Ammonium

Ammonium is a basic material with the appearance of yellow/orange platelets.

Source
Ammonium can be found on every planet.
 * Soil Centrifuge
 * 1 Ammonium with a full tank of Soil
 * Trade Platform
 * 1 Ammonium for every Scrap, up to 8 total

Uses
Ammonium can be used to craft the following items:
 * In Small Printer
 * Solid-Fuel Thruster
 * In Chemistry Lab
 * Hydrazine