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Table I.5 Commercial sohating extractants J
Carbon-oxygen extractants		/
Amides	R'CONRś	*
	R^1 = R^2 = unknown	A101 (12)
	R^1 = CH3; R^2 = CH3(CH2)3CH(CH3)-	N503 (12)
Ethers	CHs(CH2)30CH2CH20CH2CH20(CH2)3CH3	dibutylcarbitol (13) Butex
Ketones	(CH3)2CHCH2COCH3	isobutylmethylketone (13)
		MIBK
Phosphous-oxygen extractants	R'R^2R^3PO
Phosphorus esters	R^1 = R^2 = R^3 = CH3(CH2)2CH20-	tri-n-butylphosphate (13) TBP
	R^1 = R^2 = CH3(CH2)2CH20- ;	dibutylbutylphosphonate (7,11)
	R^3 = CH3(CH2)2CH2CH2-	DBPP
	R^! = R^2 = CH30- ; R^3 = CH}-	dimethylmethylphosphonate (7)
Phosphine oxides	R‘ = R^2 = R^3 = CH3(CH2)6CH2-	tri-n-octylphosphine oxide TOPO (13) Cyanex 921 (2)
	Mixcd alkyl groups n-octyl and n-hexyl R^2 = CH3C(CH3)2CH2CH(CH3)CH2-	Cyanex 923 (2)
	R^3 = CH,(CH2)6CH2-	Cyanex 925 (2)

MICHAEL COX