Baaad Chemicals (ヤベー薬 Yabē Kusuri?) is the thirty-third chapter of the Dr. Stone manga.


Kingdom of Science acquires these materials

  • Hydrochloric Acid chapter 33 p5
  • Chlorosulfuric Acid Chapter 33 p6
  • Sodium Hydroxide Chapter 33 p7
  • Amonia Chapter 33 p8

Characters in Order of Appearance


Senku does a "salty pose". chapter 33 p5

Research Element

Water Dripping Machine

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