100	ASTM-D1544 – 98
Acid No.	mg/gm	170 - 180	Pot. Titration: ASTM-D664 – 80
Density at 20oC	Gm/ cc	0.974 – 0.980	ASTM-D1298 – 80
Viscosity at 20oC	cp	55 - 60	ASTM-D445 – 79
Flash Point ( o C)	oC	150	ASTM-D93 – 80
Solubility of water	%	2.4	KF titration : ASTM-D1533 – 00
Solubility of water	%	<0.01	Total phosphorus by ICP

Applications: For Uranium extraction from Ores

Material Safety Data Sheet

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Di-(2-Ethyl Hexyl) Phosphoric Acid TOPS<sup>®</sup>-99

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