Search results
Results from the WOW.Com Content Network
Titanium hydride normally refers to the inorganic compound TiH 2 and related nonstoichiometric materials. [1] [2] It is commercially available as a stable grey/black powder, which is used as an additive in the production of Alnico sintered magnets, in the sintering of powdered metals, the production of metal foam, the production of powdered titanium metal and in pyrotechnics.
Common oxidizers used are potassium perchlorate and potassium nitrate. Common fuels used are titanium, titanium(II) hydride, zirconium, zirconium hydride, and boron. The size of the fuel particles is determined to produce hot particles with the required burning time. More exotic materials can be used, e.g. carboranes. [1]
Potassium perchlorate in crystal form. Potassium perchlorate is prepared industrially by treating an aqueous solution of sodium perchlorate with potassium chloride.This single precipitation reaction exploits the low solubility of KClO 4, which is about 1/100 as much as the solubility of NaClO 4 (209.6 g/100 mL at 25 °C).
Titanium(IV) hydride was first produced in 1963 by the photodissociation of mixtures of TiCl 4 and H 2, followed by immediate mass spectrometry. [1] Rapid analysis was required as titanium(IV) hydride is extremely unstable. Computational analysis of TiH 4 has given a theoretical bond dissociation energy (relative to M+4H) of 132 kcal/mole. [2]
Potassium perchlorate – KClO 4; Potassium periodate – KIO 4; Potassium permanganate – KMnO 4; Potassium sodium tartrate – KNaC 4 H 4 O 6; Potassium sulfate – K 2 SO 4; Potassium sulfite – K 2 SO 3; Potassium sulfide – K 2 S; Potassium tartrate – K 2 C 4 H 4 O 6; Potassium tetraiodomercurate(II) – K 2 HgI 4; Potassium ...
Note that the especially high molar values, as for paraffin, gasoline, water and ammonia, result from calculating specific heats in terms of moles of molecules. If specific heat is expressed per mole of atoms for these substances, none of the constant-volume values exceed, to any large extent, the theoretical Dulong–Petit limit of 25 J⋅mol ...
[2.2.2]Cryptand is the organic compound with the formula N(CH 2 CH 2 OCH 2 CH 2 OCH 2 CH 2) 3 N. This bicyclic molecule is the most studied member of the cryptand family of chelating agents. [2]
Titanium perchlorate can be formed by reacting titanium tetrachloride with perchloric acid enriched in dichlorine heptoxide. [2] Another way uses titanium tetrachloride with dichlorine hexoxide. This forms a complex with Cl 2 O 6 which when warmed to 55° in a vacuum, sublimes and can crystallise the pure anhydrous product from the vapour. [1]