Dithallium trioxide
[CAS# 1314-32-5]

Identification

• Name: Dithallium trioxide
• Synonyms: Thallium oxide; Thallium oxide (2:3); Thallium sesquioxide; Thallium trioxide; Thallium(3+) oxide; Thallium(III) oxide
• Molecular Formula: Tl₂O₃
• Molecular Weight: 456.76
• CAS Registry Number: 1314-32-5
• EC Number: 215-229-3

Properties

• Density: 10.2 g/cm^3*
• Melting point: 870 ºC^**

^* "Hazardous Substances Data Bank" data were obtained from the National Library of Medicine (US)

^** Rabe, Otto; Zeitschrift fuer Anorganische Chemie 1907, V55, P130-46.

Safety Data

• Hazard Symbols: T+;N
• Risk Codes: R26/28;R33;R51/53
• Safety Description: S13;S28;S45;S61

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Acute toxicity	Acute Tox.	2	H300
Chronic hazardous to the aquatic environment	Aquatic Chronic	2	H411
Acute toxicity	Acute Tox.	2	H330
Specific target organ toxicity - repeated exposure	STOT RE	2	H373

• Transport Information: UN 1707 6.1 / PGII