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Metals, alloys and elements

Tin atom

Also known as TIN, Sn, Tin powder

CAS 7440-31-5Formula SnMolar mass 118.71 g/molEC 231-141-8
GHS signal word: Warning. Pictograms: Harmful or irritant 66 suppliers listed
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Element with atomic number and standard atomic weight

Key facts

What buyers check first

All properties
Appearance
Cubic (gray), tetragonal (white), rhomboidal (tin brittle)
Melting point
231.9 °C
Boiling point
2,507 °C
Density
7.2 g/cm³
Solubility
SOL IN HYDROCHLORIC ACID, SULFURIC ACID, AQUA REGIA, ALKALI, SLIGHTLY SOL IN DIL NITRIC…
HS code
800110
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 Tin atom?

Plain description, key identifiers and synonyms

Tin atom is a post-transition metal atom and a carbon group element atom. It has a role as a micronutrient.

Tin atom is a chemical element with symbol Sn and atomic number 50.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
tin
CAS number
7440-31-5 CAS number cross-checkedOther or deprecated CAS: 191744-28-2
EC numbers
231-141-8, 640-396-8
Molecular formula
Sn
UNII
387GMG9FH5
MDL number
MFCD00133862
INCI name
TIN
InChIKey
ATJFFYVFTNAWJD-UHFFFAOYSA-N
InChI
InChI=1S/Sn
SMILES (canonical and isomeric)
[Sn]

Synonyms

  • TIN
  • Sn
  • Tin powder
  • Metallic tin
  • Zinn
  • Stannum metallicum
  • Tin Standard
  • Tin element
  • tin(0)
  • Tin granules
  • Tin foil
  • Tin shot
  • stannum
  • Wang
  • Tin, elemental
  • Tin powder, -100 mesh
  • Tin shot, 3mm (0.1in)
  • Tin Hollow Cathode Lamp: 1.5" Diameter, 2-pin, Non-Coded
  • Tin Hollow Cathode Lamp: 2.0" Diameter, 4-pin, Cableless
  • Tin Hollow Cathode Lamp: 2.0" Diameter, 9-pin, Non-Coded
  • Tin rod, 12.7mm (0.5in) dia
  • Sulfur-Free Iron Concentrate: Fe @ approx. 6 wt% in Hydrocarbons
  • Sulfur-Free Tin Concentrate: Sn @ approx. 18 wt% in Hydrocarbons
  • Tin, metal
  • Tin foil, 0.05mm (0.002in) thick
Show all 37 synonyms
  • Tin Standard: Sn @ 10 microg/mL in 5% HCl
  • Tin - Sn @ 5000 microg/g in Hydrocarbon Oil
  • Tin Powder,Tin element
  • Tin Standard: Sn @ 1000 microg/mL in 20% HCl
  • Tin Standard: Sn @ 10000 microg/mL in 20% HCl
  • Tin AA Standard: Sn @ 1000 microg/mL in 20% HCl
  • Tin powder, Tin, Stannum, Metallic tin, Tin, elemental
  • Tin Standard: Sn @ 10 microg/mL in 5% HNO3, tr. HF
  • estano
  • Tin Standard: Sn @ 1000 microg/mL in 5% HNO3, tr. HF
  • CI 77860
  • Tin Standard: Sn @ 10000 microg/mL in 5% HNO3, tr. HF

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
Cubic (gray), tetragonal (white), rhomboidal (tin brittle)exp.
Odour
Odorlessexp.
Melting point
231.9 °Cexp.
Boiling point
2,507 °Cexp.
Density
7.2 g/cm³exp.
Autoignition temperature
630 °Cexp.
Solubility
SOL IN HYDROCHLORIC ACID, SULFURIC ACID, AQUA REGIA, ALKALI, SLIGHTLY SOL IN DIL NITRIC ACID, INSOL IN WATERexp.
Vapour pressure
1 Pa @ 1224 °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
118.71 g/molcalc.
Exact mass
119.9022 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
Warning
GHS07: Harmful or irritant
Harmful or irritant

Hazard statements

  • H319Causes serious eye irritation.
  • H335May cause respiratory irritation.
Precautionary statements (11)
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • P264 + P265Wash skin thoroughly after handling. Do not touch eyes.
  • P271Use only outdoors or in a well-ventilated area.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • 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.
  • P337 + P317If eye irritation persists: Get medical help.
  • 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

