The name of Iron III oxide is Ferric oxide, which is often recognized by its chemical formula, Fe2O3. It is one of the principal oxides of iron and is an inorganic compound that appears in various forms, most notably as the minerals hematite and magnetite. The numeral III in Iron(III) oxide indicates that iron is in the +3 oxidation state, also known as the ferric state. This oxide is commonly found in rust, a form of corrosion that occurs when iron reacts with oxygen and moisture. Its significance spans various applications from being a pigment in paints and cosmetics to serving as a precursor for iron production. Additionally, its magnetic properties are harnessed in many forms of magnetic recording media.

Fluoropolymer coating is a type of synthetic polymer coating that contains fluorocarbon bonds, providing exceptional resistance to high temperatures, chemical corrosion, and electrical conductivity. It is created by polymerizing fluorocarbons, a process involving the reaction of fluorine with hydrocarbons. This results in a polymer with strong carbon-fluorine bonds known for their low surface energy, non-stick properties, and resistance to corrosives. Common types include PTFE (Polytetrafluoroethylene, best known as Teflon), PVDF (Polyvinylidene fluoride), and FEP (Fluorinated ethylene propylene). Application methods vary, from traditional spraying to more specialized processes like electrostatic deposition, depending on the desired thickness and uniformity of the coating. Fluoropolymer coatings are widely used in various industries such as automotive, aerospace, and cookware due to their durability and high-performance properties.

Hemicelluloses are a group of heterogeneous polysaccharides found in plant cell walls that play a crucial role in crosslinking cellulose microfibrils, enhancing the structural integrity of the cell wall. Their ability to form these crosslinks is primarily due to their branched structure, which allows them to bind with multiple cellulose chains, effectively tethering them together. Hemicelluloses have a lower degree of polymerization than cellulose and contain various monosaccharides, enabling diverse interactions with cellulose and other cell wall components. This attribute contributes to the formation of a matrix that embeds cellulose microfibrils, facilitating mechanical strength and flexibility in plant tissues. Moreover, hemicelluloses can undergo chemical modifications, which further enhance their binding capabilities and impact the physical properties of the cell wall, such as porosity and water retention.