Stabilization of aqueous p-benzoquinones

Details Stabilization of aqueous p-benzoquinones Stabilization of aqueous p-benzoquinones

1979-02-12

1980-05-13

Schafer, Richard E.

Compositions

Compositions containing a single chemical reactant or plural...

Organic reactant

252397, 252400R, 252404, 260 457R, 260 4575N, 430499, 430566, 430607, C09K 300

Patent

active

042027888

ABSTRACT:
The storage stability of aqueous p-benzoquinone and in general compounds of the formula ##STR1## where R.sub.1, R.sub.2, R.sub.3, and R.sub.4 may be the same or different and are selected, for example, from hydrogen, hydroxyl, cyano, halogen, carboxylic acid or ester, thio, thioethers, sulfonic acid or ester groups, sulfinic acid or ester groups, amino, alkylamino, dialkylamino, arylamino, diarylamino, alkylarylamino, cycloalkylamino, acylamino, acyloxy, acyl, nitro, C.sub.1 -C.sub.20 substituted or unsubstituted, saturated or unsaturated, straight chain, branched or cyclic aliphatic moieties, C.sub.6 -C.sub.32 substituted or unsubstituted aromatic moieties, and C.sub.1 -C.sub.18 alkoxy moieties, are improved by the addition of water-soluble, acidic or neutral inorganic salts of Periodic Table Group IA elements, Group IIA elements, and nickel. Such salts are typified by CaCl.sub.2, KCl, MgSO.sub.4, NaBr, NaCl, and NiCl.sub.2.

REFERENCES:
patent: 3065074 (1968-11-01), Rogers
patent: 3396022 (1968-08-01), Dersch
patent: 3519428 (1970-07-01), Ishikawa et al.
patent: 3965050 (1976-06-01), Shimogaua et al.
patent: 4010036 (1977-03-01), Suga et al.
patent: 4042764 (1977-08-01), Gratani et al.
patent: 4097454 (1978-06-01), Tozzi et al.

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