<Table> <Tr> <Th> Concentration by weight </Th> <Th> Classification </Th> <Th> R - Phrases </Th> </Tr> <Tr> <Td> 10--25% </Td> <Td> Irritant (Xi) </Td> <Td> R36 / 37 / 38 </Td> </Tr> <Tr> <Td>> 25% </Td> <Td> Corrosive (C) </Td> <Td> R34 R37 </Td> </Tr> </Table> <Tr> <Th> Concentration by weight </Th> <Th> Classification </Th> <Th> R - Phrases </Th> </Tr> <Tr> <Td> 10--25% </Td> <Td> Irritant (Xi) </Td> <Td> R36 / 37 / 38 </Td> </Tr> <Tr> <Td>> 25% </Td> <Td> Corrosive (C) </Td> <Td> R34 R37 </Td> </Tr>

Metals that will not react with hydrochloric acid