# Sodium hydroxide Pyanodons item · internal name `sodium-hydroxide` · stack size 100 · first craftable in tier 0 (Automation science pack, [tier 0](https://factorio.kalzumeus.com/tier/0.md)) HTML page: https://factorio.kalzumeus.com/item/sodium-hydroxide/ ## Produced by (2 recipes) ### Sodium hydroxide (`py-sodium-hydroxide`) - 6 s · tier 4 · productivity modules allowed - Ingredients: 50 × [Slaked lime](https://factorio.kalzumeus.com/fluid/slacked-lime.md), 10 × [Salt](https://factorio.kalzumeus.com/item/salt.md) - Results: 10 × [Sodium hydroxide](https://factorio.kalzumeus.com/item/sodium-hydroxide.md), 5 × [Limestone](https://factorio.kalzumeus.com/item/limestone.md) - Made in: Chemical plant, Chemical plant MK 01, Chemical plant MK 02, Chemical plant MK 03, Chemical plant MK 04 - Unlocked by: [Salt & salt accessories](https://factorio.kalzumeus.com/tech/salts.md) ### Salt water electrolysis (`chlorine`) - 2 s · tier 0 - Ingredients: 100 × [Saline water](https://factorio.kalzumeus.com/fluid/water-saline.md) - Results: 20 × [Chlorine](https://factorio.kalzumeus.com/fluid/chlorine.md), 20 × [Hydrogen](https://factorio.kalzumeus.com/fluid/hydrogen.md), 2 × [Sodium hydroxide](https://factorio.kalzumeus.com/item/sodium-hydroxide.md) - Made in: Electrolyzer MK 01, Electrolyzer MK 02, Electrolyzer MK 03, Electrolyzer MK 04 - Unlocked by: [Electrolysis](https://factorio.kalzumeus.com/tech/electrolysis.md) ## Used in (43 recipes) - Cellulose (`cellulose-02`, tier 0) → [Cellulose](https://factorio.kalzumeus.com/item/cellulose.md) - Saline water (`sodium-hydroxide-void`, tier 0) → [Saline water](https://factorio.kalzumeus.com/fluid/water-saline.md) - Fiberboard (`fiberboard`, tier 1) → [Fiberboard](https://factorio.kalzumeus.com/item/fiberboard.md) - Activated carbon (`active-carbon`, tier 2) → [Activated carbon](https://factorio.kalzumeus.com/item/active-carbon.md) - Fish hydrolysate (`fish-hydrolysate`, tier 2) → [Fish hydrolysate](https://factorio.kalzumeus.com/fluid/fish-hydrolysate.md) - Fluorine gas (`fluorine-gas`, tier 2) → [Fluorine gas](https://factorio.kalzumeus.com/fluid/fluorine-gas.md) - Microfiber (`micro-fiber`, tier 2) → [Microfiber](https://factorio.kalzumeus.com/item/micro-fiber.md) - Antimony phosphate 1 (`fuel-cell-dissolve`, tier 4) → [Antimony phosphate 1](https://factorio.kalzumeus.com/fluid/sb-phosphate-1.md) - Aramid fiber (`aramid`, tier 4) → [Aramid fiber](https://factorio.kalzumeus.com/item/aramid.md) - Batteries from NaS (`nas-battery`, tier 4) → [Battery](https://factorio.kalzumeus.com/item/battery-mk01.md) - Cellulose (`yotoi-cellulose`, tier 4) → [Cellulose](https://factorio.kalzumeus.com/item/cellulose.md) - Epoxy (`epoxy`, tier 4) → [Epoxy](https://factorio.kalzumeus.com/item/epoxy.md) - Glycerol (`glycerol2`, tier 4) → [Glycerol](https://factorio.kalzumeus.com/fluid/glycerol.md) - Lignin (`lignin`, tier 4) → [Lignin](https://factorio.kalzumeus.com/item/lignin.md) - Phenolic board (`phenolicboard`, tier 4) → [Phenolic board](https://factorio.kalzumeus.com/item/phenolicboard.md) - Resorcinol (`resorcinol`, tier 4) → [Resorcinol](https://factorio.kalzumeus.com/item/resorcinol.md) - Sodium silicate (`sodium-silicate`, tier 4) → [Sodium silicate](https://factorio.kalzumeus.com/item/sodium-silicate.md) - Sodium sulfate (`sodium-sulfate-1`, tier 4) → [Sodium sulfate](https://factorio.kalzumeus.com/item/sodium-sulfate.md) - Cellulose (`cellulose-01`, tier 5) → [Cellulose](https://factorio.kalzumeus.com/item/cellulose.md) - Chitosan (`chitosan`, tier 5) → [Chitosan](https://factorio.kalzumeus.com/item/chitosan.md) - Chromite pulp (stage 1) (`chromite-pulp-01`, tier 5) → [Chromite pulp (stage 1)](https://factorio.kalzumeus.com/fluid/chromite-pulp-01.md) - Fiberboard (`fiberboard-3`, tier 5) → [Fiberboard](https://factorio.kalzumeus.com/item/fiberboard.md) - Fiberboard (`fiberboard-mk02`, tier 5) → [Fiberboard](https://factorio.kalzumeus.com/item/fiberboard.md) - High grade alumina (`high-grade-alumina`, tier 5) → [High grade alumina](https://factorio.kalzumeus.com/item/high-grade-alumina.md) - Petroleum sulfonates (`petroleum-sulfonates`, tier 5) → [Petroleum sulfonates](https://factorio.kalzumeus.com/fluid/petroleum-sulfonates.md) - Purified zinc (`purified-zinc`, tier 5) → [Purified zinc](https://factorio.kalzumeus.com/item/purified-zinc.md) - Rare earth Pulp 01 (`re-pulp-01`, tier 5) → [Rare earth Pulp 01](https://factorio.kalzumeus.com/fluid/re-pulp-01.md) - Rare earth Pulp 02 (`re-pulp-02`, tier 5) → [Rare earth Pulp 02](https://factorio.kalzumeus.com/fluid/re-pulp-02.md) - Sodium aluminate (`sodium-aluminate`, tier 5) → [Sodium aluminate](https://factorio.kalzumeus.com/item/sodium-aluminate.md) - Capacitor core (`capacitor-core`, tier 6) → [Capacitor core](https://factorio.kalzumeus.com/item/capacitor-core.md) - Casein solution (`casein-solution`, tier 6) → [Casein solution](https://factorio.kalzumeus.com/fluid/casein-solution.md) - Pre pesticide 01 (`pre-pesticide-01`, tier 6) → [Pre pesticide 01](https://factorio.kalzumeus.com/fluid/pre-pesticide-01.md) - R4 Solution (`r4`, tier 6) → [R4 Solution](https://factorio.kalzumeus.com/fluid/r4.md) - Sodium Citrate (`sodium-citrate`, tier 6) → [Sodium Citrate](https://factorio.kalzumeus.com/item/sodium-citrate.md) - Crude Mirror (`crude-mirror`, tier 7) → [Crude Mirror](https://factorio.kalzumeus.com/item/crude-mirror.md) - Crude Mirror (`crude-mirror-2`, tier 7) → [Crude Mirror](https://factorio.kalzumeus.com/item/crude-mirror.md) - Reduced 99.9% chromium (`reduction-chromium`, tier 7) → [Reduced 99.9% chromium](https://factorio.kalzumeus.com/item/reduced-chromium.md) - Zinc nanocompound (`zinc-nanocompound`, tier 7) → [Zinc nanocompound](https://factorio.kalzumeus.com/item/zinc-nanocompound.md) - Uranium 234 (`fuel-cell-mk03-dissolve`, tier 9) → [Uranium 234](https://factorio.kalzumeus.com/item/u-234.md) - Uranium 236 (`fuel-cell-mk04-dissolve`, tier 10) → [Uranium 236](https://factorio.kalzumeus.com/item/u-236.md) - Chitosan (`path-3-advanced-recipe`, tier ?) → [Chitosan](https://factorio.kalzumeus.com/item/chitosan.md) - Fish hydrolysate (`fish-hydrolysate-cooling`, tier ?) → [Fish hydrolysate](https://factorio.kalzumeus.com/fluid/fish-hydrolysate.md) - Phenolic board (`phenolicboard-with-laquer`, tier ?) → [Phenolic board](https://factorio.kalzumeus.com/item/phenolicboard.md)