ZINC OXIDE I.P 1*400GM

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Overview
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Zinc oxide is an inorganic compound with the chemical formula ZnO that appears as a white or yellowish-white, odorless powder, nearly insoluble in water. It is widely used in various industrial and medical applications due to its unique physical and chemical properties.

Key Physical and Chemical Properties

Appearance: White to yellowish-white, amorphous, odorless powder.
Solubility: Nearly insoluble in water, but dissolves in most acids and strong alkalis (amphoteric oxide).
Melting Point: Has a very high melting point of approximately 1975°C (decomposes).
Crystalline Structure: Most commonly found in a hexagonal wurtzite crystal structure.
Thermochromism: Crystalline zinc oxide reversibly changes color from white to yellow when heated in air, and reverts to white on cooling.
Antibacterial Properties: Exhibits strong antibacterial and antifungal effects.
UV Protection: It is a broad-spectrum UV absorber, blocking both UVA and UVB rays, making it effective in sunscreens.

Common Applications

Zinc oxide's versatility leads to a wide range of uses across multiple industries:

Medicine and Cosmetics: Used as a skin protectant and mild astringent and antiseptic. It is a common ingredient in products such as:
Diaper rash creams and barrier creams
Calamine lotion (a mixture with a small amount of iron(III) oxide)
Sunscreens (as a physical/mineral UV filter)
Antiseptic ointments and baby powder
Acne treatments and anti-dandruff shampoos
Rubber Industry: The largest single use of zinc oxide is as an activator in the sulfur vulcanization of rubber to improve its strength, elasticity, and weather resistance.
Paints and Pigments: Known as "zinc white" or "Chinese white," it is used as a white pigment in paints and coatings due to its brightness and opacity.
Ceramics and Glass: Incorporated into ceramic glazes and frit compositions to control the melting point and optical properties, and to improve elasticity.
Electronics: Used in semiconductors, transparent electrodes for displays and solar cells, gas sensors, and varistors for surge protection.
Food Additive: Added to many food products, such as breakfast cereals, as a source of essential dietary zinc

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