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US 5,296,210 AGranted
Stabilized sodium dithionite
AssigneeHoechst Celanese Corporation
InventorDonald M. Oglesby
Life of this patent
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Abstract
A process for stabilizing sodium dithionite is disclosed, whereby a selected additive is used.
Claims9
A method for stabilizing sodium dithionite comprising mixing with said sodium dithionite from 0.5 percent by weight to 5.0 percent by weight of an additive selected from the group consisting of
- a) calcium oxide;
- b) barium oxide;
- c) a mixture of calcium sulfate and sodium carbonate;
- d) a mixture of silica gel and sodium carbonate;
- e) a mixture of aluminum oxide and sodium carbonate;
- and
- f) a mixture of calcium oxide and barium oxide.
4 more elements
Dependencies are inferred from the claim text.