Sodium polyacrylate is a commonly used dispersant, also known as sodium 2-acrylate homopolymer, sodium S polyacrylate, colorless or light yellow viscous liquid at room temperature, non-toxic, weakly alkaline, insoluble in ethanol, acetone and other organic solvents, easily soluble in water and sodium hydroxide aqueous solution, but in calcium hydroxide, magnesium hydroxide and other aqueous solutions with the increase in the number of alkali earth metal ions, first dissolved after precipitation. It can operate under alkaline and medium concentration conditions without scaling, and its molecular weight is about 500-3000. It can disperse microcrystals or sediment of salts such as calcium carbonate and calcium sulfate in water without settling, so as to achieve scale inhibition. In addition, it can be used as scale inhibition dispersant in circulating cooling water systems such as power plants, chemical plants, fertilizer plants, refineries and air conditioning systems. It is also widely used in papermaking, textile printing and dyeing, ceramics, coatings, building materials and other industries.
Melting Point
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>300 °C
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Density
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1.528[at 20℃]
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Solubility
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Soluble in acid solution (slight), methanol (slight), water (slight)
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Water Solubility
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479 g/L at 20℃
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Stability
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May be unstable; It can spontaneously polymerize. Incompatible with strong oxidants.
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LogP
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0.46 at 25℃
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