what is the ph of the hydrofluoric acid solution prior to adding sodium fluoride? This is a topic that many people are looking for. cfiva.org is a channel providing useful information about learning, life, digital marketing and online courses …. it will help you have an overview and solid multi-faceted knowledge . Today, cfiva.org would like to introduce to you Hydrofluoric Acid Safety. Following along are instructions in the video below:
Acid is a dangerously corrosive and toxic chemical. That is clear and colorless similar to to water this video shows university laboratory personnel how to safely work with hydrofluoric acid hf the hydrofluoric acid liquid and vapor causes severe burns that may not be immediately visible or feel painful the chemical is very toxic when in contact with skin inhaled or if swallowed hydrofluoric acid is corrosive causing burns tissue necrosis and can be fatal before beginning made sure to complete the appropriate laboratory safety training before working in the laboratory. Then review written documents to inform yourself of the hazards of the chemicals youre working with this includes a laboratory safety manual and north chemical hygiene plan.
The safety data sheets and the standard operating procedure is for your work orient yourself to the laboratory by locating and knowing how to use the new your emergency equipment. Ahead of time. Such as emergency exit.
The safety shower eyewash station. First aid kit fire extinguisher and fire alarm pull station in case. You need to evacuate the building have a chemical spill kit nearby that contains sodium bicarbonate for neutralization and calcium glutamate gel.
Which youll need in case of accidental skin exposure use the buddy system. That is arranged for a partner to work with you post signs in designated areas to communicate appropriate warnings and precautions. And notify others not just those working with you that youre working with a hazardous chemical make sure to label containers with the correct chemical name.
Abbreviations are not acceptable. When youre ready put on the proper personal protective equipment. This includes long pants and closed toed shoes long sleeves or a laboratory coat.
Nitrile gloves safety glasses with side shields or safety goggles and a face shield. Especially. If theres a potential for splashes in addition.
Where pvc or butyl gloves over your nitrile gloves and an apron. Those waterproof or a tyvek suit. The idea is to put as much between you and the chemical as possible prepare your supplies and equipment ahead of time and always work in a fume hood whenever possible practice a dry run with a less hazardous chemical or water in your experiment.
When youre ready to begin make sure to measure the amount of chemical that is under the permissible exposure limit remember to dilute acids by adding it to water. Never the reverse to avoid the potential to cause splattering. All corrosives should be mixed slowly in case of emergencies have a buddy call 911 and stay on the phone for instructions if you accidentally spill hydrofluoric acid on your skin immediately flush the affected area with water for at least 15 minutes.
Then apply calcium gluttony gel to the burn skin only massaging it into the affected area if you accidentally hydrofluoric acid on your eyes use an eyewash for at least 15 minutes then follow campus procedures for injuries and medical treatment and always report the injury to a supervisor. When youre finished store in a tightly closed container place the container below eye level on a non corroding shelf preferably in a corrosive or acid storage cabinet remember to separate acids from bases and segregate oxidizing acids from flammables also double check that all containers are labeled. Afterward ensure that you decontaminate the work surface thoroughly rinse.
All equipment and measuring containers collecting the first rin. See it as hazardous waste. Then wipe down the word gary to prevent chemical residue.
Collect unused hydrofluoric acid as hazardous waste in a labeled plastic container following the procedures from environmental health and safety practice good personal hygiene by decontaminating affected clothing. Removing personal protective equipment and washing your hands for at least 20 seconds under in warm soapy water as a reminder remember to know the hazards of the chemicals. Youre working with prepare your work area including locating emergency and safety equipment wearing crystal protective equipment responding potli to exposures and cautiously cleaning up spills without delay for more information please contact environmental health and safety .
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