Tool · Storage compatibility

Chemical storage compatibility matrix

See what can — and can't — be stored together, by GHS hazard class, chemical reactivity, and ADR transport class.

3,652 substances 13 hazard classes GHS · CAMEO · ADR

Pick a substance to see its storage verdict

You'll see what to never store with, what to keep separate, and its ADR transport class.

01 · Method

How this tool works

Three independent data sources decide a verdict. Class-level guidance for a whole hazard family lives on the storage class pages.

GHS / CLP

GHS hazard class

Each substance is sorted into a storage class from its GHS hazard codes, so incompatible classes can be flagged.

CAMEO

Chemical reactivity

Reactivity data identifies pairs that can react dangerously when a spill or leak brings them into contact.

ADR 2025

ADR transport

Transport data adds the UN number, ADR class, and packing group for moving the substance by road.

This tool is a reference aid, not a substitute for a substance's Safety Data Sheet or professional judgment. Always verify storage and handling against SDS sections 7 and 10, and follow local regulations.
Data sources: GHS/CLP hazard classifications, CAMEO Chemicals (NOAA), ADR 2025 (UNECE).

SDS Manager

This tool gives you the verdict; the sheet gives you the authority for it. Every verdict above still has to be checked against SDS sections 7 and 10 for the exact product on your shelf — which means having the current revision of each supplier's sheet, not the one filed three years ago. For keeping that library central, version-controlled and QR-accessible at the store, the solution we recommend is SDS Manager. It also offers SDS authoring and a broader EHS suite.

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Link to or cite this tool

Adding Chemical Storage Compatibility Matrix to a resource list

Every page here is free to link to — no permission needed, no registration behind the link, no affiliate strings attached. A short form that fits most guides:

Chemical Storage Compatibility Matrix — which chemicals can share a shelf — storage classes derived from GHS hazard classes and CAMEO reactive groups for thousands of substances. Free, no registration. https://ghspictograms.com/tools/chemical-storage-compatibility/

HTML for a web page

<a href="https://ghspictograms.com/tools/chemical-storage-compatibility/">Chemical Storage Compatibility Matrix</a> — which chemicals can share a shelf — storage classes derived from GHS hazard classes and CAMEO reactive groups for thousands of substances.

Data sources and the rule for printed numbers are on the About page. Found a wrong value? [email protected] — include the page address and the source you checked it against.