<Tr> <Td> NFPA 704 </Td> <Td> 0 0 </Td> </Tr> <Tr> <Td> Flash point </Td> <Td> Non-flammable </Td> </Tr> <Tr> <Td_colspan="2"> Lethal dose or concentration (LD, LC): </Td> </Tr> <Tr> <Td> LD (median dose) </Td> <Td> 8500 mg / kg (rat, oral) </Td> </Tr>

Where does milk of magnesia get its name from