basic dyes are more effective for bacterial staining than acidic dyes because basic dyes have a positive charged chromogen. Bacterial nucleic acids and certain cell wall compo â¦ nents carry a negative charge that strongly binds to the cationic chromogen.
Zinc oxide can be used in ointments, creams, and lotions to protect against sunburn and other damage to the skin caused by ultraviolet light (see sunscreen). It is the broadest spectrum UVA and UVB reflector that is approved for use as a sunscreen by the FDA, and is completely photostable.he zinc oxide is thought to have been produced by heating zinc ore in a shaft furnace. This liberated metallic zinc as a vapor, which then ascended the flue and condensed as the oxide. This process was described by Dioscorides in the 1st century AD.
Galvanize poisoning is a condition that results from the over exposure to zinc oxide. Zinc oxide is formed when the steelâs galvanized coating evaporates from the high heat used in welding. Galvanized steel is iron that has been coated with zinc.When the galvanized steel is hot-dipped the zinc has a chemical reaction with the base metal and forms a corrosion resistant coating.This results in the outer layer of the metal have a coating of pure zinc while subsequent layers change in composition until the iron base metal is reached.alvanize poisoning is a condition that results from the over exposure to zinc oxide. Zinc oxide is formed when the steelâs galvanized coating evaporates from the high heat used in welding. Galvanized steel is iron that has been coated with zinc.