Descalant composition and use

Claim 1

A DESCALANT COMPOSITION CONSISTING ESSENTIALLY OF (1) 60% BY WEIGHT OF SODIUM XYLENE SULFONATE, (2) 30% BY WEIGHT OF SODIUM ACID SULFATE, (3) 6% BY WEIGHT OF TARTARIC ACID AND (4) 4% BY WEIGHT OF A COGENERIC MIXTURE OF CONJUGATED POLYOXYPROPYLENE-POLYOXYETHYLENE COMPOUNDS CONTAINING IN THEIR STRUCTURE OXYPROPYLENE GROUPS, OXYETHYLENE GROUPS AND AN ORGANIC RADICAL DERIVED FROM AN ORGANIC COMPOUND CONTAINING A PLURALITY OF REACTIVE HYDROGEN ATOMS, THE COMPOUNDS BEING CHARACTERIZED IN THAT ALL OF THE OXYPROPYLENE GROUPS ARE PRESENT IN POLYOXYPROPYLENE CHAINS THAT ARE ATTACHED TO THE ORGANIC RADICAL AT THE SITE OF A REACTIVE HYDROGEN ATOM TO THEREBY CONSTITUTE A POLYOXYPROPYLENE POLYMER, THE OXYETHYLENE GROUPS ARE ATTACHED TO THE POLYOXYPROPYLENE POLYMER IN POLYOXYETHYLENE CHAINS, THE AVERAGE MOLECULAR WEIGHT OF THE POLYOXYPROPYLENE POLYMERS IN THE MIXTURE IS AT LEAST 900 AS DETERMINED BY HYDROXYL NUMBER, AND THE OXYETHYLENE GROUPS PRESENT CONSTITUTE 20-90% BY WEIGHT OF THE MIXTURE.