ModsJava
Chem Lib (1.21.1, 1.20.1) – Library for al132's Mods
Java mod listed for Minecraft 1.20–1.21. Downloads from the MC Java Mods app on Android.
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Chem Lib is a simple mod that adds plenty of chemistry-related items including: All 118 elements, Ingots for all elements that make sense (i.e. all except for gases, mercury, iron, gold, etc), Several dozen chemical compounds, including several “drugs” that have potion effects when consumed.
Screenshots:
Chem Lib Download Links
Quick facts
- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 1.21.1, 1.20.1
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: In MC Java Mods, or directly above on this page.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
File checked by MCModsHub
- Downloads as 2512.mcaddon
- Download size: 13.0 MB
- Download link checked 24 Sept 2026 — working
- Mirrored on our own servers — the download does not depend on the original host
These come from our own check of the pack file, not from the source page.