| Formula / Notation | Tm |
|---|---|
| CAS Number | 7440-30-4 |
| Molecular Weight | 168.93 |
| Melting Point | 1545.0 |
| Boiling Point | 1950.0 |
| Density | 9.32 |
| Solubility | Insoluble in water |
| Appearance | Soft, silvery-grey, lustrous metal |
| Also Known As | Tm, thulium metal |
| Category | Elements |
What is Thulium?
Thulium is a soft, silvery rare earth metal, atomic number 69. The least abundant naturally occurring lanthanide. Tm-170 is a portable X-ray source used in medicine and industry. Thulium has a bluish-grey colour.
Formula & Notation
IUPAC Name: Thulium
Other Names / Synonyms: Tm, thulium metal
Properties & Characteristics
Physical Data
| Property | Value |
|---|---|
| Melting Point | 1545.0 |
| Boiling Point | 1950.0 |
| Density | 9.32 |
| Molecular Weight | 168.93 |
| Solubility | Insoluble in water |
| Appearance | Soft, silvery-grey, lustrous metal |
Uses & Applications
Safety Information
Always consult the SDS/MSDS before handling any chemical. This information is for educational purposes only.
Key Facts
Frequently Asked Questions
Thulium is a soft, silvery rare earth metal, atomic number 69. The least abundant naturally occurring lanthanide. Tm-170 is a portable X-ray source used in medicine and industry. Thulium has a bluish-grey colour.
Tm-170 portable X-ray source (powered by neutron activation from Tm-169). Thulium:YAG lasers. High-temperature superconductors. Didymium glass component. Research applications. Ferrite garnets for microwave applications.
Thulium metal: combustible powder. Thulium compounds: low toxicity. Tm-170: radioactive X-ray/gamma source - handle with radiation precautions. Limited occupational data. Handle with standard precautions.
The formula or notation for Thulium is: Tm