# R4 Solution

Pyanodons fluid · internal name `r4` · first craftable in tier 6 (pY science pack 3, [tier 6](https://factorio.kalzumeus.com/tier/6.md))
HTML page: https://factorio.kalzumeus.com/fluid/r4/

## Produced by (1 recipes)

### R4 Solution (`r4`)

- 10 s · tier 6
- Ingredients: 100 × [R3 Solution](https://factorio.kalzumeus.com/fluid/r3.md), 5 × [Sodium hydroxide](https://factorio.kalzumeus.com/item/sodium-hydroxide.md)
- Results: 100 × [R4 Solution](https://factorio.kalzumeus.com/fluid/r4.md)
- Made in: Mixer MK 01, Mixer MK 02, Mixer MK 03, Mixer MK 04
- Unlocked by: [Lithium Processing](https://factorio.kalzumeus.com/tech/lithium-processing.md)

## Used in (2 recipes)

- Lithium Carbonate (`mother-liquor`, tier 6) → [Lithium Carbonate](https://factorio.kalzumeus.com/item/lithium-carbonate.md)
- Beacon AM:1 FM:1 (`beacon`, tier 7) → [beacon](https://factorio.kalzumeus.com/item/beacon.md)