Before seasoning, start by cleaning your cast iron skillet thoroughly. If it’s new, rinse it with warm water to remove any factory residues. For old skillets that may have food build-up, scrub them with a non-metal brush or a sponge using mild soap. Although soap should generally be avoided in caring for cast iron, it’s okay if you’re working with an older pan that needs a deep clean. Rinse and dry the skillet completely to prevent any moisture from causing rust.

buy hydroxypropyl methylcellulose. HPMC is also used in ophthalmic formulations, where it helps improve the viscosity and retention time of eye drops.






1、What is HPMC?
Have you ever wondered what hydroxypropyl methylcellulose was? In this article I’ll cover in plain english what is it, what it’s used for and whether it’s safe to eat.
1)The water retention of Methyl Cellulose depends on the dosage, viscosity, particle size, and dissolution rate. Generally, higher dosage, smaller particle size, and higher viscosity result in better water retention. Among various cellulose ethers, Methyl Cellulose and Hydroxypropyl Methylcellulose exhibit higher water retention.

hydroxyethyl cellulose chemical formula. Its ability to enhance the texture and appearance of cosmetic products makes it a popular choice among formulators.
Hydroxypropyl methyl cellulose (HPMC) is a cellulose derivative that was first developed and used in industrial and food applications starting in the 20th century. Its exact origin in terms of discovery and initial development is difficult to attribute to a single individual or organization, as research and development of cellulose derivatives has involved many scientists and companies at different times.
HPMC is produced through a chemical process known as etherification, in which natural cellulose is treated with hydroxypropyl chloride and sodium methoxide. This process alters the chemical structure of cellulose, making it water-soluble and giving it desired properties as a thickener, stabilizer and film-forming agent.
Production and Use over Time:
The use of HPMC in industrial and food applications has grown significantly since the mid-20th century, when researchers began to more fully explore the potential uses of cellulose derivatives. Its ability to act as a thickener, emulsifier and stabilizer has increased its adoption in a variety of industries, including pharmaceuticals, cosmetics and food.
