Hydrofluoric acidformula

Hydrofluoric acid is a colorless liquid that has a strong irritating odor. It is used to etch and polish glass; clean surfaces such as stone, brick, and marble; and make pesticides, plastics, and fuels. HF is also used in cleaners and wax removers to clean farm equipment, spoke wheels, and walls inside drive-through car washes.

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Hydrofluoric acid

In this video, I'll explain how you can change the batteries of the Oculus Quest 2 controllers and which batteries to use. A step by step guide that shows you the process. 1. Slide the controller cover, the one on the opposite side of the grip button. 2. Take the empty AA battery out 3. Put the new/charged AA battery in with the minus/flat ('—') side facing toward the upper side of the controller, and slide it in. 4. Slider the cover back gently until you hear a click 5. Do the same to the other controller

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HF is dangerous because it is easily absorbed by unprotected skin. HF can cause severe burns, which are painful and slow to heal. If you get HF on your skin, you may not be aware of pain or burning until hours after the exposure. HF, even at low concentrations, can be hazardous.