To prevent scratching or chipping, especially when your cast iron pieces are nesting within each other, use cloth or paper towels to create a buffer. Place these in between multiple pieces to prevent them from clanging together during transit.
- The preparation of HPMC solutions involves dissolving the polymer in water to create a uniform and stable solution. The concentration of HPMC in the solution can vary depending on the desired viscosity and other properties needed for the specific application. Typically, HPMC solutions are prepared by adding the polymer to water with constant stirring to ensure uniform dispersion.
HPMC CAS : No. 004-65-3
The benefits of incorporating HPMC into pharmaceutical formulations are manifold. By utilizing HPMC as a matrix former in sustained-release dosage forms, pharmaceutical manufacturers can achieve precise control over drug release, leading to optimized therapeutic outcomes and minimized side effects. Furthermore, HPMC’s bioadhesive properties make it suitable for use in ophthalmic formulations, enhancing the contact time of drugs with ocular tissues and improving the efficacy of treatments for conditions such as glaucoma and dry eye syndrome. Additionally, HPMC’s compatibility with a variety of active pharmaceutical ingredients and its ability to enhance solubility and bioavailability further contribute to its value in pharmaceutical applications, making it a preferred choice for formulators seeking to develop safe, effective, and patient-friendly drug products.
As a hydrocolloid, HPMC gel is used as a thickener and stabilizer in a variety of food products, including sauces, dressings and dairy products.




HPMC is manufactured following this process:1, 2

hydroxyethyl cellulose thickening mechanism. Additionally, HEC solutions are temperature-dependent, with higher temperatures leading to a decrease in viscosity due to the weakening of hydrogen bonds between the polymer chains.