Autocatalysis
chemical reaction in which a product (or a reaction intermediate) also functions as a catalyst
A chemical reaction is autocatalytic if one of the reaction products is also a catalyst for the same reaction. Many forms of autocatalysis are recognized.
A set of chemical reactions can be said to be "collectively autocatalytic" if a number of those reactions produce, as reaction products, catalysts for enough of the other reactions that the entire set of chemical reactions is self-sustaining given an input of energy and food molecules (see autocatalytic set).
Examples
Acid-catalyzed hydrolysis of esters produces carboxylic acids that also catalyze the same reaction. Indeed, Wilhelm Ostwald's observation of an accelerating hydrolysis of gamma valerolactone to gamma-hydroxyvaleric acid led to the introduction of the concept of autocatalysis in 1890.
The oxidation of hydrocarbons by air or oxygen is the basis of autoxidation. Like many radical reactions, the rate vs time plot shows a sigmoidal behavior, characteristic of autocatalysis. Many reactions of organic compounds with halogen involve autocatalytic radical mechanisms. For example the reaction of acetophenone with bromine to give phenacyl bromide.
Oscillating reactions such as the Belousov–Zhabotinsky reaction are more complicated examples that involve autocatalysis.
“Autocatalysis” enters the record as chemical reaction in which a product (or a reaction intermediate) also functions as a catalyst. Crown Archives preserves that source wording while asking what Autocatalysis, chemical and reaction can confirm, complicate or overturn.
Why this record matters
“Autocatalysis” is worth following because a concise public description often conceals a longer documentary argument. Here, Autocatalysis, chemical and reaction provides the most credible route into that argument.
Datasets, specimens, observations and peer-reviewed methods provide the appropriate test for the technical claims summarized here. The source revision retrieved here is dated Sep 14, 2026. The linked authority identifier is Q786897. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1890.
Current terminology should not be projected backward without checking the classification used when the underlying evidence was created. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Check terminology, classification and the date of the cited evidence. Scientific names and technical consensus can change while older records retain historical value.
- Current terminology
- Classification context
- Finding cited technical literature
Primary datasets, specimen catalogues, standards bodies and the most recent peer-reviewed literature.
Three-step research path
- Establish the record: confirm the title “Autocatalysis”, its source revision and the description used here.
- Expand the search: follow Autocatalysis primary sources, Autocatalysis archive and Autocatalysis research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “Autocatalysis”?
- Which observation, specimen, dataset or publication supports the account?
- Has classification or technical consensus changed since the cited source?
Search terms from this dossier
This entry incorporates text from “Autocatalysis” 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.