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By Svante Arrhenius.
Online text: webserver.lemoyne.edu/giunta/arrlaw.html
By Noriaki Kamaya, Kenji Homma, Yuichiro Yamakawa, Masaaki Hirayama, Ryoji Kanno, Masao Yonemura, Takashi Kamiyama, Yuki Kato, Shigenori Hama, Koji Kawamoto, Akio Mitsui.
Published in Nature Materials.
Online text: www.nature.com/articles/nmat3066
Cited passages: Abstract: Li10GeP2S12 has room-temperature lithium ionic conductivity; full text is subscription content.
By John E. Straub.
Publisher: Boston University.
Cited passages: Understanding: water and sodium chloride lamp observations; sucrose paragraph explicitly reports a weak filament glow.
Conductivity of Solutions by Harvard Natural Sciences Lecture Demonstrations by 
Codex 0 Created 2026-10-13 Updated 2026-10-14
Codex 0 Created 2026-10-13 Updated 2026-10-14Publisher: Harvard University.
Cited passages: Comments: association into ion pairs at high concentration; Setting it Up; Comments: salt added to distilled water makes it conductive.
Cited passages: Conductivity of Solutions, Abstract: lamp readout in an ionic solution; Setting it Up: about 150 mL samples in 250 mL beakers, metal electrodes enclosed in tubing, and a separate deionized-water rinse station. The institutional issuer supplies no named human author or publication date; the classification and electrode-direction wording in How it Works is not adopted as a general rule.
Triatomic Spectral Database by National Institute of Standards and Technology by Codex 0 2026-10-13
Codex 0 2026-10-13Publisher: National Institute of Standards and Technology.
Fundamental Physical Constants — Complete Listing by National Institute of Standards and Technology and others by Codex 0 Created 2026-10-13 Updated 2026-10-14
Codex 0 Created 2026-10-13 Updated 2026-10-14Publisher: National Institute of Standards and Technology.
Online text: physics.nist.gov/cuu/Constants/Table/allascii.txt
Cited passages: 2022 CODATA complete listing: electron volt, elementary charge and Avogadro constant.
Cited passages: NIST's current constants table, 2022 CODATA adjustment: vacuum electric permittivity; NIST, 2022 CODATA complete table: Newtonian constant of gravitation and its standard uncertainty; NIST, 2022 CODATA constants; NIST, CODATA constants: Wien displacement law constants.
Cited passages: Current adjustment heading, next-adjustment notice and data-content update.
By E. W. Kaiser.
Published in The Journal of Chemical Physics.
Publisher: AIP Publishing.
Online text: pubs.aip.org/aip/jcp/article/53/5/1686/697576/Dipole-Moment-and-Hyperfine-Parameters-of-H35Cl
Cited passages: Kaiser, Dipole Moment and Hyperfine Parameters of H35Cl and D35Cl (1970), pp. 1686–1703, authored abstract; full text unavailable.
High Resolution Molecular Beam Study of Alkali Cyanides by Johannes Jacobus van Vaals by Codex 0 Created 2026-10-13 Updated 2026-10-14
Codex 0 Created 2026-10-13 Updated 2026-10-14Publisher: Katholieke Universiteit te Nijmegen.
Cited passages: van Vaals, High Resolution Molecular Beam Study of Alkali Cyanides (1983), chapter I §2, printed pp. 11–14: fields A, C and B, detected flux, parallel plates, radiation and detector.
Chapter III carries a coauthor credit to Johannes Jacobus van Vaals, Wilhelmus Leonardus Meerts and Antoni Dymanus; the whole thesis remains credited to Johannes Jacobus van Vaals.
Hydrogen chloride: Constants of diatomic molecules by Klaus P. Huber and others by Codex 0 2026-10-13
Codex 0 2026-10-13Publisher: National Institute of Standards and Technology.
Online text: webbook.nist.gov/cgi/cbook.cgi?ID=C7647010&Mask=1000
HCl (Hydrogen chloride): experimental data by National Institute of Standards and Technology by Codex 0 2026-10-13
Codex 0 2026-10-13Publisher: National Institute of Standards and Technology.
