Compound for removing alkaline earth metal scale deposits and si

Compositions – Water-softening or purifying or scale-inhibiting agents – Plant or organic material containing

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252 80, 252 82, 252181, 210698, 134 3, C02F 510, C02F 500

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active

057628211

ABSTRACT:
Alkaline earth metal scales, particularly barium sulfate and strontium sulfate, and silica-based scales, particularly potassium fluorosilicate, are removed from industrial processing equipment, tubular goods, and other scaled materials with a composition comprising sufficient potassium base to provide an overall system pH of between about 12.0 to about 14.0, a polyaminocarboxylic acid, preferably EDTA, a hydroxycarboxylic acid synergist, a pH buffering agent, a wetting agent, and optionally a sodium base.

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