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Metals, alloys and elements

Antimony

Also known as Stibium, Stibium metallicum, Antimony powder

CAS 7440-36-0Formula SbMolar mass 121.76 g/molEC 231-146-5
GHS signal word: Danger. Pictograms: Acute toxicity (severe), Harmful or irritant, Serious health hazard, Hazardous to the environment 91 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 metal, hexagonal (gray antimony), black amorphous solid (black antimony)
Melting point
630 °C
Boiling point
1,587 °C
Density
6.68 g/cm³ at 20 °C
Solubility
Insoluble in water
HS code
811010
Category
Metals, alloys and elements
UN number
UN 2871
Illustrative photo, metallic grey powder in a steel drum in a chemical plant
Typical packagingIllustrative packaging image, not the actual product

What is Antimony?

Plain description, key identifiers and synonyms

Antimony(0) is an elemental antimony.

Antimony is a chemical element with symbol Sb and atomic number of 51.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
antimony
CAS number
7440-36-0 CAS number cross-checkedOther or deprecated CAS: 7803-52-3
EC numbers
231-146-5, 695-029-4
Molecular formula
Sb
UNII
0VKZ97K3UB, 9IT35J3UV3
MDL number
MFCD00134030
InChIKey
WATWJIUSRGPENY-UHFFFAOYSA-N
InChI
InChI=1S/Sb
SMILES (canonical and isomeric)
[Sb]

Synonyms

  • Stibium
  • Stibium metallicum
  • Antimony powder
  • Antimony metal
  • Antimony, metallic
  • Antimony element
  • Antymon
  • Antimony, regulus
  • Antimony, elemental
  • Regulus of antimony
  • Spiesglanz
  • Stibium Cream
  • Metallic antimony
  • Stibium 6
  • Stibium 6X
  • Antimony Metallicum
  • Stibium 20
  • Stibium 20X
  • Stibium 30X
  • Anitmonium Metallicum
  • Antimonium Metallicum
  • Stibium 0.4
  • CI 77050
  • Prepared metallic antimony
  • C.I. 77050
Show all 38 synonyms
  • Stibium 6X Special Order
  • Stibium 0.4 Adult Size Special Order
  • Antimony Black
  • antimony(3+) ion
  • Sb
  • Antimonide
  • antimony atom
  • Antimony shot
  • Antimony, ion (Sb(3-))
  • Sb Standard Solution
  • Antimony powder, -200 mesh
  • 7440-36-0(powder)
  • Pb/Sb Binary Alloy, 50g Chips

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 metal, hexagonal (gray antimony), black amorphous solid (black antimony)exp.
Melting point
630 °Cexp.
Boiling point
1,587 °Cexp.
Density
6.68 g/cm³ at 20 °Cexp.
Solubility
Insoluble in waterexp.
Vapour pressure
1 mm Hg at 886 °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
121.76 g/molcalc.
Exact mass
120.9038 Dacalc.
LogP (octanol/water)
-0.38calc.
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
GHS06: Acute toxicity (severe)
Acute toxicity (severe)
GHS07: Harmful or irritant
Harmful or irritant
GHS08: Serious health hazard
Serious health hazard
GHS09: Hazardous to the environment
Hazardous to the environment

Hazard statements

  • H301Toxic if swallowed.
  • H302Harmful if swallowed.
  • H332Harmful if inhaled.
  • H351Suspected of causing cancer.
  • H373May cause damage to organs through prolonged or repeated exposure.
  • H411Toxic to aquatic life with long lasting effects.
Precautionary statements (19)
  • P203Obtain, read and follow all safety instructions before use.
  • P260Do not breathe dust, fume, gas, mist, vapours or spray.
  • P261Avoid breathing 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.
  • P301 + P316If swallowed: Get emergency medical help immediately.
  • P301 + P317If swallowed: Get medical help.
  • P304 + P340If inhaled: Remove person to fresh air and keep comfortable for breathing.
  • P317Get medical help.
  • P318If exposed or concerned, get medical advice.
  • P319Get medical help if you feel unwell.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P330Rinse mouth.
  • P391Collect spillage.
  • P405Store locked up.
  • P501Dispose of contents and container in accordance with local regulations.
UN number
UN 2871
Transport hazard class
6.1
Packing group
III

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

Antimony suppliers

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

All 91 suppliers
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Where suppliers are based

91 suppliers in 15 countries

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Antimony 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

In manufacture of alloys, such as Britannia or Babbitt metal, hard lead, white metal, type, bullets and bearing metal, in fireworks, for thermoelectric piles, blackening iron, coating metals. etc.

