Patent ID: 6890453

Claim:
A solid stabiliser composition, comprising: a salt of a halogen-containing oxy acid of the general formula M(ClO 4 ) k , wherein M is Li, Na, K, Mg, Ca, Sr, Zn, Al, La, Ce or an ammonium cation of the general formula NR 4 + , the radicals R are each independently of the others H or a linear or branched alkyl radical having from 1 to about 10 carbon atoms and k, according to the valency of M, is the number 1, 2 or 3, and an inorganic acid, an organic acid or an inorganic base, wherein the composition contains less than 10% crystallites of the salt by weight that have a crystallite size greater than 3 μm based on the total content of the salt of the halogen-containing oxy acid in the composition.