Stack Exchange — chemistry.stackexchange.com
The content of chemistry.stackexchange.com (https://chemistry.stackexchange.com/), a Stack Exchange question-and-answer site, as published in the Stack Exchange Data Dump of April 2024 on the Internet Archive. The posts table holds 283,237 rows: 97,674 posts (44,825 questions, 52,010 answers, 401 tag wiki excerpts, 401 tag wikis, 31 posts of type 6 and 6 posts of type 7) and 185,563 comments, written between 17 February 2012 and 31 March 2024. Beside it are 109,634 user accounts, 607,499 votes, 158,460 badges awarded, 381 tags, 383,268 post revisions and 14,046 links between posts. Every answer keeps the question it answers and every comment the post it was written on, so the threads can be rebuilt. The Internet Archive item describes the dump as anonymised; the votes table names the voter in only 1,193 rows.
Cite this dataset at
stackexchange-chemistry.echo.directory
Analytics
The full graph has 21,197 nodes; this view shows the 1,000-node sample the pipeline drew for display. Node size is centrality, colour is community.
Topic 0
Topic 1
Topic 2
Topic 3
Topic 4
Topic 5
Topic 6
Topic 7
Computed over the full corpus.
Record
- Catalog key
stackexchange-chemistry-stackexchange-com- Authors
- Stack Exchange, Inc.
- Year
- 2024
- Source paper
- Stack Exchange Data Dump
- License
- CC BY-SA 3.0 / 4.0 (by contribution date) (CC-BY-SA-3.0 AND CC-BY-SA-4.0)
- Records
- 328,238
- Nodes
- 21,197
- Edges
- 43,218 (directed)
- Nodes are
- user (Stack Exchange account)
- Edges are
- answer collaboration (A answered B's question)
- Attributes
- nodes have attributes; edges have attributes
- Text corpus
- question titles, post bodies, comment text, tag names
- Languages
- en
- Collected
- 2012/2024 (2010s, 2020s)
- Tasks
- From the graph: link prediction, community detection
- Region
- Global (inferred: the platform is used worldwide)
Provenance
- Originally published at
- https://archive.org/details/stackexchange link checked
- Original files as received
- The source files, unconverted, kept for reference: mirrored on echo.directory on 2026-10-09, 120.3 MB across 1 files. Checksums in MANIFEST.json. For use, start with the data package below.
- Data package
- Version 1.0.0 of this dataset as an ECHO Data Package: posts (283,237 rows), users (109,634 rows), x_votes (607,499 rows), x_badges (158,460 rows), x_tags (381 rows), x_post_history (383,268 rows), x_post_links (14,046 rows).
- Structure
- Temporal (timestamped), Node attributes, Text, Threaded conversations
How to cite
BibTeX
@misc{echo2026,
title = {ECHO: Exploratory Compendium of Humanity Online},
author = {Switzer, Braden and Zafarani, Reza},
year = {2026},
url = {https://echo.directory},
note = {Syracuse University}
}
@misc{stackexchange_2024,
title = {Stack Exchange Data Dump},
author = {{Stack Exchange, Inc.}},
year = {2024},
month = {apr},
publisher = {Internet Archive},
url = {https://archive.org/details/stackexchange}
} APA
Switzer, B., & Zafarani, R. (2026). ECHO: Exploratory Compendium of Humanity Online [Data repository]. Syracuse University. https://echo.directory
Stack Exchange, Inc. (2024). Stack Exchange — chemistry.stackexchange.com [Data set]. https://stackexchange-chemistry.echo.directory/
MLA
Switzer, Braden, and Reza Zafarani. ECHO: Exploratory Compendium of Humanity Online. Syracuse University, 2026, echo.directory.
Stack Exchange, Inc. Stack Exchange — chemistry.stackexchange.com. 2024, stackexchange-chemistry.echo.directory/.