Method of preparing morpholinium phosphates

Details Method of preparing morpholinium phosphates Method of preparing morpholinium phosphates

1981-06-29

1983-01-18

Ramsuer, Robert W.

Organic compounds -- part of the class 532-570 series

Organic compounds

Chalcogen in the nitrogen containing substituent

260990, C07D 909

Patent

active

043693172

ABSTRACT:
A membrane for use in the determination of calcium ion concentration in an aqueous solution, the membrane being of the type comprising a calcium ion selective component and a carrier material. The membrane is characterized in that the calcium ion selective component is a compound having a formula (I): ##STR1## wherein: X and Y are independently selected from a group consisting of aryl, alkyl(aryl), alkenyl(aryl), alkynyl(aryl), alkyl, cycloalkyl, alkenyl, cycloalkenyl, and alkynyl radicals wherein said alkyl moiety of said alkyl(aryl) radical consists of 1-12 carbon atoms; each alkenyl and alkynyl moiety of said alkenyl(aryl) and alkynyl(aryl) radicals, respectively, consists of 2-12 carbon atoms; each aryl moiety consists of 6, 10, 12, or 14 carbon atoms; and each alkyl, cycloalkyl, alkenyl, cycloalkenyl, and alkynyl radical consists of 6 to 14 carbon atoms; and

REFERENCES:
patent: 2658909 (1953-11-01), Crandall et al.
patent: 3932233 (1976-01-01), Ruzicka et al.

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