In many of these studies, though not all, lung cancer risks were elevated and could not be explained by confounding factors such as cigarette smoking or arsenic or radon inhalation. While the IARC working group concluded there was sufficient evidence in humans for the carcinogenicity of inhaled crystalline silica in the form of quartz or crystobalite, it noted that carcinogenicity in humans was not detected in all circumstances studied. Nausea may result from accidental ingestion. May cause cancer. Wash thoroughly with water.
Kaolin is a stable material under ordinary conditions.
If contaminated, collect in suitable containers for disposal. Use appropriate method to avoid creating dust. Avoid breathing dust. Local exhaust required for dust removal. Avoid creating dust in closed areas.