# Polishing compound

Pyanodons item · internal name `cerium-oxide` · stack size 100 · first craftable in tier 7 (Production science pack, [tier 7](https://factorio.kalzumeus.com/tier/7.md))
HTML page: https://factorio.kalzumeus.com/item/cerium-oxide/

## Produced by (1 recipes)

### Polishing compound (`cerium-oxide`)

- 10 s · tier 7 · productivity modules allowed
- Ingredients: 5 × [Rare earth oxides](https://factorio.kalzumeus.com/item/reo.md), 50 × [Vacuum](https://factorio.kalzumeus.com/fluid/vacuum.md), 1 × [Oxalatic acid](https://factorio.kalzumeus.com/item/oxalic-acid.md), 1 × [Plastic bar](https://factorio.kalzumeus.com/item/plastic-bar.md), 1 × [Ammonium chloride](https://factorio.kalzumeus.com/item/ammonium-chloride.md)
- Results: 1 × [Polishing compound](https://factorio.kalzumeus.com/item/cerium-oxide.md)
- Made in: Chemical plant, Chemical plant MK 01, Chemical plant MK 02, Chemical plant MK 03, Chemical plant MK 04
- Unlocked by: [Thermosolar Power - Stage 2](https://factorio.kalzumeus.com/tech/thermal-mk02.md)

## Used in (5 recipes)

- Polished Glass Surface (`polished-glass-surface`, tier 7) → [Polished Glass Surface](https://factorio.kalzumeus.com/item/polished-glass-surface.md)
- Mirror MK03 (`mirror-mk03`, tier 8) → [Mirror MK03](https://factorio.kalzumeus.com/item/mirror-mk03.md)
- Mirror MK04 (`mirror-mk04`, tier 9) → [Mirror MK04](https://factorio.kalzumeus.com/item/mirror-mk04.md)
- Sawblade MK 03 (`py-sawblade-module-mk03`, tier ?) → [Sawblade MK 03](https://factorio.kalzumeus.com/item/py-sawblade-module-mk03.md)
- Sawblade MK 04 (`py-sawblade-module-mk04`, tier ?) → [Sawblade MK 04](https://factorio.kalzumeus.com/item/py-sawblade-module-mk04.md)