Titanium is a natural element. It has the symbol symbol on the periodic table of the elements. and it is the ninth most abundant element in the earth's crust.

Titanium dioxide. a natural white solid compound. is commonly utilized as a bright white pigment in various industries such as paints. plastics. paper. and cosmetics. Its ability to reflect and scatter light with its high refractive index results in a brilliant white appearance. Renowned for its physical stability and chemical inertness. it is an ideal ingredient for sunscreens that can withstand heat and remain insoluble in water. It has a high melting point of 1.843 degrees and can take on three crystal forms: rutile. anatase. and plagioclase. This compound also possesses photocatalytic properties. making it effective for pollution control purposes.

When comparing the strength of polypropylene versus polycarbonate, it is essential to define "strength" in a specific context, as it can refer to tensile strength, impact resistance, or hardness. Polycarbonate outshines polypropylene in terms of tensile strength and impact resistance, making it a preferred choice for applications requiring durability under stress, such as bullet-proof windows and medical devices. Additionally, polycarbonate exhibits excellent clarity and can be engineered for high temperature and electrical applications. On the other hand, polypropylene is renowned for its chemical resistance and is typically used in containers and packaging, automotive parts, and textiles. It also has a higher fatigue resistance than polycarbonate, making it suitable for hinges or components that undergo repetitive motion. In summary, while polypropylene is useful for its chemical resistance and fatigue strength, polycarbonate is stronger in terms of impact resistance and tensile strength.