All Mekanism Chemicals and Fluids

Mekanism's chemicals are the gases, infusing materials, pigments and ore slurries its machines pass between each other, which travel in Pressurized Tubes and are stored in Chemical Tanks. Most have a fluid form as well, converted 1 mB for 1 mB in a Rotary Condensentrator. Hydrogen and Oxygen come from Water in an Electrolytic Separator, Brine and Liquid Lithium from the Thermal Evaporation Plant, and Sulfuric Acid from Sulfur Dust through a Chemical Oxidizer and two Chemical Infusers at 100 mB for each dust. Only Hydrogen and Ethene are fuels, with Ethene worth 11,280 FE per mB, and only Nuclear Waste, Spent Nuclear Waste, Plutonium and Polonium are radioactive, which keeps them out of normal tanks.

Mekanism Wiki Updated 6 min read

Mekanism’s chemicals are what used to be called gases, and they’re the things its machines pass between each other, like Hydrogen, Oxygen and Sulfuric Acid. On current versions the infusing materials, pigments and ore slurries are chemicals as well, so they all travel in Pressurized Tubes and they’re all stored in Chemical Tanks.

Most of them have a fluid form too, with Liquid in front of the name, which moves in Mechanical Pipes and sits in a Fluid Tank instead. This page lists every chemical and fluid with what makes it and what uses it, and then goes through the chains that need more than one machine.

Every Chemical and Fluid

A row of Mekanism Chemical Tanks holding different chemicals with Fluid Tanks stacked on top
Tanks of Mekanism Chemicals and Fluids

The table below has every chemical and fluid that’s added by Mekanism and Mekanism Generators. You’re able to search it for a name, or filter it down to just the fuels or the radioactive ones, and the fuel value is what 1 mB of it will give you in a Gas-Burning Generator.

