Stabilized water-containing sodium dithionite formulations which have been rendered alkaline

US4676961A · kind A · utility

Assignee

• BASF SE

Inventors

• Max Appl · Schifferstadt, DE
• Wilhelm Goesele · Monsheim, DE
• Jaroslav Melzer · Ludwigshafen, DE
• Siegfried Schreiner · Ludwigshafen, DE
• Gert Treiber · Worms, DE

Key dates

• Filing date: Feb 22, 1985
• Grant date: Jun 30, 1987
• Expiry date: Feb 22, 2005

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C01B17/665
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

Stabilized water-containing sodium dithionite formulations which have been rendered alkaline have the consistency of a pumpable paste. They additionally contain readily soluble sodium salts and/or potassium salts which are inert to sodium dithionite and whose water-solubility at 20.degree. C. exceeds 500 g/l. These salts are present in the aqueous phase in an amount of not less than 200 g/l. The pastes are useful reducing agents.