Hardening alloy for lead, especially storage batteries and cable sheaths, bearing metal, type metal, solder, collapsible tubes and foil, sheet and pipe, semiconductor technology (99.999% grade), pyrotechnics.

Ceramics and glass and rubber products ..., flame retardants ..., and metal products, including antimonial lead and ammunition.

High purity antimony (up to 99.9%) has a limited but important application in the manufacture of semiconductor devices.

Antimony is alloyed with other metals such as lead to increase its hardness and strength, its primary use is in antimonial lead, which is used in grid metal for lead acid storage batteries.

Read more

Antimony oxides (primarily antimony trioxide) are used as fire retardants for plastics, textiles, rubber, adhesives, pigments, and paper.

Industrial uses: Hardener, Intermediate, Flame retardant, Fuel agents, Other, Alloys, X-ray absorber.

Consumer uses: Hardener, Flux agent, Alloys, Other.

Use classes: Inorganic substances.

Industries and functions

Functional uses

  • Corrosion inhibitor
  • Pigment
  • Surface modifier

Pharmacology

Antimony is an element with atomic symbol Sb, atomic number 51, and atomic weight 121.76.

How it is made

Preparation in the laboratory by reduction of (antimony pentoxide) with (potassium cyanide)...

Reduction of stibnite with iron scrap, direct reduction of natural oxide ores. About half the antimony used in the U.S. is recovered from lead-base battery scrap metal.

The antimony content of commercial ores ranges from 5 to 60%, and determines the method of treatment, either pyrometallurgical or hydrometallurgical.

Read more

In general, the lowest grades of sulfide ores, 5-25% antimony, are volatilized as oxides, 25-40% antimony ores are smelted in a blast furnace, and 45-60% antimony ores are liquated or treated by iron precipitation. The blast furnace is generally used for mixed sulfide and oxide ores, and for oxidized ores containing up to about 40% antimony, direct reduction is used for rich oxide ores. Some antimony ores are treated by leaching and electrowinning to recover the antimony. The concentrates may be leached directly or converted into a complex matte first. The most successful processes use an alkali hydroxide or sulfide as the solvent for antimony.

Regulatory status

Inventories, regulations and trade controls that list this substance

Health and food

  • EU Cosmetics Regulation Annex II, prohibited in cosmetics
    Name: Antimony and its compound, Ref no: 40, Annex ref: II/40
  • 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 Antimony is traded under.

HS 8110.10Indicative HS code

Unwrought antimony, powders

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 Antimony is indicative (it is known at chapter level only). Confirm the classification with your customs broker before shipping.

Frequently asked questions

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

What is Antimony?

Antimony(0) is an elemental antimony.

What is the CAS number of Antimony?

The CAS registry number of Antimony is 7440-36-0. Other or deprecated CAS numbers: 7803-52-3.

What is the molecular formula and weight of Antimony?

The molecular formula of Antimony is Sb and its molar mass is 121.76 g/mol.

What is Antimony used for?

In manufacture of alloys, such as Britannia or Babbitt metal, hard lead, white metal, type, bullets and bearing metal, in fireworks, for thermoelectric piles, blackening iron, coating metals. etc.

Is Antimony hazardous?

Antimony carries the GHS signal word "Danger". Main hazards: toxic if swallowed, harmful if swallowed, harmful if inhaled. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Antimony?

Antimony is usually classified under HS code 811010 (Unwrought antimony, powders). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Antimony?

CompoundList lists 91 suppliers of Antimony in United States, China, India, Germany and 11 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy Antimony in India?

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

What is the price of Antimony?

Suppliers quote Antimony 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 Antimony

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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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