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Tritium (from Ancient Greek τρίτος (trítos) 'third') or hydrogen-3 (symbol T or 3 H) is a rare and radioactive isotope of hydrogen with a half-life of ~12.3 years. The tritium nucleus (t, sometimes called a triton) contains one proton and two neutrons, whereas the nucleus of the common isotope hydrogen-1 (protium) contains one proton and no neutrons, and that of non-radioactive hydrogen ...
Toxic by inhalation liquid, flammable, n.o.s. with an inhalation toxicity lower than or equal to 1000ml/m 3 and saturated vapour concentration greater than or equal to 10 LC 50 UN 3385 6.1
Radioactive material, low specific activity (LSA-I) [non fissile or fissile-excepted] Radon gas UN 2913: 7: Radioactive material, surface contaminated objects (SCO-I or SCO-II) [non fissile or fissile-excepted] UN 2914-(UN No. no longer in use) UN 2915: 7: Radioactive material, Type A package [non-special form, non fissile or fissile-excepted ...
Tritium excretion can be accelerated further by increasing water intake to 3–4 liters/day. [11] Direct, short-term exposure to small amounts of tritium is mostly harmless. If a tritium tube breaks, one should leave the area and allow the gas to diffuse into the air. Tritium exists naturally in the environment, but in very small quantities.
As tritium forms a stable compound with oxygen (tritiated water) while helium-3 does not, the storage and collection process could continuously collect the material that outgasses from the stored material. Tritium is a critical component of nuclear weapons and historically it was produced and stockpiled primarily for this application. The decay ...
This list is sorted by boiling point of gases in ascending order, but can be sorted on different values. "sub" and "triple" refer to the sublimation point and the triple point, which are given in the case of a substance that sublimes at 1 atm; "dec" refers to decomposition. "~" means approximately.
Division 2.1: Flammable, Non-Toxic Gas Flammable gas means any material that: Is ignitable at 101.3 kPA (14.7 psia) when in a mixture of 13 percent or less by volume with air; or; Has a flammable range at 101.3 kPa with air of at least 12 percent regardless of the lower limit.
A non-combustible material [17] is a substance that does not ignite, burn, support combustion, or release flammable vapors when subject to fire or heat, in the form in which it is used and under conditions anticipated. Any solid substance complying with either of two sets of passing criteria listed in Section 8 of ASTM E 136 when the substance ...