Dedicated Hydroxypropyl Methyl Cellulose

La description

  HPMC products directly into the water, it will produce condensation, then dissolved, but so it dissolves very slow and hard. The following three kinds of dissolution method is recommended, the user can use to choose the most convenient way: 
    a hot water law: Because HPMC does not dissolve in hot water, so early HPMC can be uniformly dispersed in water, followed by cooling, Two typical methods are described as follows: 
    1) in the required amount of hot water into the vessel and heated to about *0 ℃. Was gradually added under stirring slowly HPMC, HPMC start floating on the surface of the water, and then gradually to form a slurry, cooled with stirring to the slurry. 
    2), in the container is added to 1/3 or 2/3 of water, and heated to *0 ℃, by 1) method of dispersing HPMC, the preparation of hot water slurry; and adding the remaining amount of cold water or ice water to the hot slurry, followed by stirring the mixture was cooled. 
    Second, the powder mixing: the HPMC powder particles with equal or greater amount of other powder ingredients, by dry mixing sufficiently dispersed, then dissolved in water, at this time HPMC dissolves without agglomeration. 
    Third, the organic solvent wet: The HPMC with an organic solvent, such as ethanol, ethylene glycol or oil previously dispersing or wetting, and then dissolved in water, at this time HPMC can also dissolve smoothly.