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Metals, alloys and elements

Cadmium

Also known as Cadmium, elemental, Colloidal cadmium, Kadmium

CAS 7440-43-9Formula CdMolar mass 112.41 g/molEC 231-152-8
GHS signal word: Danger. Pictograms: Flammable, Acute toxicity (severe), Serious health hazard, Hazardous to the environment 156 suppliers listed Drug substance
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Element with atomic number and standard atomic weight

Key facts

What buyers check first

All properties
Appearance
Silvery-white metal
Melting point
32.1 °C
Boiling point
767 °C
Density
8.69 g/cm³ at 25 °C
Solubility
Insoluble in water
HS code
811269
Category
Metals, alloys and elements
UN number
UN 2570
Illustrative photo, metallic grey powder in a steel drum in a chemical plant
Typical packagingIllustrative packaging image, not the actual product

What is Cadmium?

Plain description, key identifiers and synonyms

Cadmium atom is a zinc group element atom.

Cadmium is a chemical element with symbol Cd and atomic number of 48.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
cadmium
CAS number
7440-43-9 CAS number cross-checkedOther or deprecated CAS: 72172-64-6, 81271-94-5
EC number
231-152-8
Molecular formula
Cd
UNII
00BH33GNGH
MDL number
MFCD00010914
INCI name
CADMIUM (NON-PYROPHORIC)[1]; CADMIUM OXIDE (NON-PYROPHORIC)[2]
InChIKey
BDOSMKKIYDKNTQ-UHFFFAOYSA-N
InChI
InChI=1S/Cd
SMILES (canonical and isomeric)
[Cd]

Synonyms

  • Cadmium, elemental
  • Colloidal cadmium
  • Kadmium
  • Cadmium metal
  • Elemental cadmium
  • Cadmium metallicum
  • C.I. 77180
  • C I 77180
  • Indigestion
  • Dietary Cadmium
  • Cadmium metalllicum
  • cadmium(II) cation
  • Cd
  • Cadmium Atom
  • cadmio
  • Cadmium, mass of 135
  • Cadmium Standard: Cd @ 10 microg/mL in 2% HNO3
  • ICP standard Cadmium 2-5% HNO3 1000 microg/mL
  • Cadmium Standard: Cd @ 1000 microg/mL in 5% HNO3
  • Cadmium Standard: Cd @ 10000 microg/mL in 5% HNO3
  • Cadmium AA Standard: Cd @ 1000 microg/mL in 5% HNO3
  • Cadmium Standard: Cd @ 1000 microg/g in Hydrocarbon Oil
  • Cadmium Standard: Cd @ 5000 microg/g in Hydrocarbon Oil
  • Cadmium element
  • Cadmium pieces
Show all 36 synonyms
  • Atomic Cadmium
  • Element Cadmium
  • Element:Cadmium
  • Cadmium granules
  • Element-Cd
  • Element:Cd
  • Sulfur-Free Cadmium Concentrate: Cd @ approx. 10 wt% in Hydrocarbons
  • Cadmium (atomic)
  • Cadmium (element)
  • Cd (element)
  • Cadmium, p.a.

Physical and chemical properties

Measured values and descriptors computed from the structure

Physical and chemical properties

Measured values, check the supplier specification for your grade

Appearance
Silvery-white metalexp.
Odour
Odorlessexp.
Melting point
32.1 °Cexp.
Boiling point
767 °Cexp.
Density
8.69 g/cm³ at 25 °Cexp.
Autoignition temperature
250 °Cexp.
Solubility
Insoluble in waterexp.
Vapour pressure
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 °Cexp.

Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.

Computed descriptors

Calculated from the structure, useful for screening and formulation

Molecular weight
112.41 g/molcalc.
Exact mass
113.9034 Dacalc.
LogP (octanol/water)
0calc.
Topological polar surface area
0 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
0calc.
Rotatable bonds
0calc.
Heavy atoms
1calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0calc.
Formal charge
0calc.
Stereocentres
0calc.

Calculated for screening. Confirm critical figures with the supplier.

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Danger
GHS02: Flammable
Flammable
GHS06: Acute toxicity (severe)
Acute toxicity (severe)
GHS08: Serious health hazard
Serious health hazard
GHS09: Hazardous to the environment
Hazardous to the environment

Hazard statements

  • H250Catches fire spontaneously if exposed to air.
  • H330Fatal if inhaled.
  • H341Suspected of causing genetic defects.
  • H350May cause cancer.
  • H361fdSuspected of damaging fertility. Suspected of damaging the unborn child.
  • H372Causes damage to organs through prolonged or repeated exposure.
  • H400Very toxic to aquatic life.
  • H410Very toxic to aquatic life with long lasting effects.
Precautionary statements (23)
  • P203Obtain, read and follow all safety instructions before use.
  • P210Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
  • P222Do not allow contact with air.
  • P231Handle and store contents under inert gas.
  • P233Keep container tightly closed.
  • P260Do not breathe dust, fume, gas, mist, vapours or spray.
  • P264Wash skin thoroughly after handling.
  • P270Do not eat, drink or smoke when using this product.
  • P271Use only outdoors or in a well-ventilated area.
  • P273Avoid release to the environment.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P284In case of inadequate ventilation wear respiratory protection.
  • P302 + P335 + P334If on skin: Brush off loose particles from skin. Immerse in cool water or wrap in wet bandages.
  • P304 + P340If inhaled: Remove person to fresh air and keep comfortable for breathing.
  • P316Get emergency medical help immediately.
  • P318If exposed or concerned, get medical advice.
  • P319Get medical help if you feel unwell.
  • P320Specific treatment is urgent (see supplemental first aid instructions on the label).
  • P370 + P378In case of fire: Use appropriate media to extinguish.
  • P391Collect spillage.
  • P403 + P233Store in a well-ventilated place. Keep container tightly closed.
  • P405Store locked up.
  • P501Dispose of contents and container in accordance with local regulations.
UN number
UN 2570
Transport hazard class
6.1

