How to treat skin corrosion by sodium hydroxide?
We use a lot of chemicals [&hellip;]



Before you start to use potentially hazardous compounds and products, get their Material Safety Data Sheets (MSDS) and read them.
Learn about storage, handling, disposal and emergency measures in case of


eye contact
skin contact
inhalation



For a $50\%$ sodium hydroxide solution, a typical MSDS looks like this and states:


  Skin Contact:
  
  In case of contact, immediately flush skin with plenty of water for at least $15$ minutes while removing contaminated clothing and shoes. Cover the irritated skin with an emollient. Cold water may be used. Wash clothing before reuse. Thoroughly clean shoes before reuse. Get medical attention immediately.


Forget about the ammonia! Use lots of water!