Tungsten hexafluoride
Tungsten(VI) fluoride, also known as tungsten hexafluoride, is an inorganic compound with the formula WF6. It is a toxic, corrosive, colorless gas, with a density of about 13 kg/m3 (22 lb/cu yd) (roughly 11 times heavier than air). It is the densest known gas under standard ambient temperature and pressure (298 K, 1 atm) and the only well characterized gas under these conditions that contains a transition metal. WF6 is commonly used by the semiconductor industry to form tungsten films, through the process of chemical vapor deposition. Wikipedia
Data from the Hazardous Materials Table
Source:
49 CFR §172 (2018/07)
(3) Hazard Class 2.3 Poisonous gas |
UN 2196 |
n/a |
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×Note:Special provisions may be very complex. The extracts are taken from 49 CFR §172.102. Please be careful with the information, as necessary, additional conditions may be applied that are not written here. Please check the original source and report bugs. 2 | This material is poisonous by inhalation (see §171.8 of this subchapter) in Hazard Zone B (see §173.116(a) or §173.133(a) of this subchapter), and must be described as an inhalation hazard under the provisions of this subchapter. Browse special provision 2 |
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N86 | |
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(9A) Passenger aircraft/rail | Forbidden |
(9B) Cargo aircraft only | Forbidden |
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(10A) Location | D Stowage category “D” means the material must be stowed “on deck only” on a cargo vessel or on a passenger vessel carrying a number of passengers limited to not more than the larger of 25 passengers or one passenger per each 3 m of overall vessel length, but the material is prohibited on a passenger vessel in which the limiting number of passengers is exceeded. Source: 49 CFR §172.101(k) |
(10B) Other | |
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Segregation Chart for Load, Transport, Storage
In this table a statement is contained for each hazard class whether the loading, transport or storage with other hazard classes is allowed, is not permitted or is restricted. The table is based on U.S.-Code 49 CFR §177.848.
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May not be loaded, transported, or stored together in the same transport vehicle or storage facility. |
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Load, transport, storage together is not restricted. |
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Load, transport, storage together is allowed under restrictions. |