Patent ID: 8414932

Claim:
A solid state bromine-containing biocidal composition formed by removal of the water from an aqueous solution or slurry of a product formed in water from (A) (i) bromine chloride, (ii) a mixture of bromine chloride and bromine, (iii) bromine and chlorine in a Br 2 to Cl 2 molar ratio of at least 1 or about 1, or (iv) bromine chloride, bromine, and chlorine in proportions such that the total Br 2 to Cl 2 molar ratio is at least 1 or about 1; and (B) (i) alkali metal salt of sulfamic acid and/or sulfamic acid, and (ii) alkali metal base, wherein said aqueous solution or slurry has a pH of at least 7 and an atom ratio of nitrogen to active bromine from (A) and (B) of greater than 0.93, wherein said composition is a spray-dried composition.