THALLIUM suppliers

Melting point:

303 °C(lit.)

Boiling point:

1457 °C(lit.)

Density 

1.01 g/mL at 25 °C

solubility 

insoluble in H2O; reacts with acid solutions

form 

rod

Specific Gravity

11.85

color 

Clear colorless

Resistivity

18 μΩ-cm, 20°C

Water Solubility 

insoluble H2O; reacts with HNO3, H2SO4 [MER06]

Merck 

13,9327

Exposure limits

TLV-TWA 0.1 mg/m³ (thallium and its soluble salts) (ACGIH, MSHA, and OSHA); IDHL 10/mg/m³.

Stability:

Stable.

Symbol(GHS) 

GHS06,GHS08

Signal word 

Danger

Hazard statements 

H300+H330-H373-H413

Precautionary statements 

P260-P264-P270-P273-P304+P340+P310-P314

Hazard Codes 

Xn,T+,T

Risk Statements 

26/28-33-53-36/37/38-20/22-36/38-23/25

Safety Statements 

13-28-45-61-36/37/39-36/37-26

RIDADR 

UN 3288 6.1/PG 2

OEB

D

OEL

TWA: 0.1 mg/m3

WGK Germany 

3

RTECS 

XG3425000

F 

23

TSCA 

Yes

HazardClass 

6.1

PackingGroup 

II

Toxicity

A naturally occurring metal used in organic syntheses, to form alloys with other metals, as a rodenticide and in superconductor research. Thallium was also used historically as a depilatory. Acute toxicity from thallium includes nausea, vomiting, diarrhea, polyneuritis, coma, convulsions, and death. Chronic toxicity includes reddening of the skin, polyneuritis, alopecia, and cataracts. Neural, hepatic, and renal damage, as well as deafness and loss of vision, have been documented after chronic exposure. The mechanism associated with such toxic effects is thought to involve complexing of thallium with sulfhydryl groups in mitochondria and consequent interference with oxidative phosphorylation. The oral LD50 in rats is about 30 mg/ kg, although 8-12 mg/kg is the estimated lethal dose in humans. Thallium is also teratogenic in rats.