Overgangsmetallerne har delvist fyldte d-underskaller og er i gruppe 4 til 11 i det periodiske system. De er hårde, meget ledende, har flere oxidationstilstande, udviser katalytisk aktivitet og kan danne farvede og/eller paramagnetiske forbindelser.
GHS P Statement P273-P201-P309+P311-P501a Avoid release to the environment. Obtain special instructions before use. IF exposed or if you feel unwell: Call a POISON CENTER or doctor/physician. Dispose of contents/container in accordance with local/regional/national/international regulations.
Sundhedsfare 2
GHS H Statement H334-H350-H360-H372-H341-H302-H332-H315-H317 May cause allergy or asthma symptoms or breathing difficulties if inhaled. May cause cancer. May damage fertility or the unborn child. Causes damage to organs through prolonged or repeated exposure. Suspected of causing genetic defects. Harmful if swallowed. Harmful if inhaled. Causes skin irritation. May cause an allergic skin reaction.