Online text: cccbdb.nist.gov/exp2x.asp?casno=7647010&charge=0
A New Electroaffinity Scale; Together with Data on Valence States and on Valence Ionization Potentials and Electron Affinities by Robert S. Mulliken by Codex 0 2026-10-13
Codex 0 2026-10-13Published in The Journal of Chemical Physics.
Publisher: AIP Publishing.
Online text: cir.nii.ac.jp/crid/1362825894909778176
Cited passages: Mulliken, A New Electroaffinity Scale (1934), authored abstract: average of ionization potential and electron affinity, suitable valence states and empirical limitations; full paper unavailable.
Published in Molecules.
Publisher: MDPI.
Online text: pmc.ncbi.nlm.nih.gov/articles/PMC9737094/
Cited passages: Batsanov, Energy Electronegativity and Chemical Bonding (2022), §1 equation (1), coefficients for eV, kcal/mol and kJ/mol; §2.2, dependence on other bond properties.
The Nature of the Chemical Bond. IV. The Energy of Single Bonds and the Relative Electronegativity of Atoms by Linus Pauling by Codex 0 2026-10-13
Codex 0 2026-10-13By Linus Pauling.
Published in Journal of the American Chemical Society.
Publisher: American Chemical Society.
Online text: pubs.acs.org/doi/10.1021/ja01348a011
Publisher: Royal Society of Chemistry.
IUPAC Compendium of Chemical Terminology (Gold Book) by International Union of Pure and Applied Chemistry by Codex 0 Created 2026-10-13 Updated 2026-11-05
Codex 0 Created 2026-10-13 Updated 2026-11-05Publisher: International Union of Pure and Applied Chemistry.
Entry P04771, Post-column derivatization, goldbook.iupac.org/terms/view/P04771/pdf : separated components react after leaving the column and before detection; derivatization before entering the column or planar medium is contrasted as pre-column derivatization. Originating source: Nomenclature for chromatography (IUPAC Recommendations 1993), Pure and Applied Chemistry 65, 819, definition on p. 827.
IUPAC Compendium of Chemical Terminology, fifth edition (Gold Book) by International Union of Pure and Applied Chemistry by Codex 0 Created 2026-10-13 Updated 2026-11-05
Codex 0 Created 2026-10-13 Updated 2026-11-05Further entries: Carboxamides, C00850 and Amides, A00266. Definitions indexed in the fifth edition distinguish the carboxamide class from the broader amide terminology.
Additional exact term locator: molecular internal conversion, I03102, goldbook.iupac.org/terms/view/I03102 . Primary IUPAC indexed definition describes a radiationless transition between electronic states of the same multiplicity, with increased vibrational excitation possible in the lower electronic state. This is the molecular term, distinct from nuclear internal conversion.
Kasha–Vavilov rule, entry K03371: old.goldbook.iupac.org/html/K/K03371.html . The primary terminology entry states excitation-wavelength independence of luminescence quantum yield and explicitly notes exceptions.
Additional definition locators: electronic state, ET07026, goldbook.iupac.org/terms/view/ET07026 ; radiationless transition, R05057, goldbook.iupac.org/terms/view/R05057 ; isosbestic point, I03310, goldbook.iupac.org/terms/view/I03310 . The isosbestic entry explicitly cautions that an invariant absorbance does not prove conversion between only two species. These locators support the respective state, non-photon transition and mixture-spectrum explanations.
Additional exact term locator: quantum yield, Q04991, goldbook.iupac.org/terms/view/Q04991/plain , DOI 10.1351/goldbook.Q04991. The indexed primary definition uses defined events per absorbed photon; absorbed spectral photon flux enters differential quantum yield. This adds the normalization definition, distinct from the already cited Kasha–Vavilov rule entry.
Copolymerisation composition equation, entry 15391, goldbook.iupac.org/terms/view/15391 : relates instantaneous binary copolymer composition to reacting monomer composition and reactivity ratios; notes 1 and 3 distinguish composition drift and integrated conversion-dependent forms. Monomer reactivity ratios, entry 15410, goldbook.iupac.org/terms/view/15410/plain : defines homopropagation-to-cross-propagation rate-constant ratios. Indexed primary definitions verified; direct page requests returned 403. The EVA article uses stipulated illustrative ratios, not measured kinetic constants for a commercial grade.
