Mississippi Code
Article 1 - Caustic Poisons
§ 41-29-5. "Dangerous caustic or corrosive substance" defined

The term "dangerous caustic or corrosive substance" means each and all of the acids, alkalis, and substances named below:
Hydrochloric acid and any preparation containing free or chemically unneutralized hydrochloric acid (HCl) in a concentration of ten percent (10%) or more;
Sulphuric acids and any preparation containing free or chemically unneutralized sulphuric acid (H2SO4) in a concentration of ten percent (10%) or more;
Nitric acid or any preparation containing free or chemically unneutralized nitric acid (HNO3) in a concentration of five percent (5%) or more;
Carbolic acid (C6H5OH), otherwise known as phenol, and any preparation containing carbolic acid in a concentration of five percent (5%) or more;
Oxalic acid and any preparation containing free or chemically unneutralized oxalic acid (H2C2O4) in a concentration of ten percent (10%) or more;
Any salt of oxalic acid, other than cerium oxalate, and any preparation containing any such salt in a concentration of ten percent (10%) or more;
Acetic acid or any preparation containing free or chemically unneutralized acetic acid (HC2H3O2) in a concentration of twenty percent (20%) or more;
Hypochlorous acid, either free or combined, and any preparation containing the same in a concentration so as to yield ten percent (10%) or more by weight of available chlorine, excluding calx chlorinata, bleaching powder, and chloride of lime;
Potassium hydroxide and any preparation containing free or chemically unneutralized potassium hydroxide (KOH), including caustic potash and Vienna paste, in a concentration of ten percent (10%) or more;
Sodium hydroxide and any preparation containing free or chemically unneutralized sodium hydroxide (NaOH), including caustic soda and lye, in a concentration of ten percent (10%) or more;
Silver nitrate, sometimes known as lunar caustic, and any preparation containing silver nitrate (AgNO3) in a concentration of five percent (5%) or more, and
Ammonia water and any preparation yielding free or chemically uncombined ammonia (NH3), including ammonium hydroxide and "hartshorn" in a concentration of five percent (5%) or more.
However, the provisions of this article shall not apply to "white arsenic and sal soda."

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