Ullmann’s Encyclopedia of Industrial Chemistry

Ullmann’s Encyclopedia of Industrial Chemistry is an international reference work covering industrial chemistry, chemical engineering, and process technology. First founded in 1914 by Fritz Ullmann in Berlin, the work serves as an authoritative synthesis of chemical manufacturing practice, covering raw materials, commercial synthesis pathways, industrial unit operations, and plant safety standards. For researchers and process engineers working in chemical engineering and industrial process design, Ullmann’s provides benchmark technical data that connects bench-scale chemistry to commercial production.

What It Is

Ullmann’s Encyclopedia of Industrial Chemistry (frequently cited as Ullmann’s or Ullmanns) is a peer-reviewed technical encyclopedia published by Wiley-VCH. Originally titled Enzyklopädie der technischen Chemie, the work expanded over subsequent decades into a multi-volume international reference published in English. The publication documents industrial-scale chemical reactions, thermodynamic properties, flowsheets, materials of construction, and process economics across the global chemical industry.

While laboratory databases catalog individual molecular properties, Ullmann’s focuses on scalable manufacturing technology. Each entry provides technical monographs describing synthesis routes, catalysts, reaction kinetics, byproduct separation, environmental protection, and occupational safety. The work exists both as a multi-volume print edition and as an active digital platform, known as Ullmann’s Online, hosted on Wiley Online Library under DOI 10.1002/14356007.

Who Runs It and What It Covers

The encyclopedia is managed by an editorial board headed by an Editor-in-Chief (Barbara Elvers) alongside an international Editorial Advisory Board including Giuseppe Bellussi and leading chemical technologists. The content corpus is compiled and written by approximately 3,000 contributing subject experts affiliated with international industrial chemical manufacturers, technical research institutes, and universities.

The 7th print edition comprises 40 physical volumes (39 alphabetical text volumes plus an index volume) containing 1,050 major articles. Bibliographic records catalog the content across 17 distinct technical subject categories:

• Organic Chemicals: 172 articles detailing commercial synthesis pathways, industrial feedstocks, and functional derivatives.
• Processes and Process Engineering: 122 articles covering distillation, extraction, absorption, filtration, and unit operations.
• Inorganic Chemicals: 108 articles covering industrial minerals, commodity acids, alkalis, and industrial gases.
• Special Topics: 83 articles addressing cross-cutting technical, logistical, and legal considerations in chemistry.
• Polymers and Plastics: 72 articles detailing polymerization mechanisms, resin compounding, and processing techniques.
• Metals and Alloys: 69 articles reviewing extractive metallurgy, smelting, and specialty alloy fabrication.
• Pharmaceuticals: 67 articles detailing active pharmaceutical ingredient (API) synthesis and formulation engineering.
• Fat, Oil, Food and Feed, Cosmetics: 61 articles on lipid processing, oleochemicals, and food additives.
• Materials: 55 articles covering ceramics, composites, electronic substrates, and functional coatings.
• Analytical Techniques: 52 articles describing industrial chromatography, spectroscopy, and process analytical technology.
• Dyes and Pigments: 46 articles reviewing chromophores, optical brighteners, and industrial coloration processes.
• Environmental Protection and Industrial Safety: 34 articles covering industrial wastewater treatment, flue gas abatement, and hazard containment.
• Biochemistry and Biotechnology: 33 articles detailing industrial fermentation, enzymatic biocatalysis, and bioseparations.
• Energy: 26 articles covering petroleum refining, coal gasification, battery technology, and fuel cells.
• Renewable Resources: 21 articles addressing biomass valorization and bio-based platform chemicals.
• Agrochemicals: 19 articles detailing fertilizers, herbicides, fungicides, and formulation chemistry.
• Chemical Reactions: 18 articles detailing commercial-scale catalytic hydrogenations, oxidations, and halogenations.

On Wiley Online Library, Ullmann’s Online receives continuous bi-monthly updates (newly added or comprehensively revised articles every two months), ensuring that emerging environmental regulations, green chemistry methodologies, and novel catalytic processes are integrated into the reference corpus.

How to Search or Use It

Navigating Ullmann’s Encyclopedia effectively requires using platform-specific retrieval strategies to target relevant process chapters without retrieving irrelevant records across broader journal platforms:

1. Establish Institutional Authentication: Access Wiley Online Library through your university library, government agency, or corporate technical library proxy (via IP authentication, Shibboleth, or OpenAthens). Confirm your institution appears in the header.
2. Navigate to the Work Homepage: Go directly to the Ullmann’s reference portal (DOI 10.1002/14356007). Avoid searching from the global platform homepage, which queries across millions of unrelated journal articles.
3. Use the “Search in this book” Field: Enter your search terms directly into the dedicated encyclopedia search bar to restrict results exclusively to Ullmann’s chapters.
4. Query by Specific Chemical and Process Terms: Enter exact chemical names, IUPAC designations, common trade names, or CAS Registry Numbers to locate product monographs.
5. Apply Exact Phrase Quotations and Boolean Operators: Use double quotes for multi-word phrases (such as "fluidized bed" or "sulfuric acid") and uppercase Boolean operators (AND, OR, NOT) to refine candidate chapters.
6. Employ Wildcard Truncation: Use an asterisk (*) for root expansion (e.g., catalys* to capture catalyst, catalysts, and catalytic) or a question mark (?) for single-character variations.
7. Filter by Publication Cycle and Subject: Utilize sidebar filters to review chapter publication dates, distinguishing established foundational volumes from recent bi-monthly electronic updates.

