Particulate peroxygen compounds coated with sodium sesquicarbona

Details Particulate peroxygen compounds coated with sodium sesquicarbona Particulate peroxygen compounds coated with sodium sesquicarbona

1975-12-17

1978-08-08

Smith, Ronald H.

Stock material or miscellaneous articles

Coated or structually defined flake, particle, cell, strand,...

Particulate matter

427215, 427213, 423274, 423267, 252186, C11D 738

Patent

active

041058275

ABSTRACT:
Particulate peroxygen compounds selected from alkali metal percarbonates, perpyrophosphates, pertripolyphosphates and peroxymonosulphates are stabilized by coating the particles with a mixed salt selected from sesquicarbonate having the formula Na.sub.2 CO.sub.3.NaHCO.sub.3.2H.sub.2 O and mixed compounds obtained by crystallization of sodium sulfate and sodium carbonate of formula Na.sub.2 SO.sub.4.nNa.sub.2 CO.sub.3 where n is a number from 0.3 to 3.

REFERENCES:
patent: 2308992 (1943-01-01), Mertens
patent: 2874123 (1959-02-01), Schaafsma
patent: 2979464 (1961-04-01), Pestor
patent: 3706671 (1972-12-01), Hardy
patent: 3989635 (1976-11-01), Toyoda et al.

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