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Take l.00g of this product (calculated as anhydrous), accurately weigh it, put it in a 100ml measuring flask, add an appropriate amount of water to dissolve it, and place it in a constant temperature
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Take 10.0g of this product (calculated as anhydrous), add 80ml of water to dissolve it, add lg of sodium acetate, precisely add 10ml of iodine titration solution (0.05mol/L), leave it for 10 minutes,
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Crospovidone can be used as a clarifier and stabilizer for beer, fruit wine and juice in the brewing and beverage industries.
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Crospovidone disintegrant is an insoluble polymer cross-linked polyvinylpyrrolidone, with the trade name polyclar.
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PVP K90 USP is a high molecular weight, pharmaceutical-grade polymer manufactured by Ulanqab Kema. It is renowned for its superior binding and film-forming properties.CAS No.: 9003-39-8K-Value: 81.0
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PVPk-17 can not only improve the hydrophilicity of the membrane, but also control the pore size and distribution of the membrane by selecting PVP with different molecular weights and controlling the
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CTFA name: POLYVINYL PYRROLIDONE K. CSC No.:9003-39-8. Molecular formula: (C6H9NO)n
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Solubility: PVP is a water-soluble polymer, which is not only miscible with water, but also soluble in many organic solvents such as alcohols, carboxylic acids, amines, and halogenated hydrocarbons.
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As an active agent to stabilize colloidal particles, it is used in the preparation process of core-shell catalysts.
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Pvp polyvinylpyrrolidone itself is not carcinogenic and has good food safety. It can form complexes with specific polyphenol compounds (such as tannins).
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Poly vinyl pyrrolidone is obtained from the monomer vinyl pyrrolidone (NVP) through bulk polymerization, solution polymerization and other methods.
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Configure NVP into a solution with a mass fraction of 50%, use a small amount of hydrogen peroxide as a catalyst, and initiate polymerization at 50°C under the action of azobisisobutyronitrile, so
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