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contains Phosphoric Acid (7664-38-2), Hydrofluoric Acid (7664-39-3) and Oxalic Acid (144-62-7). Harmful if swallowed or inhaled. May cause severe burns which may not be immediately painful or visible. Avoid contact with skin or eyes. First Aid: eyes-flush with water for 15 minutes. External-wash with soap and water. Internal-drink large quantities of water. Call physician. Keep out of reach of children.