What is the best practice for preparing a 50% Caustic Soda solution from flakes?

The key is safety and control due to the highly exothermic reaction.

•  Use PPE: Always wear a face shield, chemical goggles, gloves, and an apron.
• Correct Order: ALWAYS add flakes slowly to water, never vice versa, to prevent a violent eruption.
• Control Heat: Use cool water and stir continuously to dissipate heat and prevent “hot spots.”