Talc, aluminum silicates, vermiculite, asbestos, kaolin, alumina, diatomaceous earth, and sand
Chronic exposure to clay, dust, or powder may cause skin irritation, lung infections (asbestosis, silicosis), and cancer.
Mixtures of silica, fluxes, and colorants for finishing or coloring clay
Mixtures may contain heavy metals like arsenic, lead, uranium, chromium VI, lithium, beryllium, nickel, barium, cobalt, antimony, barium, soda ash, vanadium, potassium carbonate, feldspars, fluorspar and solvents.
Precautions/Prevention - Do not mix different glazes which may cause an unsafe product; if unsure, do not mix. Ensure all finished wares do not leach toxic metals. Use tools with all safety precautions.
Kiln emissions include chlorine, fluorine, metallic vapor, carbon monoxide, and ozone, which may be inhaled or burn skin, causing injury. Eye exposure by heating ceramic materials to temperatures that cause clay to glow emits infrared radiation.
Always use kilns in areas equipped with good ventilation.
Appropriate clothing, gloves, and infrared goggles must be worn.
Salt kilns generate hydrogen chloride gas, which is toxic if inhaled. Hydrogen chloride gas may combine with water vapor to form hydrochloric acid, which are corrosive to the skin.
Use ventilation hood in good working order if working with sodium chloride. Seek medical attention if exposure is suspected.
Smoke and carbon monoxide formed during the Raku process are an inhalation hazard.
Perform Raku firing outdoors. Avoid using sawdust from wood treated with preservatives or pesticides.
Risk Management Services
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Denton, Texas 76203
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