Calcined diatomaceous earth is a porous inorganic material with large specific surface area, widely used as filter aid, adsorbent and carrier across multiple industries. In chemical, pharmaceutical, food and beverage industries, it is primarily applied for solid-liquid filtration to remove fine suspended particles, colloids and residual impurities, effectively improving liquid clarity and filtration efficiency. It acts as an excellent supporting medium for column chromatography and thin-layer chromatography in laboratory analysis and organic separation. It also serves as a carrier for catalysts, agrochemicals and essence components to enhance dispersion stability and service life. In oil processing, it is used for decolorization, deodorization and purification of vegetable oil and industrial oil. Besides, it can be used as anti-caking agent, thermal insulation filler and polishing agent. With stable chemical properties and superior porous structure, it has become a conventional auxiliary material in fine chemical production and laboratory research.

This product is labeled GHS07 Warning. The main hazards come from inhalable fine dust, which may cause irritation to respiratory tract, skin and eyes. This substance mainly enters human body through inhalation of dust, and occasional skin or eye contact. Direct skin contact with dry powder will remove surface grease, resulting in dryness, tightness and mild irritation after long-term exposure. When dust enters eyes, it will cause foreign body sensation, redness, tearing and conjunctival irritation. Long-term or repeated inhalation of large amounts of dust will irritate nasal cavity, throat and bronchus, triggering cough, pharyngeal discomfort and chest tightness. Continuous high-dose inhalation may bring potential damage to respiratory organs. Accidental ingestion of a small quantity will not cause obvious acute poisoning symptoms, but may lead to mild abdominal distension and gastrointestinal discomfort.

All operations shall be conducted in well-ventilated spaces, and dust generation should be controlled strictly. Operators need to wear dust-proof masks, splash-proof safety goggles and nitrile gloves to block dust exposure. In case of skin contact, wash the affected skin thoroughly with running water and soap. If dust gets into eyes, flush continuously with plenty of clean water for no less than 15 minutes and seek medical treatment if discomfort remains. Once inhaled excessive dust, move to fresh air immediately and rest. After accidental ingestion, rinse mouth with clean water and do not induce vomiting. Keep the product sealed and stored in dry environment, away from hydrofluoric acid and strong alkaline substances. This material is not classified as dangerous goods for transportation. Waste and leftover materials shall be disposed of in accordance with local solid waste regulations to prevent excessive dust from polluting the surrounding environment.