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Metals, alloys and elements

Palladium

Also known as Palladium element, paladio, PD

CAS 7440-05-3Formula PdMolar mass 106.42 g/molEC 231-115-6
GHS signal word: Danger. Pictograms: Flammable, Harmful or irritant 118 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
Silver-white, ductile metal
Melting point
1,555 °C
Boiling point
2,963 °C
Density
12.02 g/cm³
Solubility
Soluble in aqua regia and fused alkalies, insoluble in organic acids
HS code
711021
Category
Metals, alloys and elements
Illustrative photo, metallic grey powder in a steel drum in a chemical plant
Typical packagingIllustrative packaging image, not the actual product

What is Palladium?

Plain description, key identifiers and synonyms

Palladium is chemical element (nickel group element atom) with atomic number 46. It is a nickel group element atom, a platinum group metal atom and a metal allergen.

Palladium is a chemical element with symbol Pd and atomic number 46.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
palladium
CAS number
7440-05-3 CAS number cross-checked
EC number
231-115-6
Molecular formula
Pd
UNII
5TWQ1V240M
MDL number
MFCD00011167, MFCD03457879, MFCD03613602, MFCD03613603
INCI name
COLLOIDAL PALLADIUM, PALLADIUM
InChIKey
KDLHZDBZIXYQEI-UHFFFAOYSA-N
InChI
InChI=1S/Pd
SMILES (canonical and isomeric)
[Pd]

Synonyms

  • Palladium element
  • paladio
  • PD
  • Palladex 600
  • Palladium, elemental
  • Palladium metallicum
  • Palladium on carbon
  • Palladium Black
  • Palladium on barium sulfate
  • Palladium on alumina
  • Pd/C
  • Palladium on strontium carbonate
  • Palladium 5% on Al2O3
  • Palladium on barium carbonate
  • Palladium powder, -200 mesh
  • Palladium sponge
  • Palladium granules
  • Palladium 10% on Carbon (wetted with ca. 55% Water)
  • Palladium Black 99.9%
  • Palladium (5% on Alumina Powder, Reduced, Dry)
  • Palladium (5% on Calcium Carbonate, Lead poisoned)
  • palladium on charcoal
  • Palladium Nitrate GFAA Matrix Modifier: 1% Pd in 10% HNO3
  • Palladium (5% on Barium Sulfate)
  • Palladium Hollow Cathode Lamp: 1.5" Diameter, 2-pin, Non-Coded
Show all 38 synonyms
  • Palladium Hollow Cathode Lamp: 2.0" Diameter, 4-pin, Cableless
  • Palladium Hollow Cathode Lamp: 2.0" Diameter, 9-pin, Non-Coded
  • Sulfur-Free Barium Concentrate: Ba @ approx. 7 wt% in Hydrocarbons
  • Palladium On Carbon (extent of labeling: 10 wt. % loading, matrix carbon, dry support)
  • Palladium wire, 1.0mm (0.04in) dia
  • Palladium, element
  • Palladium foil, 0.5mm (0.02in) thick
  • Palladium wire, 0.25mm (0.01in) dia
  • Palladium foil, 0.25mm (0.01in) thick
  • Palladium Standard: Pd @ 1000 microg/mL in 20% HCl
  • Palladium Standard: Pd @ 1000 microg/mL in 5% HNO3
  • Palladium Standard: Pd @ 10000 microg/mL in 20% HCl
  • palladiumblack

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
Silver-white, ductile metalexp.
Melting point
1,555 °Cexp.
Boiling point
2,963 °Cexp.
Density
12.02 g/cm³exp.
Solubility
Soluble in aqua regia and fused alkalies, insoluble in organic acidsexp.
Vapour pressure
3.47 Pa (0.0260 mm Hg) at 1552 °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
106.42 g/molcalc.
Exact mass
105.9035 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
GHS07: Harmful or irritant
Harmful or irritant