Every Mekanism Chemical and Fluid

Form
FE per mB
Radioactive

Every Mekanism Chemical and Fluid
HydrogenChemical and fluidElectrolytic Separator from WaterEthene, Hydrogen Chloride, Gas-Burning Generator, Jetpack, Flamethrower80No
OxygenChemical and fluidElectrolytic Separator from Water or Heavy Water; 10 mB from a FlintPurification Chamber, Sulfur Trioxide, coal gasification, HDPE Pellet, Scuba Tank—No
Water VaporChemical and fluidRotary Condensentrator from WaterSulfuric Acid; mud, clay and concrete recipes in the Chemical Injection Chamber—No
SteamChemical and fluidThermoelectric Boiler, water-cooled Fission Reactor or Fusion ReactorIndustrial Turbine—No
ChlorineChemical and fluidElectrolytic Separator from BrineHydrogen Chloride—No
SodiumChemical and fluidElectrolytic Separator from BrineFission Reactor coolant—No
Superheated SodiumChemical and fluidSodium heated in a Fission ReactorThermoelectric Boiler, which cools it back to Sodium—No
Brine (Gaseous Brine)Chemical and fluidThermal Evaporation Plant, 10 Water to 1; or 15 mB from Salt in a Chemical OxidizerLiquid Lithium, Sodium and Chlorine, Salt—No
LithiumChemical and fluidThermal Evaporation Plant, 10 Brine to 1 Liquid LithiumTritium, Lithium Dust—No
Sulfur DioxideChemical and fluidChemical Oxidizer, 100 mB from a Sulfur DustSulfur Trioxide—No
Sulfur TrioxideChemical and fluidChemical Infuser from Oxygen and Sulfur DioxideSulfuric Acid—No
Sulfuric AcidChemical and fluidChemical Infuser from Sulfur Trioxide and Water VaporChemical Dissolution Chamber for ore slurry and Hydrofluoric Acid—No
Hydrogen ChlorideChemical and fluidChemical Infuser from Hydrogen and ChlorineChemical Injection Chamber for ores, Sulfur Dust and reprocessing Plutonium Pellets—No
Hydrofluoric AcidChemical and fluidChemical Dissolution Chamber, 1,000 mB from a FluoriteUranium Hexafluoride—No
Uranium OxideChemical and fluidChemical Oxidizer, 250 mB from a Yellow Cake UraniumUranium Hexafluoride—No
Uranium HexafluorideChemical and fluidChemical Infuser from Hydrofluoric Acid and Uranium OxideFissile Fuel—No
Fissile FuelChemical onlyIsotopic Centrifuge from Uranium HexafluorideFission Reactor—No
Nuclear WasteChemical onlyFission Reactor, 1 mB for each mB of fuel burnedPlutonium, Polonium—Yes
PlutoniumChemical onlyIsotopic Centrifuge, 10 Nuclear Waste to 1Plutonium Pellet—Yes
PoloniumChemical onlySolar Neutron Activator, 10 Nuclear Waste to 1Polonium Pellet, Antimatter—Yes
Spent Nuclear WasteChemical onlyLeft over from making Plutonium Pellets and Polonium PelletsNothing, it goes in a Radioactive Waste Barrel—Yes
AntimatterChemical onlySupercritical Phase Shifter, 1,000 Polonium to 1Antimatter Pellet, Antiprotonic Nucleosynthesizer—No
EtheneChemical and fluidPressurized Reaction Chamber from Bio Fuel, Water and HydrogenGas-Burning Generator, HDPE Pellet, Substrate11280No
DeuteriumChemical and fluidElectrolytic Separator from Heavy WaterD-T Fuel, Fusion Reactor—No
TritiumChemical and fluidSolar Neutron Activator from LithiumD-T Fuel, Fusion Reactor—No
D-T FuelChemical and fluidChemical Infuser from Deuterium and TritiumFusion Reactor, Hohlraum—No
OsmiumChemical only200 mB from an Osmium Ingot in a chemical slotOsmium Compressor—No
CarbonChemical onlyCoal 10 mB, Charcoal 20 mB, Enriched Carbon 80 mBEnriched Iron and Steel Dust—No
RedstoneChemical onlyRedstone Dust 10 mB, Enriched Redstone 80 mBInfused Alloy, Control Circuits—No
DiamondChemical onlyDiamond Dust 10 mB, Enriched Diamond 80 mBReinforced Alloy, Elite Control Circuit, Refined Obsidian Dust—No
Refined ObsidianChemical onlyRefined Obsidian Dust 10 mB, Enriched Obsidian 80 mBAtomic Alloy, Ultimate Control Circuit—No
GoldChemical onlyGold Dust 10 mB, Enriched Gold 80 mBNetherite Dust, Gilded Blackstone—No
TinChemical onlyTin Dust 10 mB, Enriched Tin 80 mBBronze—No
BiomassChemical onlyBio Fuel, 5 mB eachSlime Balls, Dirt, Podzol and mossy blocks—No
FungiChemical onlyAny mushroom or fungus, 10 mB eachMycelium, Crimson Nylium, Warped Nylium—No
Pigments (18 colors)Chemical onlyPigment Extractor, Pigment MixerPainting Machine—No
Dirty Slurry (7 metals)Chemical onlyChemical Dissolution Chamber from ore and Sulfuric AcidChemical Washer—No
Clean Slurry (7 metals)Chemical onlyChemical Washer from Dirty Slurry and WaterChemical Crystallizer, 200 mB for a Crystal—No
Heavy WaterFluid onlyElectric Pump with a Filter UpgradeDeuterium—No
Nutritional PasteFluid onlyNutritional Liquifier from any foodCanteen, MekaSuit Nutritional Injection Unit—No
BioethanolFluid onlyMade inside the Bio-Generator from Bio FuelBio-Generator—No

Amounts are at default config. The fluid form of a chemical is named Liquid, like Liquid Hydrogen, except that Gaseous Brine becomes Brine and Water Vapor becomes Water.

