in water addn. of 30 g (C6H5O)PO(NH2)2 to a hot soln. of 30 g KOH in 30 ml H2O; standing for 5 min; cooling with ice and addn. of a mixt. of 30 g glacial acetic acid and 10 ml H2O then 300 ml ethanol;; pptn. of POOH(NH2)2, washing with alc. and ether, drying on air; dissolving in H2O, pptn. with ethanol;;
in water addn. of 30 g (C6H5O)PO(NH2)2 to a hot soln. of 30 g KOH in 30 ml H2O; standing for 5 min; cooling with ice and addn. of a mixt. of 30 g glacial acetic acid and 10 ml H2O then 300 ml ethanol;; pptn. of POOH(NH2)2, washing with alc. and ether, drying on air; dissolving in H2O, pptn. with ethanol;;