Cadmium Elemental Symbol

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Cadmium Cadmium Cadmio Cádmio Cadmio Kadmium

Cadmium(Cd) atomic and molecular weight, atomic number and elemental symbolCadmium is a Block D, Group 12, Period 5 element. Cadmium Bohr ModelElemental CadmiumThe number of electrons in each of Cadmium's shells is 2, 8, 18, 18, 2 and its electronic configuration is [Kr] 4d10 5s2. The cadmium atom has a radius of and its Van der Waals radius is In its elemental form, CAS 7440-43-9, cadmium has a silvery bluish gray metallic appearance. Cadmium makes up about 0.1 ppm of the earth's crust. No significant deposits of cadmium containing ores are known, however, it is sometimes found in its metallic form. It is a common impurity in zinc ores and is isolated during the production of zinc. Cadmium was first discovered by Karl Samuel Leberecht Hermann and Friedrich Stromeyer in 1817. The name Cadmium originates from the Latin word 'cadmia' and the Greek word 'kadmeia'. See Cadmium research below.

Cadmium is a key component in battery production, it is present in cadmium pigments, coatings, and it's commonly used in electroplating. Cadmium oxide is used in phosphors for television picture tubes. Cadmium sulfide (CdS) is used as a photoconductive surface coating for photocopier drums. Cadmium is also used to control neutrons in nuclear fission. Cadmium in glass and ceramic glazes create a distinctive cadmium yellow. High Purity (99.99999%) Cadmium (Cd)Sputtering TargetCadmium is available as metal and compounds with purities from 99% to 99.999% (ACS grade to ultra-high purity). Elemental or metallic forms include pellets, rod, wire and granules for evaporation source material purposes. High Purity (99.999%) Cadmium Oxide (CdO) PowderCadmium nanoparticles and nanopowders provide ultra-high surface area which nanotechnology research and recent experiments demonstrate function to create new and unique properties and benefits. Oxides are available in powder and dense pellet form for such uses as optical coating and thin film applications. Oxides tend to be insoluble. Fluorides are another insoluble form for uses in which oxygen is undesirable such as metallurgy, chemical and physical vapor deposition and in some optical coatings. Cadmium is also available in soluble forms including chlorides, nitrates and acetates. These compounds can be manufactured as solutions at specified stoichiometries.

Cadmium and its compounds are toxic. Safety data for Cadmium and its compounds can vary widely depending on the form. For potential hazard information, toxicity, and road, sea and air transportation limitations, such as DOT Hazard Class, DOT Number, EU Number, NFPA Health rating and RTECS Class, please see the specific material or compound referenced in the Products tab below.

  • Properties
  • Safety Data
  • Products
  • Research
  • Isotopes
  • Other Elements

Cadmium Properties

Symbol: Cd Melting Point: 594.22 K, 321.07 °C, 609.93 °F
Atomic Number: 48 Boiling Point: 1040 K, 767 °C, 1413 °F
Atomic Weight: 112.411 Density: 8.65 g·cm−3
Element Category: transition metal Liquid Density @ Melting Point: 7.996 g·cm−3
Group, Period, Block: 12, 5, d Specific Heat: 0.23 (kJ/kg K)
    Heat of Vaporization 100 kJ mol-1
CHEMICAL STRUCTURE Heat of Fusion 6.11 kJ mol-1
Electrons: 48 Thermal Conductivity: 96.6 W·m−1·K−1
Protons: 48 Thermal Expansion: (25 °C) 30.8 µm·m−1·K−1
Neutrons: 64 Electrical Resistivity: (22 °C) 72.7 nΩ·m
Electron Configuration: [Kr] 4d105s2 Electronegativity: 1.69 (Pauling scale)
Atomic Radius: 151 pm Tensile Strength: N/A
Covalent Radius: 144±9 pm Molar Heat Capacity: 26.020 J·mol−1·K−1
Van der Waals radius: Young's Modulus: 50 GPa
Oxidation States: 2, 1 (mildly basic oxide) Shear Modulus: 19 GPa
Phase: Solid Bulk Modulus: 42 GPa
Crystal Structure: hexagonal close-packed Poisson Ratio: 0.30
Magnetic Ordering: diamagnetic Mohs Hardness: 2.0
1st Ionization Energy: 867.78 kJ mol-1 Vickers Hardness: N/A
2nd Ionization Energy: 1631.42 kJ mol-1 Brinell Hardness: 203 MPa
3rd Ionization Energy: 3616.30 kJ mol-1 Speed of Sound: (20 °C) 2310 m·s−1
CAS Number: 7440-43-9 Abundance in typical human body, by weight: 700 ppb
ChemSpider ID: 22410 Abundance in typical human body, by atom: 39 ppb
PubChem CID: 23973 Abundance in universe, by weight: 2 ppb
MDL Number: MFCD00010914 Abundance in universe, by atom: 0.02 ppb
EC Number: 231-152-8 Discovered By: Karl Samuel Leberecht Hermann and Friedrich Stromeyer
Beilstein Number: 8137359 Discovery Date: 1817
SMILES Identifier: [Cd]  
InChI Identifier: InChI=1S/Cd Other Names: Cadmio, Cádmio, Kadmium,

