Phosphinic acid adducts with maleic acid semiesters, a process f

Classifying – separating – and assorting solids – Fluid suspension – Liquid

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252 61, B03D 102

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active

047028238

ABSTRACT:
The invention relates to adducts of phosphinic acid with maleic acid semiesters and salts thereof corresponding to the following general formula ##STR1## in which R.sup.1 is hydrogen or a methyl group,

REFERENCES:
patent: 4081363 (1978-03-01), Grayson
patent: 4138350 (1979-02-01), Wang et al.
patent: 4139482 (1979-02-01), Holme
patent: 4192739 (1980-03-01), Wang et al.
Zhurnal Obshchei Khimii, vol. 45, No. 2, pp. 314-316, 2/85.

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