a56d19bc_A_Practical_Guide_to_First_Aid__Chemical
[Route of Exposure] Skin Contact Eye contact Ingestion Inhalation [Suggested Recommendations] Hydrofluoric acid strongly binds calcium and magnesium producing severe toxicity. Inhalation: In addition to standard first-aid, trained personnel should administer a nebulized solution of 2.5% calcium gluconate with oxygen. Skin Contact: Avoid direct contact. Wear chemical protective clothing if necessary. Take off immediately contaminated clothing, shoes and leather goods (e.g. watchbands, belts). As quickly as possible, flush with lukewarm, gently flowing water until one of the following solutions is available. a. Begin soaking the affected areas in iced 0.13% benzalkonium chloride (Zephiran¨) solution. Use ice cubes, not shaved ice, to prevent frostbite. If immersion is not practical, towels should be soaked with iced 0.13% benzalkonium chloride (Zephiran¨) solutions and used as compresses for the burned area. Compresses should be changed every 2-4 minutes. Benzalkonium chloride (Zephiran¨) soaks or compresses should be continued until pain is relieved or until medical treatment is available. b. Wearing chemical protective gloves, start massaging 2.5% calcium gluconate gel into the burn site. Apply gel frequently and massage continuously until pain and/or redness disappear or medical attention is available. If benzalkonium chloride (Zephiran¨) or calcium gluconate gel is not available, water rinsing must continue until medical treatment is available. Double bag, seal, label and leave contaminated clothing, shoes and leather goods at the scene for safe disposal. [Chemical] 
Hydrofluoric acid
CCOHS: Products & Services: The MSDS - A Practical Guide to First Aid
Chemical