SPI-Chem Thorium Fluoride can be used both in the electron microscope
laboratory for evaporation (and replication) from a
molybdenum, tantalum, or platinum
boat. The purity is better than 99%.
Thorium fluoride as a coating is transparent to both UV and IR radiation
and vacuum deposited thin films of ThF4 are
quite chemically stable.
All Thorium compounds, including Thorium Fluoride, contain naturally occurring radioactive thorium.
Ionizing radiation is emitted, including beta and gamma radiation. There is
low risk of external radiation when handling small quantities of thorium
compounds. Common sense would dictate that exposure be limited at all times
and inhalation of the powder should definitely be avoided. Proper protection
such as the use of the proper OSHA approved masks should be used whenever
there is even the slightest possibility of air borne particles could be
present.
Add it at the end of the statement copied below:
To our customers outside the U.S., including Canada and Mexico - Please
note that due to the special classification of this product as a
radioactive material in excepted quantity, an additional surcharge of
$120.00 has been assessed by the airline industry and will be added to
the final shipping charges.
Licensing and shipping restrictions may apply. Consult your country
specific regulations regarding radioactive materials.
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