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Safety Information
Department of Chemistry
University of Idaho
First Aid Procedures
for Hydrofluoric Acid Exposure
Notes:
Hydrofluoric acid burns
may not be immediately painful or visible; symptoms may be delayed 8
hours or longer. The fluoride ion readily penetrates the skin causing
destruction of deep tissue layers and bone and it is important to get
medical attention if exposed.
Calcium gluconate is not
approved by the U.S. Food and Drug Administration, but it is typically
recommended in Material Safety Data Sheets (MSDS) as a first aid measure
for hydrofluoric acid exposure. It provides a substitute calcium source
so that bone tissue does not act as the calcium supply. A solution of
0.2% iced aqueous Hyamine 1622 or 0.13% iced aqueous Zephiran Chloride
are other options. If you use HF, be sure to read the MSDS first.
Tubes of 2.5% calcium
gluconate topical gel are located in first aid kits on all four floors
and is also available for sale in ChemStores.
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