# Plutonium 238

Pyanodons item · internal name `pu-238` · stack size 100 · first craftable in tier 4 (pY science pack 2, [tier 4](https://factorio.kalzumeus.com/tier/4.md))
HTML page: https://factorio.kalzumeus.com/item/pu-238/

## Produced by (6 recipes)

### Plutonium 238 (`am-241-transmutation`)

- 10 s · tier 7
- Ingredients: 10 × [Americium 241](https://factorio.kalzumeus.com/item/am-241.md)
- Results: 10 × [Plutonium 238](https://factorio.kalzumeus.com/item/pu-238.md), 20 × [Helium](https://factorio.kalzumeus.com/fluid/helium.md)
- Made in: Particle accelerator MK 01, Particle accelerator MK 02, Particle accelerator MK 03, Particle accelerator MK 04
- Unlocked by: [Nuclear Power - Stage 2](https://factorio.kalzumeus.com/tech/nuclear-power-mk02.md)

### Plutonium 238 (`u237-pu238`)

- 0.5 s · tier 7
- Ingredients: 10 × [Uranium 237](https://factorio.kalzumeus.com/item/u-237.md), 20 × [Neutron](https://factorio.kalzumeus.com/fluid/neutron.md)
- Results: 9.99 × [Plutonium 238](https://factorio.kalzumeus.com/item/pu-238.md) (99.9% chance of 10), 0.001 × [Uranium 238](https://factorio.kalzumeus.com/item/u-238.md) (0.1% chance)
- Made in: Particle accelerator MK 01, Particle accelerator MK 02, Particle accelerator MK 03, Particle accelerator MK 04
- Unlocked by: [Nuclear Power - Stage 2](https://factorio.kalzumeus.com/tech/nuclear-power-mk02.md)

### Neutron capture PU-239, PU-240 → PU-238, PU-242 (`plutonium-shuffle-2`)

- 202.84 s · tier 4
- Ingredients: 35 × [Plutonium peroxide](https://factorio.kalzumeus.com/fluid/plutonium-peroxide.md), 1 × [Plutonium 239](https://factorio.kalzumeus.com/item/pu-239.md), 1 × [Plutonium 240](https://factorio.kalzumeus.com/item/pu-240.md)
- Results: 1 × [Plutonium 238](https://factorio.kalzumeus.com/item/pu-238.md), 1 × [Plutonium 242](https://factorio.kalzumeus.com/item/pu-242.md)
- Made in: Neutron absorber MK 01, Neutron absorber MK 02, Neutron absorber MK 03, Neutron absorber MK 04
- Unlocked by: [Nuclear research](https://factorio.kalzumeus.com/tech/uranium-processing.md)

### Plutonium 239 (`plutonium-seperation`)

- 5 s · tier 4
- Ingredients: 5 × [Plutonium Oxide](https://factorio.kalzumeus.com/item/plutonium-oxide.md)
- Results: 0.3 × [Plutonium 238](https://factorio.kalzumeus.com/item/pu-238.md) (2% chance of 15), 7.95 × [Plutonium 239](https://factorio.kalzumeus.com/item/pu-239.md) (53% chance of 15), 3.75 × [Plutonium 240](https://factorio.kalzumeus.com/item/pu-240.md) (25% chance of 15), 2.25 × [Plutonium 241](https://factorio.kalzumeus.com/item/pu-241.md) (15% chance of 15), 7.5 × [Plutonium 242](https://factorio.kalzumeus.com/item/pu-242.md) (50% chance of 15)
- Made in: Particle accelerator MK 01, Particle accelerator MK 02, Particle accelerator MK 03, Particle accelerator MK 04
- Unlocked by: [Nuclear research](https://factorio.kalzumeus.com/tech/uranium-processing.md)

### Plutonium 242 (`plutonium-seperation-2`)

- 5 s · tier 6
- Ingredients: 50 × [MOX Plutonium Oxide](https://factorio.kalzumeus.com/item/plutonium-oxide-mox.md)
- Results: 60 × [Plutonium 238](https://factorio.kalzumeus.com/item/pu-238.md) (40% chance of 150), 10 × [Plutonium 239](https://factorio.kalzumeus.com/item/pu-239.md) (20% chance of 50), 75 × [Plutonium 240](https://factorio.kalzumeus.com/item/pu-240.md) (50% chance of 150), 4 × [Plutonium 241](https://factorio.kalzumeus.com/item/pu-241.md) (5% chance of 80), 90 × [Plutonium 242](https://factorio.kalzumeus.com/item/pu-242.md) (60% chance of 150)
- Made in: Particle accelerator MK 01, Particle accelerator MK 02, Particle accelerator MK 03, Particle accelerator MK 04
- Unlocked by: [Nuclear power](https://factorio.kalzumeus.com/tech/nuclear-power.md)

### Salt Solution (`salt-solution`)

- 20 s · tier 6
- Ingredients: 1 × [Antimony Silicate](https://factorio.kalzumeus.com/item/sb-silicate.md), 150 × [Geothermal Water](https://factorio.kalzumeus.com/fluid/geothermal-water.md)
- Results: 0.01 × [Plutonium 238](https://factorio.kalzumeus.com/item/pu-238.md) (1% chance), 100 × [Salt Solution](https://factorio.kalzumeus.com/fluid/salt-solution.md)
- Made in: Chemical plant, Chemical plant MK 01, Chemical plant MK 02, Chemical plant MK 03, Chemical plant MK 04
- Unlocked by: [Lithium Processing](https://factorio.kalzumeus.com/tech/lithium-processing.md)

## Used in (4 recipes)

- Nuclear sample (`nuclear-sample`, tier 4) → [Nuclear sample](https://factorio.kalzumeus.com/item/nuclear-sample.md)
- Plutonium 239 (`pu-238-transmutation`, tier 7) → [Plutonium 239](https://factorio.kalzumeus.com/item/pu-239.md)
- Space science pack (`space-science-pack`, tier 9) → [Space science pack](https://factorio.kalzumeus.com/item/space-science-pack.md)
- Zungror (`zungror-raising-3-with-funny-rock`, tier ?) → [Zungror](https://factorio.kalzumeus.com/item/zungror.md)