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Scale crystal Distortion (CD) Scale crystal distortion is a mechanism providing the inclusion of a relatively large irregularly-shaped polymer in the scale lattice. This tends to prevent the deposition of a dense uniformly-structured crystalline mass on the metal surface. In theory, these crystals can develop internal stresses which increase as the crystal grows, with the result that the deposit breaks away from the metal surface, or never being attached. When crystallites are reaching a certain size, the CD is attached on it due to chemical forces and creating stereochemical disturbances is avoiding its further growth. The size in which is blocked the crystallite growth is below the minimum size to be attached onto the heating surfaces, neither precipitated. The distorted crystal remains in suspension and leaves the system through normal water losses, like bleeding, blowdown or windage.
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