Skip to content

GREENVEIL

  • beauty
  • industrial
  • pharma

Thallium

CAS 7440-28-0 · 100/100 · High conf.

Also registered as 3 other CAS numbers

82870-81-3 · 113835-49-7 · 623903-27-5

Thallium chemical structure

Concern score

100/100Critical concern based on regulatory listings.
High confidence

Thallium in plain language

What it is

Also known as Elemental thallium · Thallium and its compounds · Ramor · Thallium element · 81Tl · Muscle spasms

Show all 31 names

Ramor; Thallium, metallic; Thallium, elemental; · Talio · Thallium (I), soluble salts · Thallium (Soluble Salts) · Thallium 205 · Thallium Standard: Tl @ 1000 microg/mL in 5% HNO3 · Thallium Standard: Tl @ 10000 microg/mL in 5% HNO3 · Thallium and Compounds · Thallium granules · metallic Thallium · Thulium Metallicum · Tl · lambda1-thallanylium · thallium (sara 313) (cercla) · thallium (sara 313) (cercla) % wt: 100 ppm · thallium (sara 313) (cercla) % wt: 20 ppm · thallium (sara 313) (cercla) % wt: 10 ppm · thallium (sara 313) (cercla) %:200 ppm · thallium (sara 313) (cercla)=1000ppm · thallium (sara 313) (cercla)=100ppm · thallium (sara 313) (cercla)=5ppm · thallium (sara iii) · Thallium metallicum · Thallium, dissolved (as Tl) · Thallium, total (as Tl)

What it does

We don't have a plain-language description for Thallium yet.

Recorded functional uses: Degradant/impurity · Surface modifier · Tile body

Is it a concern?
Critical concern: no hazard classifications on record. It is banned in EU cosmetics.

Why it's flagged

Thallium and its compounds is prohibited in cosmetic products under Annex II of the EU Cosmetics Regulation (EC) 1223/2009.

RestrictedEU EC — banned

The score describes this ingredient's chemical identity — its hazard profile from published classifications and regulatory status — not the safety of any product it appears in.

Regulation

Restrictions first, then routine listings from published regulatory sources.

  • In marketed US drugs
  • EU Annex II — prohibited
  • EU prohibited in cosmetics

Recorded in these product areas

  • Found in consumer products
  • Industrial

  • EUEC

    Annex II of EU Cosmetics Regulation (EC) 1223/2009: substances prohibited in cosmetic products.

    banned
    View source →
  • EUCosIngActiveCosmetics Regulation annex II / ref 317.
    • Cosmetics Regulation annex II / ref 317.Source →
  • USEPAcommercial use observedEPA CPDat observed this chemical in 76 composition records across product categories including Construction and building materials, Laboratory supplies, Batteries. EPA CPDat classifies this chemical for functional uses including tile body, Surface modifier, Degradant/impurity.
    • EPA CPDat observed this chemical in 76 composition records across product categories including Construction and building materials, Laboratory supplies, Batteries. EPA CPDat classifies this chemical for functional uses including tile body, Surface modifier, Degradant/impurity.Source →
  • USFDAmarketed drug occurrenceFDA NDC lists this ingredient in 24 active drug products and 33 total products.
    • FDA NDC lists this ingredient in 24 active drug products and 33 total products.Source →
  • USFDAlisted in openFDA substanceopenFDA substance registry classifies this ingredient as chemical.
    • openFDA substance registry classifies this ingredient as chemical.Source →

Expert safety opinions

No expert opinion on file for Thallium. These are the independent scientific bodies that assess ingredients like this one; we show an opinion only when a record we hold cites it.

  • SCCS

    EU Scientific Committee on Consumer Safety

    No SCCS opinion on file.

  • CIR

    Cosmetic Ingredient Review (US expert panel)

    No CIR safety assessment on file.

Evidence & sources

No graded research studies for Thallium yet. This record is compiled from the published data sources below — registries and regulatory listings, not study findings.

8 data sources

Where this comes from

  • CosIng

    regulatory · updated 2026-09-23

    Open →

  • EU CosIng Cosmetics Regulation Annexes

    regulatory · updated 2010-10-15

    Open →

  • EPA Chemical and Products Database

    exposure · updated october 21, 2016

    Open →

  • EPA DSSTox Identifiers

    chemistry · updated 2025-12-29

    Open →

  • FDA National Drug Code Directory

    regulatory · updated 2029-06-13

    Open →

  • FDA GSRS UNII

    registry · updated 2026-02-26

    Open →

  • openFDA Substance

    registry · updated 2026-05-24

    Open →

  • PubChem Live Enrichment

    chemistry · updated 2026-05-17

    Open →

Allergen profile

Canonical allergen markers detected on this ingredient. Each row is derived from the ingredient’s name or synonyms matching a known allergen class — useful when scanning a label for a specific allergy context.

  • SoyContains · Oral (ingested)

    Source: chemindex_name_match

Suitability

Context-specific fit derived from published classifications and the current ingredient evidence profile.

Fragrance avoidance

No fragrance-linked caution surfaced in the current profile.

Good fit

This ingredient does not currently read as a fragrance-linked driver in the published evidence and hazard profile.

Where it has been recorded

How often EPA CPDat has listed Thallium in a product composition. These are source records, not Greenveil catalog products.

Source records

76

Named organisations

6

Construction and building materialsLaboratory suppliesBatteriesSpecialty occupational productsElectronics/small appliances

Typical roles

Degradant/impuritySurface modifierTile bodyTile body and glaze
See products using Thallium →