Skin and eye exposures to caustic soda in industrial and home environments can cause injury. Read and follow all instructions on the product label to avoid hazards associated with caustic soda.

50% caustic soda solution is corrosive to the skin, and may cause a severe burn, even with a short exposure. Solutions or mists of caustic soda may also be damaging to the eyes, resulting in vision impairment, even blindness. Ingestion of caustic soda can cause chemical burns to the mouth and throat with possible ulceration to the gastrointestinal tract.

If there is a potential exposure to caustic soda solution, immediate first aid is required, including flushing the area with running water, having the exposed person drink plenty of water or milk (do NOT induce vomiting) and contacting a local medical facility or emergency response center for continued treatment.

After extensive testing and more than 100 years of industrial experience with caustic soda, there is no evidence that caustic is a skin sensitizer or is readily absorbed through the skin. It is not a known carcinogen, mutagen, developmental toxicant or reproductive toxicant.