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Rare earth compounds

Ytterbium

Also known as YB, Ytterbium Metallicum, Ytterbium atom

CAS 7440-64-4Formula YbMolar mass 173.04 g/molEC 231-173-2
GHS signal word: Danger. Pictograms: Flammable, Harmful or irritant 53 suppliers listed Drug substance
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Element with atomic number and standard atomic weight

Key facts

What buyers check first

All properties
CAS number
7440-64-4
Formula
Yb
Molar mass
173.04 g/mol
Physical form
Solid
HS code
280530
Category
Rare earth compounds
Illustrative photo, drums, an IBC tote and sacks in a chemical warehouse in a warehouse
Typical packagingIllustrative packaging image, not the actual product

What is Ytterbium?

Plain description, key identifiers and synonyms

Ytterbium is a lanthanoid atom and a f-block element atom.

Ytterbium is a chemical element with symbol Yb and atomic number 70.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
ytterbium
CAS number
7440-64-4 CAS number cross-checkedOther or deprecated CAS: 32997-62-9
EC number
231-173-2
Molecular formula
Yb
UNII
MNQ4O4WSI1
MDL number
MFCD00011286
InChIKey
NAWDYIZEMPQZHO-UHFFFAOYSA-N
InChI
InChI=1S/Yb
SMILES (canonical and isomeric)
[Yb]

Synonyms

  • YB
  • Ytterbium Metallicum
  • Ytterbium atom
  • Ytterbium (Ii) Ion
  • Ytterbium foil, 3N
  • Ytterbium Standard: Yb @ 1000 microg/mL in 5% HNO3
  • Ytterbium Standard: Yb @ 10000 microg/mL in 5% HNO3
  • yterbio
  • ytterbium metal
  • Ytterbium ingot
  • Ytterbium chunks
  • Ytterbium powder
  • Atomic Ytterbium
  • Element-Yb
  • Element:Yb
  • Ytterbium element
  • Element Ytterbium
  • Element:Ytterbium
  • Yb (element)
  • ytterbium(2+)
  • Ytterbium (atomic)
  • Ytterbium (element)
  • Yb Standard Solution
  • Ytterbium chips, 3N
  • Ytterbium ingot, 3N
Show all 35 synonyms
  • 70Yb
  • Ytterbium, elemental
  • Ytterbium powder, -200 mesh
  • Ytterbium Nanoparticle Dispersion
  • Ytterbium foil, 0.3mm (0.01in) thick
  • Ytterbium foil, 1.0mm (0.04in) thick
  • Ytterbium foil, 0.1mm (0.004in) thick
  • Ytterbium pieces, sublimed, 99.9% (REO)
  • Ytterbium foil, 0.64mm (0.025in) thick
  • Ytterbium, chunks, 99.9% trace metals basis

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

Physical form
Solidexp.

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
173.04 g/molcalc.
Exact mass
173.9389 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.
  • H250Catches fire spontaneously if exposed to air.
  • H252Self-heating in large quantities, may catch fire.
  • H302Harmful if swallowed.
  • H312Harmful in contact with skin.
  • H315Causes skin irritation.
  • H319Causes serious eye irritation.
  • H332Harmful if inhaled.
  • H335May cause respiratory irritation.
Precautionary statements (33)
  • 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.
  • P235Keep cool.
  • 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.
  • P270Do not eat, drink or smoke when using this product.
  • P271Use only outdoors or in a well-ventilated area.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P301 + P317If swallowed: Get medical help.
  • P302 + P335 + P334If on skin: Brush off loose particles from skin. Immerse in cool water or wrap in wet bandages.
  • 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.
  • P317Get medical help.
  • P319Get medical help if you feel unwell.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P330Rinse mouth.
  • 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.
  • P407Maintain air gap between stacks or pallets.
  • P410Protect from sunlight.
  • P413Store bulk masses at temperatures not exceeding the specified limit.
  • P420Store separately.
  • 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

Ytterbium suppliers

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

All 53 suppliers
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Where suppliers are based

53 suppliers in 12 countries

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Ytterbium 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

Health and food

  • 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 Ytterbium is traded under.

HS 2805.30Indicative HS code

Rare-earth metals, scandium and yttrium, whether or not intermixed or interalloyed

World exports in 2024
$385M
+7.4% vs 2023, imports $503M
2019 to 2024
Top exporters
  1. Vietnam * partner reported50.6%
  2. China24.9%
  3. Thailand17.1%
Top importers
  1. Japan49.0%
  2. Malaysia25.5%
  3. Vietnam * partner reported8.2%

* Partner reported figures, a lower bound.

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

The HS code shown for Ytterbium is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

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

What is Ytterbium?

Ytterbium is a lanthanoid atom and a f-block element atom.

What is the CAS number of Ytterbium?

The CAS registry number of Ytterbium is 7440-64-4. Other or deprecated CAS numbers: 32997-62-9.

What is the molecular formula and weight of Ytterbium?

The molecular formula of Ytterbium is Yb and its molar mass is 173.04 g/mol.

Is Ytterbium hazardous?

Ytterbium carries the GHS signal word "Danger". Main hazards: flammable solid, catches fire spontaneously if exposed to air, self-heating in large quantities, may catch fire. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Ytterbium?

Ytterbium is usually classified under HS code 280530 (Rare-earth metals, scandium and yttrium, whether or not intermixed or interalloyed). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Ytterbium?

CompoundList lists 53 suppliers of Ytterbium in United States, China, Germany, Spain and 8 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 Ytterbium?

Suppliers quote Ytterbium 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 Ytterbium

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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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