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  • 2. Online Marketplaces Platforms such as Amazon, eBay, and Alibaba can be valuable resources for purchasing HEC. Many vendors sell HEC in bulk or smaller quantities, catering to different customer needs. When purchasing from these marketplaces, it’s essential to check reviews and seller ratings to ensure the quality of the product. Additionally, be mindful of shipping times and costs, which can vary significantly.


  • Hydroxypropyl Methylcellulose (HPMC) is a versatile and essential additive used in the construction industry to improve the performance of various construction materials. As a non-ionic cellulose ether, HPMC is widely utilized in mortar, cement, gypsum, and other construction applications due to its excellent water retention, workability, adhesion, and thickening properties.
  • Medium viscosity HPMC is often used as a film former in products such as tablets and capsules. It helps to protect the active ingredients in these products and ensure that they are delivered effectively to the body. Medium viscosity HPMC is also used as a binding agent in solid dosage forms, helping to hold the ingredients together and prevent them from crumbling
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  • In the pharmaceutical industry, using HPMC can lead to cost savings in drug development and production. HPMC is a highly compatible and customizable excipient, making it an ideal ingredient in drug delivery systems. Its low viscosity and high solubility make it an attractive option for improving drug bioavailability and efficacy.

  • An aqueous solution of HEC is a non-Newtonian fluid, and its viscosity changes as the shear rate changes.
    The viscosity increases as the shear rate decreases, while the viscosity decreases as the shear rate increases (thixotropy).
    The thixotropy of an aqueous solution of HEC increases with higher viscosity products with higher molecular weight, and decreases with lower viscosity products. Low-viscosity products have very low thixotropy and exhibit characteristics similar to Newtonian fluids.

  • Pros of HPMC:

  • 4. pH and Ionic Strength The viscosity of HEC is also affected by the pH of the solution and the presence of salts or other ionic species. Changes in these conditions can alter the charge interactions within the polymer, subsequently affecting the viscosity.