<Table> <Tr> <Th colspan="2"> Instability / reactivity ( yellow ) </Th> </Tr> <Tr> <Th> 0 </Th> <Td> Normally stable , even under fire exposure conditions , and is not reactive with water ( e.g. helium , N ) </Td> </Tr> <Tr> <Th> </Th> <Td> Normally stable , but can become unstable at elevated temperatures and pressures ( e.g. propene ) </Td> </Tr> <Tr> <Th> </Th> <Td> Undergoes violent chemical change at elevated temperatures and pressures , reacts violently with water , or may form explosive mixtures with water ( e.g. white phosphorus , potassium , sodium ) </Td> </Tr> <Tr> <Th> </Th> <Td> Capable of detonation or explosive decomposition but requires a strong initiating source , must be heated under confinement before initiation , reacts explosively with water , or will detonate if severely shocked ( e.g. ammonium nitrate , caesium , hydrogen peroxide ) </Td> </Tr> <Tr> <Th> </Th> <Td> Readily capable of detonation or explosive decomposition at normal temperatures and pressures ( e.g. nitroglycerin , chlorine dioxide , nitrogen triiodide , chlorine trifluoride ) </Td> </Tr> </Table>
<Table> <Tr> <Th colspan="2"> Instability / reactivity ( yellow ) </Th> </Tr> <Tr> <Th> 0 </Th> <Td> Normally stable , even under fire exposure conditions , and is not reactive with water ( e.g. helium , N ) </Td> </Tr> <Tr> <Th> </Th> <Td> Normally stable , but can become unstable at elevated temperatures and pressures ( e.g. propene ) </Td> </Tr> <Tr> <Th> </Th> <Td> Undergoes violent chemical change at elevated temperatures and pressures , reacts violently with water , or may form explosive mixtures with water ( e.g. white phosphorus , potassium , sodium ) </Td> </Tr> <Tr> <Th> </Th> <Td> Capable of detonation or explosive decomposition but requires a strong initiating source , must be heated under confinement before initiation , reacts explosively with water , or will detonate if severely shocked ( e.g. ammonium nitrate , caesium , hydrogen peroxide ) </Td> </Tr> <Tr> <Th> </Th> <Td> Readily capable of detonation or explosive decomposition at normal temperatures and pressures ( e.g. nitroglycerin , chlorine dioxide , nitrogen triiodide , chlorine trifluoride ) </Td> </Tr> </Table>
in the nfpa 704 system a 4 in the reactivity diamond indicates what type of hazard
in the nfpa 704 system a 4 in the reactivity diamond indicates what type of hazard
Readily capable of detonation or explosive decomposition at normal temperatures and pressures ( e.g. nitroglycerin , chlorine dioxide , nitrogen triiodide , chlorine trifluoride )
Readily capable of detonation or explosive decomposition at normal temperatures and pressures ( e.g. nitroglycerin , chlorine dioxide , nitrogen triiodide , chlorine trifluoride )