WTLI
TLI may refer to: * Thallium(I) iodide, a Thallium compound * Transport Layer Interface, a networking application programming interface. * Trans-lunar injection, a propulsive maneuver used to set a spacecraft on a trajectory which will arrive at the Moon. * Tseng Laboratories, Inc., the full corporate name of Tseng Labs * Tall Latte index, an economic index based on the cost of a cup of Starbucks coffee * Taipei Language Institute The Taipei Language Institute (TLI; ) was founded in 1956 by a group of missionaries who wished to provide training in Mandarin Chinese for Taiwan-bound missionaries. Originally named Missionary Language Institute, the founder Dr. Marvin Ho c ...

Thallium(I) Iodide
Thallium(I) iodide is a chemical compound with the formula TlI. It is unusual in being one of the few water-insoluble metal iodides, along with AgI, CuI, SnI2, SnI4, PbI2 and HgI2. Chemistry TlI can be formed in aqueous solution by metathesis of any soluble thallium salt with iodide ion. It is also formed as a by-product in thallium-promoted iodination of phenols with thallium(I) acetate. Attempts to oxidise TlI to thallium(III) iodide fail, since oxidation produces thallium(I) triiodide, . Physical properties The room temperature form of TlI is yellow and has an orthorhombic structure which can be considered to be a distorted NaCl structure. The distorted structure is believed to be caused by favourable thallium-thallium interactions, the closest Tl-Tl distance is 383 pm. At 175 °C the yellow form transforms to a red CsCl form. This phase transition is accompanied by about two orders of magnitude jump in electrical conductivity. The CsI structure can be stabilized ...
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