Abstract: Acyl nitrile compounds of the formula:A--CNwherein A represents an acyl radical selected from aroyl, substituted aroyl, cinnamoyl, and the residue of a heterocyclic acid halide, are bleach activators of high strength and good activity in peroxygen salt bleach compositions.

Abstract: Diisocyanate halotriazine compounds of the formula: ##SPC1##Wherein X is a halogen atom are bleach activators which have high bleaching activity at low temperatures in peroxygen salt bleach compositions and do not appreciably change the shade of cotton dyed with many classes of dyes, particularly Vat Blue 6.

Abstract: Aroyl-N-hydroxyformimidoyl halides of the formula: ##EQU1## wherein Ar represents a substituted or unsubstituted aryl radical and X is halogen, are bleach activators of high strength and good activity at low temperatures in peroxygen salt bleach compositions and do not change the shade of cotton dyed with various classes of dyes, particularly Vat Blue 6.

Abstract: Strong, stable, free-flowing agglomerates of sodium carbonate peroxide are produced by contacting rotary agitated sodium carbonate peroxide with an aqueous agglomerating solution having a viscosity of at least 30 centipoise and containing less than 20% by weight agglomerating agent.

Abstract: This invention provides a method for activating peroxides, particularly hydrogen peroxide or hydrogen peroxide adducts and for thereby furnishing the said peroxides with excellent bleaching effects, cleaning effects, and sterilizing effects at low temperatures, by adding to the said peroxides an aromatic compound containing in the molecule one or several groups represented by the formula ##EQU1## wherein R is a substituted or unsubstituted monovalent aromatic group and X is either CO or SO.sub.2. The activation according to this invention is preferably carried out in an aqueous solution at a pH value ranging from 7 to 11, at a temperature below 40.degree.C.

Abstract: Halotriazines of the formula: ##SPC1##Where X represents halogen; and R.sub.1 and R.sub.2 individually represent halogen, hydroxy, mercapto, alkyl, alkenyl, alkoxy, alkylmercapto, aryl, aryloxy, arylmercapto, di-alkoxyphosphinyl or ##EQU1## where R.sub.3 and R.sub.4 individually represent hydrogen, alkyl, alkoxy, cyanoalkyl, hydroxyalkyl, carboxyalkyl, chloroalkyl, alkoxyalkyl, acyloxyalkyl, sulfonalkyl, aryl, haloaryl, sulfoaryl, acylaminoaryl, carbamoylalkyl or arylsulfonyloxyalkyl, or where R.sub.3 and R.sub.4 taken together complete a ring structure selected from morpholine, piperazine, piperdine, succinimide, malemide and phthalimide rings; are bleach activators of high activating strength and good storage stability in peroxygen bleaching compositions.

Abstract: This invention provides an improved method for stabilizing hydrogen peroxide in an acid aqueous solution of hydrogen peroxide containing copper ion capable of catalytically decomposing hydrogen peroxide. According to this invention there is used as a stabilizer in such method at least one glycol ether represented by the general formula R(OCH.sub.2 CH.sub.2).sub.n --OH wherein R is an alkyl group containing 1 to 4 carbon atoms and n is an integer from 1 to 2, and this stabilizer is added in the foregoing aqueous solution preferably in an amount of at least 0.1 g/l.