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PHOSPHORUS ACID CRYSTALS EXTRA PURE Why You Should STOP Eating Pumpkin Seeds NOW! | Dr. Steven Gundry Hazard class: Acute toxicity, oral (Category 4). Harmful if swallowed (H302). Do not eat, drink or smoke when using this product (P270). Safety Data Sheet: Phosphorous acid The Alarming Signs Your Body Needs Trace Minerals Pure sulfuric acid does not exist naturally on Earth due to its strong affinity to water vapor; it is hygroscopic and readily absorbs ...