Titanium has a Pauling electronegativity of 1.54.

High Density Polyethylene (HDPE) and Low Density Polyethylene (LDPE) are both thermoplastic polymers made from ethylene. The key difference lies in their manufacturing process and molecular structure, which significantly influence their properties. HDPE is produced under low pressure but with a catalyst that creates a linear, closely packed structure, resulting in a dense, strong material with high temperature resistance and tensile strength. In contrast, LDPE is synthesized at high pressure without a catalyst, leading to a more branched molecular structure. This makes LDPE less dense, softer, and more flexible than HDPE. Consequently, HDPE is ideal for products requiring rigidity and durability, such as milk jugs and water pipes, while LDPE is suitable for applications demanding flexibility, like plastic bags and squeeze bottles.

PVC, or polyvinyl chloride, is a type of plastic that can release harmful chemicals, such as dioxins, especially when burned or melted. Exposure to these chemicals can lead to various health issues. Treatment for PVC poisoning mainly focuses on removing the source of exposure and treating the symptoms. If inhaled, moving to fresh air and seeking medical attention for respiratory support is crucial. In case of skin contact, thoroughly washing with soap and water is essential to remove any residues. For ingestion, medical advice should be sought, and activated charcoal might be administered to prevent absorption of the chemicals into the body. Ongoing support for liver and kidney function may be needed, depending on the severity of exposure. It's also important to note the chronic effects of dioxin exposure require monitoring and possibly long-term medical care. Avoiding PVC exposure, especially in scenarios where it can be burned or heated, is key to prevention.