Potassium fluoride,anhydrous
           Potassium fluoride,extra pure
           Potassium fluoride,Granular
           Silicon Dioxide
           Hydrofluoric acid
           Synthetic Cryolite
           Potassium Fluoaluminate
           Ammonium bifluoride
           Potassium Bifluoride
           Aluminium fluoride
           Sodium fluoride
           Potassium Fluorosilicate
           Fluorosilicic Acid
           Sodium silicofluoride
           Potassium Hydroxide Flakes
           Magnesium Fluoride
           Magnesium fluorosilicate
           Barium Fluoride
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Users have obligations to themselves and others. They must have done a risk assessment taking account of the substances that they are using, their intrinsic potential for causing harm, the quantities, concentrations and what they are doing with them. This should have resulted in measures to minimise the probability of anyone being harmed by the work. For Hydrofluoric acid these will be principally measures to reduce the probability of exposure by inhalation and skin contact.

These are likely to include:

Working in a fume cupboard,

The use of spill trays, 

Visors or goggles to minimise the probability of eye contact,

Gloves that are impervious to Hydrofluoric acid,

Protective clothing, which could include aprons where concentrated solutions are used, or where decanting is taking place, Stressing the importance of good housekeeping, and not leaving solutions in unmarked containers, Stressing the importance of mopping up, so as not to leave HF on surfaces. In addition the Users should have consulted the HF trained first aider prior to commencing work, have a contingency plan in the event of accident, to include the summoning of a First Aider and the initial treatment (e.g. washing, use of calcium gluconate gel). They should have a stock of calcium gluconate, in date, and provision for washing (e.g. a hose and eyewash). They should also have a procedure for dealing with spillages, with the materials for dealing with the release readily to hand.

It is suggested that you, as First Aiders, familiarise yourselves with the areas where HF is used and you are likely to be called, and ask questions. While First Aiders have no safety management role, you can ask reasonable questions aimed at discovering the extent of the dangers that you might face. Speak to the Department DSO if there are any unresolved concerns that you have. The users have a specific duty of care to you, the First Aider.

Although Hydrofluoric acid is a weak acid, but it is highly corrosive, it can penetrate human skin contact, causing tissue necrosis, or even death. But the danger lies in a low concentration of hydrofluoric acid and does not cause pain immediately, it is often overlooked and delayed treatment. Even schools use with 20% of the low concentration of hydrofluoric acid, the same deadly risk. Hydrofluoric acid is listed as hazardous chemicals control list, this high-risk toxic materials should never appear in high school laboratories, will point to the problem of students passing the buck. And the school is not only not the basic protective measures, post-processing is also a lack of knowledge of chemistry, delay optimal treatment time students. Long-term use of hydrofluoric acid-faire school education sector to do the experiment should also be held supervisory responsibility.