Rhenium(VII) sulfide is a chemical compound with the

formula In science, a formula is a concise way of expressing information symbolically, as in a mathematical formula or a ''chemical formula''. The informal use of the term ''formula'' in science refers to the general construct of a relationship betwee ...

Re₂S₇. It has a complex structure, but can be synthesized from direct combination of the elements: 2Re + 7S -> atop\DeltaRe2S7Alternatively,

rhenium(VII) oxide Rhenium(VII) oxide is the inorganic compound with the formula Re2 O7. This yellowish solid is the anhydride of HOReO3. Perrhenic acid, Re2O7·2H2O, is closely related to Re2O7. Re2O7 is the raw material for all rhenium compounds, being the volat ...

reacts with

hydrogen sulfide Hydrogen sulfide is a chemical compound with the formula . It is a colorless chalcogen-hydride gas, and is poisonous, corrosive, and flammable, with trace amounts in ambient atmosphere having a characteristic foul odor of rotten eggs. The unde ...

in 4N

HCl HCL may refer to: Science and medicine * Hairy cell leukemia, an uncommon and slowly progressing B cell leukemia * Harvard Cyclotron Laboratory, from 1961 to 2002, a proton accelerator used for research and development * Hollow-cathode lamp, a spe ...

to the same end: Re2O7 + 7H2S -> atop\DeltaRe2S7 + 7H2O The compound catalyses the reduction of

nitric oxide Nitric oxide (nitrogen oxide or nitrogen monoxide) is a colorless gas with the formula . It is one of the principal oxides of nitrogen. Nitric oxide is a free radical: it has an unpaired electron, which is sometimes denoted by a dot in its che ...

nitrous oxide Nitrous oxide (dinitrogen oxide or dinitrogen monoxide), commonly known as laughing gas, nitrous, or nos, is a chemical compound, an oxide of nitrogen with the formula . At room temperature, it is a colourless non-flammable gas, and has a ...

and hydrogenation of double bonds. In this regard, it unusually tolerates sulfur compounds, which poison

noble metal A noble metal is ordinarily regarded as a metallic chemical element that is generally resistant to corrosion and is usually found in nature in its raw form. Gold, platinum, and the other platinum group metals (ruthenium, rhodium, palladium, o ...

catalysts. Rhenium(VII) sulfide decomposes when heated. In

vacuum A vacuum is a space devoid of matter. The word is derived from the Latin adjective ''vacuus'' for "vacant" or "void". An approximation to such vacuum is a region with a gaseous pressure much less than atmospheric pressure. Physicists often dis ...

, it generates rhenium(IV) sulfide: :

\mathrm

In air, the sulfur oxidizes to

sulfur dioxide Sulfur dioxide (IUPAC-recommended spelling) or sulphur dioxide (traditional Commonwealth English) is the chemical compound with the formula . It is a toxic gas responsible for the odor of burnt matches. It is released naturally by volcanic activ ...

: :

\mathrm

References

* Kunyants, I. L. ''et al'', eds. (1995). ''Химическая энциклопедия'' 'Chemical encyclopedia''. Moscow: Soviet Encyclopedias. * Nikolsky, B. P. ''et al'', eds. (1971). ''Справочник химика'' 'Handbook of Chemistry''. 3^rd (revised) ed.

Leningrad Saint Petersburg ( rus, links=no, Санкт-Петербург, a=Ru-Sankt Peterburg Leningrad Petrograd Piter.ogg, r=Sankt-Peterburg, p=ˈsankt pʲɪtʲɪrˈburk), formerly known as Petrograd (1914–1924) and later Leningrad (1924–1991), i ...

: Khimiya Publishing. * Ripan, R.; Ceteanu, I. (1972). ''Химия металлов'' 'Chemistry of Metals''. Неорганическая химия norganic chemistry Moscow:

Mir ''Mir'' (russian: Мир, ; ) was a space station that operated in low Earth orbit from 1986 to 2001, operated by the Soviet Union and later by Russia. ''Mir'' was the first modular space station and was assembled in orbit from 1986 to&n ...

. Rhenium compounds Sulfides {{Inorganic-compound-stub