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phosphite Chem.|ˈfɒsfaɪt|
[a. F. phosphite (G. de Morveau Nomencl. Ch. 1787), f. phosph- + -ite1.]
A salt or ester of phosphorous acid.
1799Hooper Med. Dict., Phosphites,..salts formed by the combination of the phosphorous acid with different bases; thus, aluminous phosphite, ammoniacal phosphite, &c. 1808Sir H. Davy in Phil. Trans. XCIX. 88 In one case sulphurets, and sulphites, and in the other phosphurets, and phosphites of potash, are generated. 1808Henry Epit. Chem. (ed. 5) 203 The phosphites differ considerably in their characters from phosphates. 1866Roscoe Elem. Chem. 133 Phosphorous acid, or hydric phosphite, H3PO3. 1890Jrnl. Chem. Soc. LVIII. 858 Ethyl phosphite, P(OEt)3, is obtained,..when phosphorus trichloride is gradually added to finely divided sodium ethoxide, covered with ether. 1966J. Cason Princ. Mod. Org. Chem. xxxiii. 603 Phosphorus trichloride reacts with alcohols to give phosphite esters... Only the tri-esters of phosphorous acid are known. 1970Encycl. Polymer Sci. & Technol. XII. 748 Tertiary phosphites are among the most efficient groups of materials which have been used as poly(vinyl chloride) stabilizing agents. |