SPI-Chem™ Thorium Fluoride Powder

For shadowing and replication applications in electron microscopy and also for thin film coatings

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Explanation of Hazardous Labels Chemical Formula: ThF4 Appearance: Off white granules/powder Odor: Odorless CAS #: 13709-59-6 NIOSH (RTECS) Number: 1007224TT M. P.: 1110°C (2030°F) Specific Gravity: 6.3 OSHA PEL: 2.5 mg(F)/m3 ACGIH TLV: 2.5 mg(F)/m3 Radioactivity: 0.05 UCI Hazard descriptions: Class 7 Radioactive UN #2910

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.

		Size	SPI #	Each		In Stock
		10gm	01816-AB	$65.00		Yes

Storage conditions:Room temperature
Hazardous from the standpoint of shipping

   

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Tuesday February 09, 2010
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