Titanium dioxide (TiO2) is a compound known for its stability and resistance to many chemical reactions. Most acids and bases do not dissolve it, at least at room temperature. However, it can be dissolved by strong acids like sulfuric acid or hydrofluoric acid (HF) under high temperatures. It's essential to understand that working with such substances requires extreme caution due to their highly corrosive and hazardous nature. They should only be handled by trained professionals in the appropriate environment while following safety protocols.

Polypropylene was discovered in 1954 by Italian chemist Giulio Natta and his team, following earlier work by Karl Ziegler who developed the Ziegler-Natta catalyst. Ziegler had already invented a process for polymerizing ethylene into polyethylene. Natta's breakthrough involved applying similar catalytic methodologies to propylene, resulting in the creation of polypropylene, a thermoplastic polymer. This discovery was significant for creating a plastic with high resilience and melting point, making it suitable for a vast range of uses, from packaging to automotive components. The innovative work of Natta and Ziegler fundamentally transformed the plastic industry, earning them the Nobel Prize in Chemistry in 1963.

Titanium. renowned for its impressive strength-to-weight ratio. is a highly resilient silver-colored metal utilized in various fields such as aerospace and medical technology. Although titanium appears silver. this is due to its metallic properties rather than being the color itself. Fascinatingly. titanium can be transformed into shades of blue. purple. and even intricate patterns through anodizing. The chosen color outcome is determined by the thickness of the oxide layer developed during this specialized process.