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

Full safety data and first aid

Cadmium suppliers

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All 156 suppliers
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Where suppliers are based

156 suppliers in 21 countries

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Cadmium price

Indicative price range per kg from live supplier offers

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Uses and applications

What the substance is used for, by industry and function

Used in bearing alloys with low coefficients of friction and great resistance to fatigue, it is used extensively in electroplating ... many types of solder, for standard E.M.F. (electromotive force) cells, for Ni-Cd batteries and as a barrier to control atomic fission.

Cadmium chloride is produced by reaction of molten cadmium and chlorine gas at 600 °C or by dissolving cadmium metal or the oxide in hydrochloric acid, subsequently vaporizing the solution.

In electroplating of automotive, aircraft and electronic parts, marine equipment and industrial machinery, in preparation of cadmium sulfides, cadmium selenides and mixtures containing these salts for use as pigments (including phosphors).

Fire protection systems ...

Read more

machinery enamels, baking enamels, Weston standard-cell control of atomic fission in nuclear reactors, fungicide, photography and lithography.

Most cadmium used in the United States today is obtained as a byproduct from the smelting of zinc, lead, or copper ores.

Industrial uses: Plating agent, Semiconductor and photovoltaic agent, Alloys, Other, Intermediate.

Consumer uses: Alloys, Semiconductor and photovoltaic agent.

Use classes: Inorganic substances.

Industries and functions

Cosmetic ingredient, INCI name CADMIUM (NON-PYROPHORIC)[1], CADMIUM OXIDE (NON-PYROPHORIC)[2](not reported)

Functional uses

  • Pigment
  • Surface modifier

Cosmetic functions

  • Not reported

Pharmacology

Cadmium is an element with atomic symbol Cd, atomic number 48, and atomic weight 112.4.

How it is made

Obtained in vapor form when roasting zinc ores, as sludge from zinc sulfate purification.

The zinc concentrate, obtained after beneficiation of the ores, is first roasted to convert the zinc sulfide to the oxide and a small amount of sulfate. Roasting is normally carried out with an excess of oxygen below 1000 °C so that little cadmium is eliminated from the calcined material.

Read more

Since the advent of the Imperial Smelting Zinc Furnace, the preliminary roasting processes for zinc and zinc-lead concentrates result in cadmium recovery as precipitates from solution or as cadmium-lead fume, respectively.

1) Dust or fume from roasting zinc ores is collected, mixed with coal or coke and sodium or zinc chloride, and sintered. The cadmium fume is collected in an electrostatic precipitator, leached, fractionally precipitated, and distilled. (2) By direct distillation from cadmium-bearing zinc. (3) By recovery from electrolytic zinc process (approximately 40%).

Regulatory status

Inventories, regulations and trade controls that list this substance

Europe

  • EU harmonised classification (CLP Annex VI)
    Index no: 048-011-00-X

Health and food

  • EU cosmetic ingredient inventory
  • EU Cosmetics Regulation Annex II, prohibited in cosmetics
    Name: Cadmium and its compounds, Ref no: 68, Annex ref: II/68
  • Active ingredient in FDA approved drug labels

United States

  • TSCA inventory (USA)
    Status: Active in US commerce

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Cadmium is traded under.

HS 8112.69Indicative HS code

Cadmium, other

Our trade statistics cover HS chapters 25 to 40 (minerals, chemicals, plastics and rubber). This code is in chapter 81, metals, which is not included yet.

Reported customs values in USD, not prices.Full trade data

The HS code shown for Cadmium is indicative (it is known at chapter level only). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Cadmium, based on the data on this page

What is Cadmium?

Cadmium atom is a zinc group element atom.

What is the CAS number of Cadmium?

The CAS registry number of Cadmium is 7440-43-9. Other or deprecated CAS numbers: 72172-64-6, 81271-94-5.

What is the molecular formula and weight of Cadmium?

The molecular formula of Cadmium is Cd and its molar mass is 112.41 g/mol.

What is Cadmium used for?

Used in bearing alloys with low coefficients of friction and great resistance to fatigue, it is used extensively in electroplating ... many types of solder, for standard E.M.F. (electromotive force) cells, for Ni-Cd batteries and as a barrier to control atomic fission.

Is Cadmium hazardous?

Cadmium carries the GHS signal word "Danger". Main hazards: catches fire spontaneously if exposed to air, fatal if inhaled, suspected of causing genetic defects. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Cadmium?

Cadmium is usually classified under HS code 811269 (Cadmium, other). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Cadmium?

CompoundList lists 156 suppliers of Cadmium in China, India, United States, Germany and 17 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy Cadmium in India?

40 suppliers in India list Cadmium on CompoundList. Filter the suppliers list by country and send a request to compare prices, grades and delivery times.

What is the price of Cadmium?

Suppliers quote Cadmium on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

Guides for buyers

Practical guides that help when you source, ship or handle Cadmium

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Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
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