Thulium oxide , 99.9%metalsbasis , 12036-44-1

CAS NO.：12036-44-1

Empirical Formula: O3Tm2

Molecular Weight: 385.87

MDL number: MFCD00011285

EINECS: 234-851-6

PRODUCT Properties

• Melting point: 2425°C
• Density: 8.600
• storage temp.: under inert gas (nitrogen or Argon) at 2-8°C
• solubility: slightly soluble in acid solutions
• form: Sintered Lump
• color: Pale Green
• Water Solubility: Slightly soluble in strong acids. Insoluble in water.
• Crystal Structure: Sc2O3 type
• crystal system: Cube
• Merck: 14,9394
• Space group: Ia3
• Lattice constant:
  • a/nm: 1.0448
  • b/nm: 1.0448
  • c/nm: 1.0448
  • α/o: 90
  • β/o: 90
  • γ/o: 90
  • V/nm3: 1.1405
• InChIKey: CWEYWFRFCUNVEY-UHFFFAOYSA-N
• CAS DataBase Reference: 12036-44-1(CAS DataBase Reference)
• EPA Substance Registry System: Thulium oxide (Tm2O3) (12036-44-1)

Description and Uses

Thulium oxide (Tm2O3) powder has a greenish-white appearance. This rare earth sesquioxide has a cubic structure. The melting point of this material is approximately 2341°C. Tm2O3 is insoluble in water while it is slightly soluble in acidic environments. Tm2O3 has currently been receiving much attention because of its potential in the catalytic, electronic, optical and electrochemical applications. Tm2O3 has a high dielectric constant of 12–13 and its energy band gap of 5 eV.

Holmium(III) sulfate hydrate has specialized uses in ceramics, glass, phosphors and metal halide lamp, and dopant to garnet laser. Holmium lasers are used in medical, dental, and fiber-optical applications.

Safety

• Symbol(GHS): GHS07
• Signal word: Warning
• Hazard statements: H315-H319-H335
• Precautionary statements: P261-P280a-P304+P340-P305+P351+P338-P405-P501a
• Hazard Codes: Xi
• Risk Statements: 36/37/38
• Safety Statements: 26-36
• WGK Germany: 3
• TSCA: Yes
• HS Code: 28469099