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Thallium Metal

CAS #: 7440-28-0

Linear Formula:

MDL Number

MFCD00134063

EC No.:

231-138-1

Chemical Structure

ORDER

Product	Product Code	ORDER	SAFETY DATA	Technical data
(2N) 99% Thallium Metal	TL-M-02	Pricing Add to cart only	SDS >	Data Sheet >
(3N) 99.9% Thallium Metal	TL-M-03	Pricing Add to cart only	SDS >	Data Sheet >
(4N) 99.99% Thallium Metal	TL-M-04	Pricing Add to cart only	SDS >	Data Sheet >
(5N) 99.999% Thallium Metal	TL-M-05	Pricing Add to cart only	SDS >	Data Sheet >

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Thallium Metal Properties (Theoretical)

Molecular Weight	204.37
Appearance	White Crystals
Melting Point	303.5 °C
Boiling Point	1457 °C
Density	11.85 g/cm³
Solubility in H2O	N/A
Tensile Strength	N/A
Thermal Conductivity	0.461 W/cm/K @ 298.2 K
Electrical Resistivity	18.0 microhm-cm @ 0 °C
Electronegativity	1.8 Paulings
Specific Heat	0.0307 Cal/g/K @ 25 °C
Heat of Fusion	1.03 Cal/gm mole
Heat of Vaporization	38.8 K-Cal/gm atom at 1457 °C

Thallium Metal Health & Safety Information

Signal Word	Danger
Hazard Statements	H300-H330-H373-H413
Hazard Codes	T+
Precautionary Statements	P260-P264-P284-P301+P310-P310
Risk Codes	26/28-33-53
Safety Statements	13-28-45-61
RTECS Number	XG3425000
Transport Information	UN 3288 6.1/PG II
WGK Germany	3
GHS Pictogram	Image , Image

About Thallium Metal

Thallium Metal is available as disc, granules, ingot, pellets, pieces, powder , rod, sputtering target, wire, and in numerous other forms and custom shapes. American Elements produces to many standard grades when applicable, including Mil Spec (military grade); ACS, Reagent and Technical Grade; Food, Agricultural and Pharmaceutical Grade; Optical Grade, USP and EP/BP (European Pharmacopoeia/British Pharmacopoeia) and follows applicable ASTM testing standards. Typical and custom packaging is available. Ultra high purity and high purity forms also include metal powder, submicron powder and nanoscale, quantum dots, targets for thin film deposition, pellets for evaporation and single crystal or polycrystalline forms. Elements can also be introduced into alloys or other systems as fluorides, oxides or chlorides or as solutions. Thallium metal is generally immediately available in most volumes. American Elements produces to many standard grades when applicable, including Mil Spec (military grade); ACS, Reagent and Technical Grade; Food, Agricultural and Pharmaceutical Grade; Optical Grade, USP and EP/BP (European Pharmacopoeia/British Pharmacopoeia) and follows applicable ASTM testing standards. Typical and custom packaging is available. Additional technical, research and safety (MSDS) information is available as is a Reference Calculator for converting relevant units of measurement.

Synonyms

N/A

Chemical Identifiers

Linear Formula	Tl
Pubchem CID	5359464
MDL Number	MFCD00134063
EC No.	231-138-1
Beilstein/Reaxys No.	N/A
SMILES	[Tl]
InchI Identifier	InChI=1S/Tl
InchI Key	BKVIYDNLLOSFOA-UHFFFAOYSA-N
Chemical Formula
Molecular Weight
Standard InchI
Appearance
Melting Point
Boiling Point
Density

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Packaging Specifications

Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and steel drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Shipping documentation includes a Certificate of Analysis and Safety Data Sheet (SDS). Solutions are packaged in polypropylene, plastic or glass jars up to palletized 440 gallon liquid totes, and 36,000 lb. tanker trucks.

Related Elements

See more Thallium products. Thallium (atomic symbol: Tl, atomic number: 81) is a Block P, Group 13, Period 6 element with an atomic weight of 204.38. The number of electrons in each of thallium's shells is 2, 8, 18, 32, 18, 3 and its electron configuration is [Xe] 4f¹⁴ 5d¹⁰ 6s² 6p¹. The thallium atom has a radius of 170 pm and a Van der Waals radius of 196 pm. Thallium was discovered by Sir William Crookes in 1861 and first isolated by Claude-Auguste Lamy in 1862. Thallium is a post-transition metal that is not found free in nature. Thallium is primarily used for its electrical conductivity as thallium sulfide, which changes with exposure to infrared light. This ability makes the compound useful in photocells. Thallium bromide-iodide crystals have been used as infrared optical materials. Thallium has also been used with sulfur, selenium or arsenic to produce low melting glasses which become fluid between 125 and 150 °C, while thallium oxide has been used to produce glasses with a high index of refraction, and is also used in the manufacture of photo cells. Its name is derived from the Greek word thallos, which means twig or green shoot.