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In this video I evaluate three easytoobtain sources for lowconcentration Hydrofluoric Acid (HF) and use them to etch Silicon Dioxide layers. I also go over the dangers of Hydrofluoric Acid and the differences between it and other acids, such as Sulfuric Acid.

DISCLAIMER: The videos on this channel feature materials, equipment, and activities that may be hazardous. By choosing to replicate or participate in any demonstrated activities, you acknowledge and assume all associated risks. You the viewer are responsible for your own safety. ProjectsInFlight and its creators are not liable for any resulting harm or damages.

Affiliate Links to Chemicals & Tools (I earn small commissions on these links):

Calgonate: https://amzn.to/3sYxvtR
Butyl Gloves: https://amzn.to/3LsDopA
Eyewash: https://amzn.to/3EF9BWT
Face Shield: https://amzn.to/3F0Oa2N
Chemical Goggles: https://amzn.to/3sWjqwZ
Apron: https://amzn.to/48hYZL2
Respirator Mask: https://amzn.to/3PHylEf
Acid Vapor Respirator Cartridge: https://amzn.to/3sYm31n
Whink Rust Remover: https://amzn.to/3rf9RZq
Armour Etch: https://amzn.to/48hoqfE
Porcelain Etch: https://ebay.us/oATP5e
Scribe Tool: https://amzn.to/3Pksrrg
Silicon Wafer (Ptype): https://amzn.to/3PGDgoV
Silicon Wafer (Ntype): https://amzn.to/3rdP8W1

Links to Sources:

SDS Pages:
2% HF SDS: https://www.riccachemical.com/Website...
10% HF SDS: https://www.riccachemical.com/Website...
50% HF SDS: https://www.riccachemical.com/Website...
Sulferic Acid SDS: https://www.riccachemical.com/Website...
Whink Rust Remover SDS:https://web.faa.illinois.edu/app/uplo...
Porcelain Etch SDS: https://www.pulpdent.com/wpcontent/u...
Armour Etch SDS: https://www.richelieu.com/documents/d...

Other Info:
SDS Toxicity Categories: https://www.ilo.org/static/english/pr...
Vapor Pressure: https://www.physics.purdue.edu/primel...
Toxicity: https://www.ncbi.nlm.nih.gov/pmc/arti...
Toxicity: https://ehs.stanford.edu/reference/in....
Toxicity: https://www.cdc.gov/niosh/ershdb/emer...
Dermal: https://www.sciencedirect.com/science...
Chemical Compatibility: https://www.graco.com/content/dam/gra...
Chemical Compatibility: https://at.vwr.com/assetsvc/asset/de_...
Toxicity: https://www.ncbi.nlm.nih.gov/pmc/arti....
Toxicity: https://ehs.unc.edu/wpcontent/upload...
Accident List: https://www.osha.gov/ords/imis/Accide...