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Metals, alloys and elements

Francium

Also known as Fr, francium atom, francio

CAS 7440-73-5Formula FrMolar mass 223.00 g/mol
5 suppliers listed
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Element with atomic number and standard atomic weight

Key facts

What buyers check first

All properties
CAS number
7440-73-5
Formula
Fr
Molar mass
223.00 g/mol
Category
Metals, alloys and elements

What is Francium?

Plain description, key identifiers and synonyms

Francium atom is an alkali metal atom.

Francium is a chemical element with symbol Fr and atomic number 87.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
francium
CAS number
7440-73-5 CAS number cross-checked
Molecular formula
Fr
UNII
15TEQ7D2QF
InChIKey
KLMCZVJOEAUDNE-UHFFFAOYSA-N
InChI
InChI=1S/Fr
SMILES (canonical and isomeric)
[Fr]

Synonyms

  • Fr
  • francium atom
  • francio
  • Franzium
  • Atomic Francium
  • Francium element
  • Element Francium
  • Element-Fr
  • Element:Fr
  • Element:Francium
  • Fr (element)
  • Francium (atomic)
  • Francium (element)
  • 87Fr

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

No measured properties are recorded for this substance yet. Ask suppliers for a technical data sheet.

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
223.00 g/molcalc.
Exact mass
223.0197 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

No GHS hazard classification is recorded for this substance yet. That does not mean it is harmless.

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

Francium suppliers

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

All 5 suppliers
5 of 5 offers

Suppliers marked Unclaimed profile have not claimed their profile yet. They are not verified by CompoundList, their offers are price on request and details may have changed, so please confirm them with the supplier. Company representatives can claim a profile with a business email on the company's own website domain. Our team verifies each claim and sends the result by email.

Where suppliers are based

5 suppliers in 5 countries

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Francium price

Indicative price range per kg from live supplier offers

No published prices right now

Suppliers quote this chemical on request. Send one free request and compare quotes side by side.

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Uses and applications

What the substance is used for, by industry and function

Applications are not documented for this substance yet. Suppliers often describe uses on their product pages, linked in the suppliers list above.

Regulatory status

Inventories, regulations and trade controls that list this substance

No regulatory list memberships are recorded for this substance yet. Always check the rules of the importing and exporting country before trade.

HS code and trade data

Customs classification and reported world trade statistics

An indicative HS code has not been assigned to this substance yet, so trade statistics are not linked. Browse world trade statistics by HS code in our trade hub.

Trade data hub

Frequently asked questions

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

What is Francium?

Francium atom is an alkali metal atom.

What is the CAS number of Francium?

The CAS registry number of Francium is 7440-73-5.

What is the molecular formula and weight of Francium?

The molecular formula of Francium is Fr and its molar mass is 223.00 g/mol.

Is Francium hazardous?

No GHS hazard classification for Francium is recorded on CompoundList yet. That does not prove it is safe. Always read the supplier safety data sheet.

Where can I buy Francium?

CompoundList lists 5 suppliers of Francium in China, Japan, South Korea, Russia and 1 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 Francium?

Suppliers quote Francium 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 Francium

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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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