THALLIUM(III) OXIDE
- CAS No.
- 1314-32-5
- Chemical Name:
- THALLIUM(III) OXIDE
- Synonyms
- THALLIC OXIDE;thallium(iii);THALLIUM OXIDE;Thallium(Ⅲ)oxide;Thallium trioxide;THALLIUM(+3)OXIDE;THALLIUM PEROXIDE;thallium(111)oxide;ThalliumoxideTI2O3;THALLIUM OXIDE (IC)
- CBNumber:
- CB3269747
- Molecular Formula:
- O3Tl2
- Molecular Weight:
- 456.76
- MDL Number:
- MFCD00011276
- MOL File:
- 1314-32-5.mol
| 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) |
| EWG's Food Scores | 1 |
| FDA UNII | 8C7MZ48UJ1 |
| EPA Substance Registry System | Thallium(III) oxide (1314-32-5) |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |    GHS06,GHS08,GHS09 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Danger | |||||||||
| Hazard statements | H300-H330-H373-H411 | |||||||||
| Precautionary statements | P301+P310a-P304+P340-P320-P330-P405-P501a | |||||||||
| Hazard Codes | T+,N | |||||||||
| Risk Statements | 26/28-33-51/53 | |||||||||
| Safety Statements | 13-28-45-61 | |||||||||
| RIDADR | UN 1707 6.1/PG 2 | |||||||||
| WGK Germany | 3 | |||||||||
| RTECS | XG2975000 | |||||||||
| TSCA | Yes | |||||||||
| HazardClass | 6.1 | |||||||||
| PackingGroup | II | |||||||||
| Toxicity | dog,LDLo,oral,34mg/kg (34mg/kg),American Industrial Hygiene Association Journal. Vol. 21, Pg. 399, 1960. | |||||||||
| NFPA 704 |
|
THALLIUM(III) OXIDE Chemical Properties,Uses,Production
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.
Uses
Analysis (testing for ozone), artificial gem, optical glass of high refractive index.
Uses
Thallium(III) oxide is used in organic synthesis and as an analytical reagent
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.
THALLIUM(III) OXIDE Preparation Products And Raw materials
Raw materials
Preparation Products
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