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Rhenium(IV) oxide

chemical compound

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Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionJul 8, 2025
Entity authorityQ2451840 ↗
Source-derived summary

Rhenium(IV) oxide or rhenium dioxide is the inorganic compound with the formula ReO2. This gray to black crystalline solid is a laboratory reagent that can be used as a catalyst. It adopts the rutile structure.

Synthesis and reactions

It forms via comproportionation:

2 Re2O7 + 3 Re → 7 ReO2

Single crystals are obtained by chemical transport, using iodine as the transporting agent.:

ReO2 + I2 ⇌ ReO2I2

At high temperatures it undergoes disproportionation:

7 ReO2 → 2 Re2O7 + 3 Re

It forms rhenates with alkaline hydrogen peroxide and oxidizing acids.

Editorial summary

The public source identifies “Rhenium(IV) oxide” as chemical compound. This brief keeps that definition visible, then builds a research path around Rhenium, oxide and chemical.

Editorial reviewA sound reference starting point where classification, measurement and the date of the underlying evidence remain visible. The current 92-word lead offers orientation but no explicit four-digit date, so chronology should not be assumed. The selected authority fields contribute no independent date. Its value is orientation rather than verdict, with Rhenium, oxide and chemical providing the first useful test.
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A short description can identify a subject without explaining its stakes. For “Rhenium(IV) oxide”, the useful work is to connect “chemical compound” to the records capable of establishing context and consequence.

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Stable identifiers, scientific names and standards terminology offer the best bridge between this overview and specialist evidence. The source revision retrieved here is dated Jul 8, 2025. The linked authority identifier is Q2451840. None of the 0 selected statements returned an explicit reference.

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Source & attribution

This entry incorporates text from “Rhenium(IV) oxide” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.