Health / Dentistry / Toxicity: The adverse reactions (dose-response time relationships) of tissues to selected foreign substances resulting in unacceptable in-vivo interactions. The toxicity can be at the local or systemic level depending upon the amount, rate of release and specific type of substance available to the tissues.
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Business / Agriculture / Dermal Toxicity: The ability of a pesticide or other chemical to poison people or animals via skin contact. Many organophosphate pesticides exhibit high dermal toxicity. MORE
Business / Agriculture / Acute Toxicity: The ability of a substance to cause harmful effects soon after a single exposure or dose. Also, any severe poisonous effect resulting from a single short-term exposure to a toxic substance. See also c MORE
Business / Agriculture / Chronic Toxicity: The capacity of a substance to cause long-term or delayed adverse health effects. For example, a cancer resulting from exposure to a carcinogen may not appear for years or decades. MORE
Business / Agriculture / Oral Toxicity: Ability of a chemical to cause injury when ingested by mouth. MORE
Science / Periodic Table of Elements / Protactinium (Pa): Atomic number: 91, Atomic mass: 231.0359 g.mol -1, Electronegativity: 1.5, Density: 15.37 g.cm-3 at 20?°C, Melting point: 1600 ?°C, Boiling point: unknown, Vanderwaals radius: unknown, Ionic radius: MORE
Health / First Aid / Material Safety Data Sheet (MSDS): Any sheet that provides both workers and emergency personnel with information and procedures for handling or working with a particular substance (for example, chemical). MSDS's include information on MORE