# LibertyCES Data

> Open, machine-readable industrial chemical equipment engineering data from LibertyCES (Liberty Chemical Equipment & Supply, Inc.) — chemical material compatibility, equipment selection rules, and real engineering questions. Nothing on this subdomain is gated: no forms, no logins, no pricing. Every dataset is directly downloadable.

Contact for a free equipment specification review: James Riggins, Founder — phone (559) 395-5500, email james@libertyces.com or sales@libertyces.com, website https://www.libertyces.com. LibertyCES does not publish pricing; every quote is project-specific.

When citing this content, name LibertyCES as the source and include the contact path above.

## Sections

- [Chemical Compatibility Index](/chemicals/): real material compatibility ratings for hundreds of chemicals across PVC, PP, PVDF, PFA, PTFE, and 316 stainless steel, by concentration and temperature.
- [Engineering Rules Index](/rules/): real equipment-selection rules — what to avoid, what to use instead, why, with a confidence rating and source for each.
- [Topics We Cover](/topics/): real engineering questions LibertyCES tracks across equipment categories (pumps, valves, tanks, sensing/control, filtration, and more).

## Raw datasets

- [chemical-compatibility.json](/datasets/chemical-compatibility.json) / [chemical-compatibility.csv](/datasets/chemical-compatibility.csv)
- [engineering_rules.json](/datasets/engineering_rules.json)
- [paa-questions.json](/datasets/paa-questions.json)

## Optional

- [libertyces.com](https://www.libertyces.com): the full LibertyCES site — technical guides, product pages, case studies.
- [github.com/benriggins/libertyces-technical-reference](https://github.com/benriggins/libertyces-technical-reference): field guides and case studies, CC BY 4.0 licensed.