Pacific Pelican Sodium Thiosulfate (Sodium Hyposulfite) (Na2S2O3*5H2O) is a high-quality chemical compound. This product must be handled with care to ensure safety and efficacy. Avoid contact with eyes, skin, or clothing, and do not inhale vapors or mist. It is crucial to keep water away from the container to prevent a violent reaction. In case of eye contact, rinse thoroughly with running water for 15 minutes, occasionally lifting both the upper and lower eyelids, and seek medical attention immediately. Store the product in a cool, dry place, away from sunlight and heat sources, and always ensure the container is tightly closed to prevent leakage.