Sodium potassium sulfide composition and method for preparing sa

Details Sodium potassium sulfide composition and method for preparing sa Sodium potassium sulfide composition and method for preparing sa

1996-06-13

1998-11-10

Straub, Gary P.

Bleaching and dyeing; fluid treatment and chemical modification

Treatment of hides, skins, feathers and animal tissues

Depilating

4235662, 252 857, G14C 106, C01B 1722

Patent

active

058337180

ABSTRACT:
Describes an aqueous composition of sodium potassium sulfide and methods for preparing this inter-alkali metal sulfide. One method described is the addition of sodium hydrosulfide to potassium hydroxide in an aqueous reaction medium. The aqueous sodium potassium sulfide composition preferably contains a slight excess of alkali metal hydrosulfide, e.g., sodium hydrosulfide. The sodium potassium sulfide is useful as a depilatory for removing hair from the hides of animals consumed as food.

REFERENCES:
patent: 330716 (1885-11-01), Kennedy
patent: 330790 (1885-11-01), Kennedy
patent: 1379855 (1921-05-01), Donner
patent: 1743938 (1930-01-01), Taylor
patent: 2016260 (1935-10-01), Turley
patent: 2937068 (1960-05-01), Panepinto
patent: 2945737 (1960-07-01), Thorstensen
patent: 3544596 (1970-12-01), Dillard
patent: 3574516 (1971-04-01), Heidemann et al.
patent: 3846538 (1974-11-01), Renault et al.
patent: 4127470 (1978-11-01), Baird, Jr. et al.
patent: 4606812 (1986-08-01), Swanson
patent: 5149295 (1992-09-01), Bowling et al.
Potassium Sodium Sulfide, KNaS, a New Inter-Alkali Metal Sulfide by Sabrowsky et al, Z. Anorg.Allg. Chem., 546, 169-176, 1987 (Abstract).

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