Health, Safety & Transportation Information for Cadmium

Material Safety Data Sheet MSDS
Signal Word Danger
Hazard Statements H330-H341-H350-H361fd-H372-H410
Hazard Codes T+,N
Risk Codes 45-26-48/23/25-50/53-62-63-68
Safety Precautions 53-45-60-61
RTECS Number EU9800000
Transport Information UN 2570 6.1/PG 1
WGK Germany 3
Globally Harmonized System of
Classification and Labelling (GHS)
Environment-Hazardous to the aquatic environment Health Hazard Skull and Crossbones-Acute Toxicity   

Cadmium Products

Metal Forms  •  Compounds  •  Alloys  •  Oxide Forms  •  Organometallic Compounds
Sputtering Targets  •  Nanomaterials  •  Semiconductor Materials •  Isotopes


Bismuth Indium Cadmium Alloy
Bismuth Lead Cadmium Alloy
Bismuth Lead Cadmium Indium Alloy
Bismuth Lead Cadmium Indium Tin Alloy
Bismuth Lead Cadmium Tin Alloy
Bismuth Lead Indium Tin Cadmium Alloy
Bismuth Lead Tin Cadmium Alloy
Bismuth Lead Tin Cadmium Indium Alloy
Bismuth Lead Tin Cadmium Ingot
Bismuth Cadmium
Bismuth Tin Cadmium
Cadmium Zinc Alloy
Indium Bismuth Cadmium Alloy
Indium Cadmium Alloy
Indium Tin Cadmium Alloy
Indium Tin Lead Cadmium Alloy
Lead Bismuth Tin Cadmium Alloy
Lead Cadmium Alloy
Mercury Cadmium Telluride Granules
Mercury Cadmium Telluride Powder
Mercury Cadmium Telluride Lump
Silver Cadmium Zinc Copper Alloy Particles
Silver Cadmium Zinc Copper Alloy Powder
Tin Cadmium Alloy
Tin Lead Cadmium
Woods Metal Stick
Zinc Cadmium Tellurium Granule
Zinc Cadmium Tellurium Lump
Zinc Cadmium Tellurium Powder


Cadmium Nanoprisms
Cadmium Nanorods
Cadmium Oxide Nanopowder
Cadmium Selenide Hollow Nanospheres
Cadmium Selenide Nanotubes
Cadmium Selenide Quantum Dots
Cadmium Telluride Quantum Dots
CdSe/ZnS Quantum Dots
ZnCdSe/ZnS Sulfide Quantum Dots


Cadmium-106 Isotope
Cadmium-106 Oxide Isotope
Cadmium-108 Isotope
Cadmium-108 Oxide Isotope
Cadmium-110 Oxide Isotope
Cadmium-111 Chloride Isotope
Cadmium-111 Oxide Isotope
Cadmium-112 Isotope
Cadmium-112 Oxide Isotope
Cadmium-113 Chloride Isotope
Cadmium-113 Isotope
Cadmium-113 Oxide Isotope
Cadmium-114 Oxide Isotope
Cadmium-116 Oxide Isotope

Sputtering Targets

Cadmium Antimonide Sputtering Target
Cadmium Arsenide Sputtering Target
Cadmium Fluoride Sputtering Target
Cadmium Oxide Rotatable Sputtering Target
Cadmium Oxide Sputtering Target
Cadmium Phosphide Sputtering Target
Cadmium Rotatable Sputtering Target
Cadmium Selenide Sputtering Target
Cadmium Sputtering Target
Cadmium Sulfide Sputtering Target
Cadmium Telluride Sputtering Target
Cadmium Tin Sputtering Target
Cadmium Zinc Sulfide Sputtering Target

