HF Safety

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1. Hydrofluoric acid (HF) is a weaker acid than hydrochloric and therefore less of a hazard. a) True b) False

2. When pouring concentrated HF, use PPE similar to other acids (Lab coat, gloves, safety glasses). a) True b) False

3. Hydrofluoric acid is not only corrosive, but also toxic. a) True b) False

4. Manipulating concentrated HF should be done in a fume hood. a) True b) False

5. Treatment of an HF burn on the skin should begin with flushing with water while removing contaminated clothing. How long should the area be flushed with water. a) 1 minute b) 5 minutes c) 15 minutes d) 1 hour

6. After flushing a burn to the skin with water, what should be done next? a) Dry the area carefully and apply a bandage. b) Apply an antibiotic ointment to the burn c) Massage in 2.5% calcium gluconate gel while wearing a glove d) If there is no pain, no treatment other than a water rinse is needed

7. An ambulance should be called (911 or 9-911 from PRIME Lab building) only if: a) the burn covers 50% or more of the body b) the burn is painful c) for any HF exposure, no matter how small

8. Small HF burns can cause a depletion of calcium in the body resulting is death. a) True b) False

9. If HF gets into an eye, you must immediately massage 2.5% calcium gluconate gel into the eye. a) True b) False

10. If HF in ingested, you should drink large amounts of water followed my 12 ounces of milk of magnesia, and call for medical assistance. a) True b) False