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Pakistan Telecommunication Company Ltd., commonly known as PTCL, is the national telecommunication company in Pakistan. [1] [3] PTCL provides telephone and internet services nationwide and is the backbone for the country's telecommunication infrastructure. The corporation manages and operates around 2000 telephone exchanges across the country ...
H 2 PtCl 6 → PtCl 4 + 2 HCl. A purer product can be produced by heating under chlorine gas at 250 °C. [4] If excess acids are removed, PtCl 4 crystallizes from aqueous solutions in large red crystals of pentahydrate PtCl 4 ·5(H 2 O), [5] which can be dehydrated by heating to about 300 °C in a current of dry chlorine. The pentahydrate is ...
Bis(triphenylphosphine)platinum chloride is a metal phosphine complex with the formula PtCl 2 [P(C 6 H 5) 3] 2. Cis- and trans isomers are known. The cis isomer is a white crystalline powder, while the trans isomer is yellow. [3] Both isomers are square planar about the central platinum atom. The cis isomer is used primarily as a reagent for ...
Ammonium hexachloroplatinate is used in platinum plating. Heating (NH 4) 2 [PtCl 6] under a stream of hydrogen at 200 °C produces platinum sponge. Treating this with chlorine gives H 2 [PtCl 6]. [2] Ammonium hexachloroplatinate decomposes to yield platinum sponge when heated to high temperatures: [2] [5] 3(NH 4) 2 PtCl 6 → 3Pt(s) + 2NH 4 Cl ...
Chloroplatinic acid (also known as hexachloroplatinic acid) is an inorganic compound with the formula [H 3 O] 2 [PtCl 6](H 2 O) x (0 ≤ x ≤ 6). A red solid, it is an important commercial source of platinum, usually as an aqueous solution. Although often written in shorthand as H 2 PtCl 6, it is the hydronium (H 3 O +) salt of the ...
In 2019, PTCL and Ufone were merging a number of their departments. [6] Rashid Khan, president and CEO of both Ufone and PTCL, died in December 2020. [7] In 2021, it purchased its own 4G spectrum license for US$279 million. [3] In July 2021, Ufone had around 23 million cellular subscriptions, and had a market share of 12%.
AZERTY layout used on a keyboard. AZERTY (/ ə ˈ z ɜːr t i / ə-ZUR-tee) is a specific layout for the characters of the Latin alphabet on typewriter keys and computer keyboards.The layout takes its name from the first six letters to appear on the first row of alphabetical keys; that is, (A Z E R T Y).
The chloride ligands on [PtCl 4] 2− are displaced by many other ligands. Upon reaction with triphenylphosphine, [PtCl 4] 2− converts to cis-bis(triphenylphosphine)platinum chloride: PtCl 4 2− + 2 PPh 3 → cis-PtCl 2 (PPh 3) 2 + 2 Cl −. The anti-cancer drug Cisplatin can similarly be prepared: [1] PtCl 4 2− + 2 NH 3 → cis-PtCl 2 (NH ...