Strengths and Limits

Understanding where Ullmann’s fits within research workflows requires balancing its technical depth against its organizational boundaries:

• Authoritative Industrial Depth: Unlike general chemistry textbooks, Ullmann’s provides concrete process engineering details, including operating temperature and pressure ranges, reactor residence times, catalyst lifetimes, and flow diagrams.
• Verified Industrial Authorship: Monographs are contributed by practicing industrial chemists and process engineers, providing practical insight into commercial scalability and byproduct valorization.
• Regular Bi-Monthly Maintenance: Regular revision cycles ensure that industrial health and safety standards, emissions thresholds, and economic considerations reflect contemporary practice.
• Commercial Subscription Access: Ullmann’s is a proprietary reference work behind an institutional paywall. Researchers without university or corporate library subscriptions cannot access full-text chapters.
• Commercial Process Orientation: Ullmann’s is designed around scalable commercial operations; researchers seeking bench-scale synthetic methodologies or exploratory chemical probes will find reaction databases more immediate.

Alternatives

Researchers in chemical manufacturing rely on several complementary databases and reference platforms. While Ullmann’s excels at industrial-scale process engineering and chemical manufacturing technology, complementary tools cover bench synthesis, reaction indexing, and mathematical process equations:

Platform / Reference	Primary Scope	Publisher / Provider	Coverage Format	Key Strength
Ullmann’s Encyclopedia	Industrial chemistry, chemical manufacturing, process engineering	Wiley-VCH	1,050 major articles (40 volumes / online)	Comprehensive process flowsheets, industrial plant parameters, and bi-monthly updates
Kirk-Othmer Encyclopedia	Chemical technology, industrial engineering, materials science	John Wiley & Sons	27 print volumes and continuous online edition	North American industrial technology focus, environmental compliance, and materials technology
SciFinder vs Reaxys	Substance indexing, reaction pathways, molecular property lookup	CAS / Elsevier	Hundreds of millions of chemical substances and reactions	Precision molecular structure, reaction condition searching, and retrosynthetic planning
Reaxys	Chemical synthesis, reaction discovery, experimental property data	Elsevier	Organometallic, organic, and inorganic reaction repository	Validated experimental property filters, multi-step synthesis routes, and bioactivity data
Perry’s Chemical Engineers’ Handbook	Chemical process calculations, equipment sizing, transport phenomena	McGraw-Hill	Comprehensive handbook reference work	Fast mathematical formulas, physical property lookup tables, and unit operation equations

Frequently Asked Questions

Is Ullmann’s Encyclopedia of Industrial Chemistry peer reviewed?

Yes. All articles in Ullmann’s Encyclopedia of Industrial Chemistry are authored by qualified subject experts from industry and academia and undergo formal peer review overseen by an international Editorial Advisory Board.

How often is Ullmann’s Online updated?

Ullmann’s Online on Wiley Online Library is updated bi-monthly (every two months), with new articles and updated revisions published throughout each calendar year.

Who founded Ullmann’s Encyclopedia?

The encyclopedia was founded by German chemist Professor Fritz Ullmann in Berlin, with the first edition published in 1914 under the title Enzyklopädie der technischen Chemie.

How does Ullmann’s differ from reaction databases like SciFinder or Reaxys?

Reaction databases like SciFinder and Reaxys index individual chemical reactions, literature abstracts, and substance structures for synthetic chemists at the bench. Ullmann’s provides comprehensive process monographs detailing how chemicals are produced at commercial scale, including plant equipment, energy balances, unit operations, and industrial safety controls.

Sources

The factual data, bibliographic structures, and platform details documented on this page derive from the following primary sources:

• Library of Congress. Bibliographic Record and Table of Contents for Ullmann’s Encyclopedia of Industrial Chemistry (Control Number 2014450987). URL: https://catdir.loc.gov/catdir/enhancements/fy1603/2014450987-t.html. Date: 2026-11-08.
• Glucksman Library, University of Limerick. Ullmann’s Encyclopedia of Industrial Chemistry Resource Announcement. URL: https://www.ul.ie/library/news/ullmanns-encyclopedia-of-industrial-chemistry-now-available-as-an-e-resource. Date: 2026-11-08.
• Dalhousie University Libraries. New Resource: Ullmann’s Encyclopedia of Industrial Chemistry. URL: https://blogs.dal.ca/libraries/2024/08/new-resource-ullmanns-encyclopedia-of-industrial-chemistry-6th-edition/. Date: 2026-11-08.
• Crossref. Metadata Record for Ullmann’s Encyclopedia of Industrial Chemistry (DOI 10.1002/14356007). URL: https://api.crossref.org/works/10.1002/14356007. Date: 2026-11-08.