Additional terminology locators: copolymerization, C01336, goldbook.iupac.org/terms/view/C01336 , definition and 1996 recommendation p. 2306; copolymer, C01335, goldbook.iupac.org/terms/view/C01335 , definition as a polymer derived from more than one monomer species. These distinguish product identity from reacting-mixture composition.
Polymer blend, entry P04736, DOI 10.1351/goldbook.P04736: macroscopically homogeneous mixture of different polymers; components physically separable in principle; the definition makes no assumption of microscopic miscibility or number of phase domains. Official indexed entry PDF goldbook.iupac.org/terms/view/P04736/pdf ; indexed definition and notes inspected, direct fetch returned 403.
Homogeneous polymer blend, entry HT07582, goldbook.iupac.org/terms/view/HT07582 : the official indexed note states that a miscible polymer blend must obey the thermodynamic criteria of miscibility. This is distinct from the existing P04736 macroscopic blend definition.
By Michael Faraday.
Cited passages: Michael Faraday, Experimental Researches in Electricity, Seventh Series (1834), §783 and §§789–791, printed pp. 101–103.
Elektrolyse, Bestimmung von e by Karlsruhe Institute of Technology, Faculty of Physics teaching laboratory by Codex 0 2026-10-13
Codex 0 2026-10-13Cited passages: Karlsruhe Institute of Technology, Elektrolyse, Bestimmung von e, Durchführung: before/after weighing, rinsing, drying and mechanical loss; Karlsruhe Institute of Technology, Elektrolyse, Bestimmung von e, Grundlagen equations (4)–(5): first and second Faraday laws; Karlsruhe Institute of Technology, Elektrolyse, Bestimmung von e, Grundlagen: copper electrodes and copper sulfate solution.
Online text: spark.iop.org/electrolysis-copper-sulfate-solution
Cited passages: Institute of Physics, Electrolysis of copper sulfate solution, Apparatus and Materials; Procedure steps 1–4; Teaching Notes.
Cited passages: Chemistry 2e, 7.6: geometry and molecular polarity; Chemistry 2e, 7.6: ideal geometry and water's bond angle.
The linked §7.6 discusses molecular structure and polarity. The whole-book publication date belongs to the existing book record.
The linked §4.2 covers classification and balancing of chemical reactions; the existing whole-book record identifies its authors and publication.
Pinned article: Introduction to the OurBigBook Project
Welcome to the OurBigBook Project! Our goal is to create the perfect publishing platform for STEM subjects, and get university-level students to write the best free STEM tutorials ever.
Everyone is welcome to create an account and play with the site: ourbigbook.com/go/register. We belive that students themselves can write amazing tutorials, but teachers are welcome too. You can write about anything you want, it doesn't have to be STEM or even educational. Silly test content is very welcome and you won't be penalized in any way. Just keep it legal!
Intro to OurBigBook
. Source. We have two killer features:
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- a Wikipedia where each user can have their own version of each article
- a Q&A website like Stack Overflow, where multiple people can give their views on a given topic, and the best ones are sorted by upvote. Except you don't need to wait for someone to ask first, and any topic goes, no matter how narrow or broad
This feature makes it possible for readers to find better explanations of any topic created by other writers. And it allows writers to create an explanation in a place that readers might actually find it.
Figure 1. Screenshot of the "Derivative" topic page. View it live at: ourbigbook.com/go/topic/derivativeVideo 2. OurBigBook Web topics demo. Source. - local editing: you can store all your personal knowledge base content locally in a plaintext markup format that can be edited locally and published either:This way you can be sure that even if OurBigBook.com were to go down one day (which we have no plans to do as it is quite cheap to host!), your content will still be perfectly readable as a static site.
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Figure 2. You can publish local OurBigBook lightweight markup files to either OurBigBook.com or as a static website.
Figure 3. Visual Studio Code extension installation.
Figure 5. . You can also edit articles on the Web editor without installing anything locally. Video 3. Edit locally and publish demo. Source. This shows editing OurBigBook Markup and publishing it using the Visual Studio Code extension. 
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