Thulium
Also known as: EINECS 231-140-2, MFCD00011281, Tm, thulium atom
Thulium (CAS 7440-30-4) is a compound in the Inorganic Chemicals category listed in the Jingsj chemical database. It has the molecular formula Tm and a molecular weight of 168.934 g/mol. Key properties include a melting point of 1545 °C(lit.), a boiling point of 1950 °C(lit.) and a density of 9.332 g/mL at 25 °C(lit.). It is classified under GHS with signal word Danger and hazard statements H228, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. It is listed by 1 supplier; request a quote for pricing. Record last updated Aug 21, 2026.
- CAS No.
- 7440-30-4
- Jingsj CID
- J-47997-6
- Molecular Formula
- Tm
- Molecular Weight
- 168.934 g/mol
- Category
- Inorganic Chemicals
- Last updated
- 8/21/2026
| Supplier | Purity / Pack | Base Price | Unit Price | Origin | |
|---|---|---|---|---|---|
Made to Order | - | - | CN China |
Physicochemical Properties
| Melting Point | 1545 °C(lit.) |
|---|---|
| Boiling Point | 1950 °C(lit.) |
| Density | 9.332 g/mL at 25 °C(lit.) |
| Exact Mass | 168.934204 |
| Appearance | powder |
GHS Safety & Compliance
- H228
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Frequently Asked Questions
What is the CAS number of Thulium?
The CAS number of Thulium is 7440-30-4.
What are the molecular formula and molecular weight of Thulium?
Thulium has molecular formula Tm and molecular weight 168.934 g/mol.
Which suppliers offer Thulium?
1 supplier(s) listed; request a quote for pricing.
Is Thulium hazardous?
Thulium has GHS signal word Danger and hazard statements H228; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Thulium (CAS 7440-30-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-47997-6 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.