Specification
Description
Cadmium is a silver-white blue tinged lustrous metallic solid. (NTP, 1992);DryPowder; OtherSolid; PelletsLargeCrystals;SOFT BLUE-WHITE METAL LUMPS OR GREY POWDER. MALLEABLE. TURNS BRITTLE ON EXPOSURE TO 80 °C. TARNISHES ON EXPOSURE TO MOIST AIR.;Silver-white, blue-tinged lustrous, odorless solid.;Metal: Silver-white, blue-tinged lustrous, odorless solid.
InChI Key
BDOSMKKIYDKNTQ-UHFFFAOYSA-N
Boiling Point
1409 °F at 760 mm Hg (NTP, 1992);767 °C;765 °C;1409°F;1409°F
Melting Point
609.6 °F (NTP, 1992);32.0691 °C;321 °C;610°F;610°F
Density
8.642 (NTP, 1992);8.69 g/cu cm at 25 °C;8.6 g/cm³;8.65 (metal);8.65 (metal)
Solubility
Insoluble (NIOSH, 2016);Insoluble in water;Solubility in water: none;Insoluble
Autoignition Temperature
250 °C, (482 F) layer /Cadmium metal dust/;250 °C (cadmium metal dust)
Color/Form
Silvery-white metal;Soft, bluish-white metal;Silver-white, blue-tinged, lustrous metal; distorted hexagonal close-packed structure; easily cut with a knife; available in the form of bars, sheets or wire or a gray, granular powder;Hexagonal, ductile crystals or soft, silver-white, lustrous metal
Corrosivity
Corrosion resistance poor in industrial atmosphere
Covalently-Bonded Unit Count
1
Exact Mass
113.903365g/mol
Heat of Vaporization
99.87 kJ/mole at 767 °C (boiling point)
Monoisotopic Mass
113.903365g/mol
Other Experimental
Malleable;VP: 1 Pa at 257 °C (sublimes); 10 Pa at 310 °C (sublimes); 100 Pa at 381 °C; 1 kPa at 472 °C; 10 kPa at 594 °C; 100 kPa at 767 °C;VP: 2.8X10-4 Pa at 400 K; 18.3 Pa at 600 K;Specific heat at constant pressure (25 °C): 6.22 cal/mole-deg at 25 °C;Mohs hardness 2.0 ... Tarnishes in moist air. Cadmium becomes brittle at 80 °C. High neutron absorber.;The electrical conductivity of cadmium is less than that of silver or copper, but greater than that of iron.;Cadmium (Cd) has two radioisotopes: (109)Cd and (115)Cd.;Slowly oxidized by moist air to form CdO. Electrode potential (aq) Cd/Cd2+ 0.4025 V. Reacts readily with dilute HNO3; reacts slowly with hot HCl; does not react with alkalies. Other reactions similar to those of zinc.;Enthalpy of fusion 6.21 kJ/mol;Specific heat capacity at 25 °C: 0.232 J/g K; molar heat capacity: 26.020 J/mol K;Cadmium Decay Pathways;Table: Natural Isotopes [Table#970];Cadmium Decay Pathways;Table: Artificial Isotopes [Table#971]
Refractive Index
Index of Refraction: 1.8 at 578 nm and 20 °C/D
Stability
Slowly oxidized by moist air to form cadmium oxide.
UN Number
2570;2570;2570;2570
Vapor Pressure
1 mm Hg at 741 °F (NTP, 1992);1 mmHg (741°F);0 mmHg (approx)
