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Coagulants and Flocculants


Colorants, including pigments and dyes, enhance the aesthetics of plastic products. They can provide vibrant colors, improve opaqueness, and even impart special effects such as metallic or pearlescent finishes. The choice of colorant depends on the desired application and the properties of the base polymer. For example, certain pigments are designed to withstand UV light to prevent fading and maintain the product's appearance over time.


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The molecular structure of N,N-dimethylurea can be visualized as having a central carbon atom bound to two nitrogen atoms and one oxygen atom, characteristic of urea. The presence of two methyl groups permits N,N-dimethylurea to exhibit unique chemical behavior, influencing its reactivity and interactions with other chemical species. It is a colorless, crystalline solid that is soluble in water, alcohols, and various organic solvents, allowing it to be integrated into a wide range of formulations and processes. The compound typically has a melting point of about 116 °C and a boiling point of approximately 180 °C.


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