diff --git a/electronics.md b/electronics.md
index 73f47b7..01d9178 100644
--- a/electronics.md
+++ b/electronics.md
@@ -3,4 +3,5 @@
 [[Home|/home]] - Electronics
 
 * [Tools and materials](electronics/bom)
-* [PCB fabrication](electronics/pcbfabrication)
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+* [PCB fabrication](electronics/pcbfabrication)
+* [Disposal of chemicals](electronics/disposal)
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