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HomeProduct name listTHALLIUM(III) OXIDE

THALLIUM(III) OXIDE

  • CAS NO.:1314-32-5
  • Empirical Formula: O3Tl2
  • Molecular Weight: 456.76
  • MDL number: MFCD00011276
  • EINECS: 215-229-3
  • SAFETY DATA SHEET (SDS)
  • Update Date: 2024-08-28 13:53:22
THALLIUM(III) OXIDE Structural

What is THALLIUM(III) OXIDE?

Chemical properties

Thallium oxide is a solid, very dark brown and odourless chemical substance. Thallium oxide is stable under normal temperatures and pressures.
It is insoluble in water. Thallium oxide has been used to produce glasses with a high index of refraction.

The Uses of THALLIUM(III) OXIDE

Thallium(III) oxide is used in organic synthesis and as an analytical reagent

The Uses of THALLIUM(III) OXIDE

Analysis (testing for ozone), artificial gem, optical glass of high refractive index.

Production Methods

Thallium oxide is produced either by the chlorine-induced oxidation of thallous nitrate in an aqueous potassium hydroxide solution, followed by thallium reaction with oxygen, or from hydrogen peroxide and an alkaline thallium(I) solution ; or either form of thallous oxide oxidation. The oxide is an intermediate that can be formed during annealing or heating of semiconductors in air.

General Description

Brown powder. Insoluble in water.

Air & Water Reactions

Insoluble in water.

Reactivity Profile

A mixture of THALLIUM(III) OXIDE and antimony sulfide or sulfur explodes when ground in a mortar [Mellor 5:421 1946-47]. THALLIUM(III) OXIDE is decomposed by HCl with evolution of chlorine gas, and by H2SO4 with evolution of oxygen.

Safety Profile

Poison by ingestion, intraperitoneal, and intravenous routes. Combustible by chemical reaction. Evolves O2 @ 875°C. Mixtures with sulfur orantimony trisulfide explode when ground. Hydrogen sulfide ignites and may explode weakly on contact with the oxide. When heated to decomposition it emits toxic fumes of T1. See also THALLIUM COMPOUNDS.

Properties of THALLIUM(III) OXIDE

Melting point: 717 °C(lit.)
Boiling point: 875°C
Density  9,65 g/cm3
Flash point: 875°C
solubility  insoluble in H2O; reacts with acid solutions
form  Powder
color  black
Water Solubility  Insoluble in water and alkalis. Decomposes in HCl and H2SO4
Merck  14,9268
CAS DataBase Reference 1314-32-5(CAS DataBase Reference)
EPA Substance Registry System Thallium(III) oxide (1314-32-5)

Safety information for THALLIUM(III) OXIDE

Signal word Danger
Pictogram(s)
ghs
Skull and Crossbones
Acute Toxicity
GHS06
ghs
Health Hazard
GHS08
ghs
Environment
GHS09
GHS Hazard Statements H300:Acute toxicity,oral
H330:Acute toxicity,inhalation
H373:Specific target organ toxicity, repeated exposure
H411:Hazardous to the aquatic environment, long-term hazard
Precautionary Statement Codes P320:Specific treatment is urgent (see … on this label).
P330:Rinse mouth.
P304+P340:IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.
P405:Store locked up.

Computed Descriptors for THALLIUM(III) OXIDE

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