Hazard statements

  • H228Flammable solid.
  • H315Causes skin irritation.
  • H319Causes serious eye irritation.
  • H335May cause respiratory irritation.
  • H413May cause long lasting harmful effects to aquatic life.
Precautionary statements (21)
  • P210Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
  • P240Ground and bond container and receiving equipment.
  • P241Use explosion-proof electrical, ventilating and lighting equipment.
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • P264Wash skin thoroughly after handling.
  • P264 + P265Wash skin thoroughly after handling. Do not touch eyes.
  • P271Use only outdoors or in a well-ventilated area.
  • P273Avoid release to the environment.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P302 + P352If on skin: Wash with plenty of water.
  • P304 + P340If inhaled: Remove person to fresh air and keep comfortable for breathing.
  • P305 + P351 + P338If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P319Get medical help if you feel unwell.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P332 + P317If skin irritation occurs: Get medical help.
  • P337 + P317If eye irritation persists: Get medical help.
  • P362 + P364Take off contaminated clothing. And wash it before reuse.
  • P370 + P378In case of fire: Use appropriate media to extinguish.
  • P403 + P233Store in a well-ventilated place. Keep container tightly closed.
  • P405Store locked up.
  • P501Dispose of contents and container in accordance with local regulations.

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

Palladium suppliers

Sponsored listings first, then the documented ranking: membership, verification, replies, completeness, freshness and ratings

All 118 suppliers
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Where suppliers are based

118 suppliers in 17 countries

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Palladium 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

Palladium is used in gold, silver and copper alloys in dentistry. Alloys are also used for bearings, strings, and balance wheels in watches. Palladium is used as a catalyst in the manufacture of sulfuric acid. In powder form it is used as a catalyst in hydrogenation. The sponge form is used for separation of hydrogen from a mixture of gases. Silver alloys are used for electrical contacts.

The automotive industry has used palladium in catalytic converters since 1974. ... In jewelry, palladium hardened with 4-5% ruthenium provides a light, white, strong, tarnish-free alloy for watch cases, brooches, and settings for gems.

For alloy bearings, springs, balance wheels of watches, for mirrors in astronomical instruments, as catalyzer in manufacture of sulfuric acid and in other oxidizing processes.

Alloys for electrical relays and switching systems in telecommunication equipment, catalyst for reforming cracked petroleum fractions and hydrogenation, metallizing ceramics, "white" gold in jewelry, aircraft spark plugs, protective coatings.

Cosmetic ingredient, INCI name COLLOIDAL PALLADIUM(colorant)

Functional uses

  • Dye

Cosmetic functions

  • Colorant
  • Not reported

Pharmacology

Palladium is an element with atomic symbol Pd, atomic number 46, and atomic weight 106.42.

Regulatory status

Inventories, regulations and trade controls that list this substance

Health and food

  • EU cosmetic ingredient inventory
  • 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 Palladium is traded under.

HS 7110.21Indicative HS code

Palladium, unwrought or in powder form

Our trade statistics cover HS chapters 25 to 40 (minerals, chemicals, plastics and rubber). This code is in chapter 71, natural, cultured pearls, which is not included yet.

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

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

Frequently asked questions

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

What is Palladium?

Palladium is chemical element (nickel group element atom) with atomic number 46. It is a nickel group element atom, a platinum group metal atom and a metal allergen.

What is the CAS number of Palladium?

The CAS registry number of Palladium is 7440-05-3.

What is the molecular formula and weight of Palladium?

The molecular formula of Palladium is Pd and its molar mass is 106.42 g/mol.

What is Palladium used for?

Palladium is used in gold, silver and copper alloys in dentistry. Alloys are also used for bearings, strings, and balance wheels in watches. Palladium is used as a catalyst in the manufacture of sulfuric acid. In powder form it is used as a catalyst in hydrogenation.

Is Palladium hazardous?

Palladium carries the GHS signal word "Danger". Main hazards: flammable solid, causes skin irritation, causes serious eye irritation. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Palladium?

Palladium is usually classified under HS code 711021 (Unwrought or in powder form). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Palladium?

CompoundList lists 118 suppliers of Palladium in China, United States, India, Germany and 13 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy Palladium in India?

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

What is the price of Palladium?

Suppliers quote Palladium 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 Palladium

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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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