Recent Research & Development for Cadmium

  • Impact of dietary cadmium sulphide nanoparticles on Danio rerio zebrafish at very low contamination pressure. Ladhar C, Geffroy B, Cambier S, Treguer-Delapierre M, Durand E, Brèthes D, Bourdineaud JP. Nanotoxicology. 2014.
  • Vaccinium corymbosum L. (blueberry) extracts exhibit protective action against cadmium toxicity in Saccharomyces cerevisiae cells. Oprea E, Ruta LL, Nicolau I, Popa CV, Neagoe AD, Farcasanu IC. Food Chem. 2014.
  • Calcium and potassium content in beef: Influences on tenderness and associations with molecular markers in Nellore cattle. Meat Sci. 2014 date:2013/09/03 | first author:Tizioto PC.
  • Analysis of lead in beverage juice using mesoporous cadmium phosphate as a solid phase adsorbent. Yin P, Qu R, Liu X, Dong X, Xu Q. Food Chem. 2014 Apr.
  • Plant Cell Responses to Cadmium and Zinc. Martinka, M Vaculík, A Lux - Applied Plant Cell Biology, 2014 - Springer.
  • Contents of cadmium, mercury and lead in fish from the Atlantic sea (Morocco) determined by atomic absorption spectrometry. Chahid A, Hilali M, Benlhachimi A, Bouzid T. Food Chem. 2014
  • Lipoteichoic acid from Staphylococcus aureus directly affects cardiomyocyte contractility and calcium transients. Mol Immunol. 2013 date:2013/08/13 | first author:Mutig N
  • Targeted analysis of polyphenol metabolism during development of hop (Humulus lupulus L.) cones following treatment with prohexadione-calcium. Food Chem. 2014. | first author:Kavalier AR.
  • Combined effects of potassium lactate and calcium ascorbate as sodium chloride substitutes on the physicochemical and sensory characteristics of low-sodium frankfurter sausage. Meat Sci. 2014 date:2013/07/31 | first author:Choi YM
  • Optical Calcium Imaging Using DNA-Encoded Fluorescence Sensors in Transgenic Fruit Flies, Drosophila melanogaster. Methods Mol Biol. 2014 date:2013/09/21 | first author:Dipt S
  • Tendon-to-bone healing using an injectable calcium phosphate cement combined with bone xenograft/BMP composite. Biomaterials. 2013 | first author:Weimin P
  • Creation of reduced fat foods: influence of calcium-induced droplet aggregation on microstructure and rheology of mixed food dispersions. Food Chem. 2013 date:2013/09/03 | first author:Wu BC
  • Enhanced osteoporotic bone regeneration by strontium-substituted calcium silicate bioactive ceramics. Biomaterials. 2013 date:2013/10/08 | first author:Lin K
  • RhBMP-2-loaded calcium silicate/calcium phosphate cement scaffold with hierarchically porous structure for enhanced bone tissue regeneration. Biomaterials. 2013 date:2013/09/21 | first author:Zhang J
  • Umbilical cord and bone marrow mesenchymal stem cell seeding on macroporous calcium phosphate for bone regeneration in rat cranial defects. Biomaterials. 2013 | first author:Chen W
  • Anticancer drug delivery system based on calcium carbonate particles loaded with a photosensitizer. Biophys Chem. 2013 | first author:Svenskaya Y
  • Repair of rabbit segmental femoral defects by using a combination of tetrapod-shaped calcium phosphate granules and basic fibroblast growth factor-binding ion complex gel. Biomaterials. | first author:Honnami M.
  • Reversible inhibitors of regulators of G-protein signaling identified in a high-throughput cell-based calcium signaling assay. Cell Signal. 2013 date:2013/09/18 | first author:Storaska AJ
  • Preparation of biomorphic porous calcium titanate and its application for preconcentration of nickel in water and food samples. Mater Sci Eng C Mater Biol Appl. 2013 date:2013/10/08 | first author:Zhang D
  • Homer1 knockdown protects dopamine neurons through regulating calcium homeostasis in an in vitro model of Parkinson's disease. Cell Signal. 2013 date:2013/09/17 | first author:Chen T
  • Injectable calcium phosphate-alginate-chitosan microencapsulated MC3T3-E1 cell paste for bone tissue engineering in vivo. Mater Sci Eng C Mater Biol Appl. | first author:Qiao P

Cadmium Isotopes

Naturally occurring cadmium (Cd) has six stable isotopes: 106Cd, 108Cd, 110Cd, 111Cd, 112Cd, and 114Cd.

Nuclide Symbol Isotopic Mass Half-Life Nuclear Spin
106Cd 105.906459 Observationally Stable 0+
108Cd 107.904184 Observationally Stable 0+
110Cd 109.9030021 Stable 0+
111Cd 110.9041781 Stable 1/2+
112Cd 111.9027578 Stable 0+
114Cd 113.9033585 Observationally Stable 0+