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  • Do not share your drugs with others and do not take anyone else's drugs.
  • 5. **Lab Supply Stores** For laboratory-grade HEC, scientific supply stores like Fisher Scientific, VWR, or Sigma-Aldrich should be your go-to source. They provide high-purity compounds with detailed technical data sheets.
  • The quality of HPMC dispersion is often measured by parameters such as viscosity, clarity, and sedimentation rate
  • Hydroxypropyl methylcellulose (HPMC), a semi-synthetic polymer derived from cellulose, is a widely employed substance across various industries due to its unique properties and versatility. It is created through the chemical modification of cellulose, a natural polymer found in plant cell walls, by introducing hydroxypropyl and methyl groups. This process enhances its solubility in water, making it suitable for use in both aqueous and non-aqueous systems.
  • HPMC, a modified form of cellulose, is a non-ionic, thermally stable, and water-soluble polymer. Its solubility in water is a key characteristic that makes it highly versatile. When HPMC is introduced to cold or hot water, it forms a clear, viscous solution. This property is largely dependent on the degree of substitution, molecular weight, and the temperature of the water.