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Is alumina powder toxic?

Alumina powder is the main raw material for abrasives such as white corundum sand. It has the characteristics of high temperature resistance, corrosion resistance and stable properties. As the production process of alumina powder becomes higher, it is technically possible to produce alumina powder below 1μm. , It is widely used in various acrylic resins, polyurethane resins, epoxy resins and other additives. It can also be water-based or oil-based solvents. It can be coated on glass coating materials, gemstones, precision instrument materials, etc., commonly used for analysis Reagents, dehydration of organic solvents, adsorbents, organic reaction catalysts, abrasives, polishing agents, raw materials for smelting aluminum, and refractory materials. So is alumina powder toxic?

To know whether activated alumina powder itself is toxic, let’s first understand its properties, production process and raw material properties.

Activated alumina powder (Al2O3) is mainly produced by drying, crushing and roasting industrial aluminum hydroxide. No additives and chemical components are added during the production process. Aluminium hydroxide (Aluminium hydroxide), the chemical formula Al(OH)3, is the hydroxide of aluminum. Aluminum hydroxide can react with acid to form salt and water, and it can also react with strong base to form salt and water. Therefore, it is also an amphoteric hydroxide and a non-toxic and odorless powder material.

Therefore, the toxicity of activated alumina powder is as follows:

Ingestion: Low risk, easy to cause Alzheimer’s disease, and damage children’s intelligence. Inhalation: May cause irritation or lung damage. Skin: Low risk. Eyes: low risk.

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