Tin atom suppliers

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

All 66 suppliers
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Where suppliers are based

66 suppliers in 8 countries

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Tin atom 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

Tin plate, terneplate, Babbitt metal, pewter, bronze, corrosion-resistant coatings, collapsible tubes, anodes for electron plating, hot-dipped coatings, cladding, solders, low-melting alloys for fire control, organ pipes, dental amalgam, diecasting. White, type, and casting metal. Manufacture of chemicals, tinned wire (all copper wire that is to be rubber covered). Block tin is used to coat copper cooking utensils and lead sheet, or to line lead pipe for distilled water, beer, carbonated beverages, and some chemicals.

Cast and wrought forms.

Read more

tinplate, tin coatings, solder, bronze, bearing metals (includes babbitt metal), pewter, type metal, iron alloy, special alloys.

Chiefly for tin plating, soldering alloys, babbitt and type metals, manufacture of tin salts, collapsible tubes.

Substance listed with specific concentration in tattoo ink and/or permanent make up according to EU Commission Regulation 2020/2081. The concentration limit (by weight) is 0.00005%.

Industrial uses: Dye, Adhesion/cohesion promoter, Intermediate, Stabilizing agent, Catalyst, Ion exchange agent, Corrosion inhibitor.

Consumer uses: Adhesion/cohesion promoter, Ion exchange agent, Catalyst, Corrosion inhibitor, Filler, Flux agent, Plating agent.

Cosmetic ingredient, INCI name TIN(surface modifier)

Roles

  • food component
  • micronutrient
  • nutrient
  • physiological role

Functional uses

  • Antioxidant
  • Corrosion inhibitor
  • Plating agent
  • Stabilizing agent
  • Surface modifier
  • Surfactant (surface active agent)

Cosmetic functions

  • Surface modifier

Pharmacology

Tin is a metallic element with atomic symbol Sn, atomic number 50, and atomic weight 118.71.

How it is made

Recovery from mined ore (cassiterite, stannite, and tealite) by means of gravity concentration or magnetic separation, followed by smelting (primary), recovery from copper, lead, & tin-based scrap, and tin compounds

By roasting ore (cassiterite) to oxidize sulfates and to remove arsine, then reducing with coal in a reverberatory furnace, or by smelting in an electric furnace, secondary recovery from tin plate.

Ore is extracted with sodium carbonate solution & treated ore containing 60-70% of tin, as oxide, is reduced in a reverberatory furnace with limestone. Bars of impure tin are then melted, remaining impurities fused when metal of 99% purity is obtained. Electrolytic refining is also employed.

Regulatory status

Inventories, regulations and trade controls that list this substance

Health and food

  • EU cosmetic ingredient inventory

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 Tin atom is traded under.

HS 8001.10Indicative HS code

Tin, not alloyed

Our trade statistics cover HS chapters 25 to 40 (minerals, chemicals, plastics and rubber). This code is in chapter 80, tin, which is not included yet.

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

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

Frequently asked questions

Quick answers about Tin atom, based on the data on this page

What is Tin atom?

Tin atom is a post-transition metal atom and a carbon group element atom. It has a role as a micronutrient.

What is the CAS number of Tin atom?

The CAS registry number of Tin atom is 7440-31-5. Other or deprecated CAS numbers: 191744-28-2.

What is the molecular formula and weight of Tin atom?

The molecular formula of Tin atom is Sn and its molar mass is 118.71 g/mol.

What is Tin atom used for?

Tin plate, terneplate, Babbitt metal, pewter, bronze, corrosion-resistant coatings, collapsible tubes, anodes for electron plating, hot-dipped coatings, cladding, solders, low-melting alloys for fire control, organ pipes, dental amalgam, diecasting. White, type, and casting metal.

Is Tin atom hazardous?

Tin atom carries the GHS signal word "Warning". Main hazards: causes serious eye irritation, may cause respiratory irritation. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Tin atom?

Tin atom is usually classified under HS code 800110 (Tin, not alloyed). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Tin atom?

CompoundList lists 66 suppliers of Tin atom in United States, China, Germany, United Kingdom and 4 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of Tin atom?

Suppliers quote Tin atom 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 Tin atom

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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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