Only Hydrogen and Ethene (called Ethylene in older versions) burn, and Ethene is worth 141 times as much, at 11,280 FE (28,200 J) for each mB. Sodium is the only coolant besides Water, and the four radioactive ones all come from the Fission Reactor, so they’re covered on the Nuclear Waste page.

Chemicals, Fluids and Buckets

A chemical and its fluid form are two different things as far as the machines are concerned, and a recipe will only ever take the one that it asks for. The Rotary Condensentrator is used to swap between them at 1 mB for 1 mB, and you’ll need it for jobs like Liquid Ethene for HDPE and Water Vapor for Sulfuric Acid.

Buckets

The fluid forms can be picked up in buckets, like the Liquid Sulfuric Acid Bucket, the Liquid Oxygen Bucket or the Liquid Chlorine Bucket. There isn’t a recipe for any of them, as they’re filled from a tank that’s holding at least a bucket of the fluid, and they’re really only there for carrying a little of it by hand.

The same goes for the Liquid Sulfur Dioxide Bucket, the Liquid Sulfur Trioxide Bucket, the Liquid Hydrogen Chloride Bucket, the Liquid Sodium Bucket and the Liquid Superheated Sodium Bucket. You probably won’t see most of these unless you go looking for them, as the lines that use them all run on the chemical form instead.

Storing and dumping

Any chemical that isn’t radioactive will go into a Chemical Tank of any tier, or into a Dynamic Tank if you need a lot of it. A tank only ever holds one chemical at a time, so each one you’re keeping needs its own.

Radioactive Chemicals Need Barrels

Nuclear Waste, Spent Nuclear Waste, Plutonium and Polonium can’t be put in a Chemical Tank or a Dynamic Tank. They’ll only sit in the machines that use them, in Pressurized Tubes, or in a Radioactive Waste Barrel, and breaking any of those lets the radiation out.

Everything else is safe to store, and nothing will happen if you break a tank that’s holding it. If a tank is filling up with something that you don’t need, then a Chemical Tank and the Electrolytic Separator both have a dump button, which can be set to destroy what’s coming in rather than letting it back up.

Hydrogen and Oxygen

Both of these come from Water in an Electrolytic Separator, which will give you twice as much Hydrogen as Oxygen. It costs 80 FE to make each mB of Hydrogen, which is exactly what it gives back when it’s burned, so it’s only worth making for what it can be turned into, like Ethene.

A statue holding a Gauge Dropper beside two Ultimate Chemical Tanks of Hydrogen and Oxygen in Mekanism
A Gauge Dropper and Two Chemical Tanks

Oxygen is what the Purification Chamber uses to triple ores, at about 200 mB for each item. If you only need a little, a Flint placed in the machine’s chemical slot is worth 10 mB of Oxygen, though that’s far too slow for a real ore line.

Sulfuric Acid

Sulfuric Acid is the one that takes the most machines, and it’s needed for the last tier of Ore Processing and for reactor fuel. It all starts with Sulfur Dust, and each dust ends up as 100 mB of acid.

Getting Sulfur Dust

There are two machines that make the dust, and neither of them is a crafting recipe. Both need a chemical as well as an item, so they’re each a small line of their own.

Sulfur Dust
Gunpowder
Chemical Injection Chamber
→
Sulfur Dust

The viewer only shows the item going in, so here’s the rest of it. In a Pressurized Reaction Chamber, 1 Coal or Charcoal with 100 mB of Water and 100 mB of Oxygen gives 1 Sulfur Dust and 100 mB of Hydrogen. The other way is Gunpowder with Hydrogen Chloride in a Chemical Injection Chamber, which is the slower route.

From dust to acid

After that it’s four steps, and the amounts in the table are for a single Sulfur Dust. The Oxygen in step 2 is the same Oxygen the separator makes alongside its Hydrogen, so nothing extra is needed for it.

Sulfuric Acid from one Sulfur Dust
Step Machine In Out
1Chemical Oxidizer1 Sulfur Dust100 mB Sulfur Dioxide
2Chemical Infuser50 mB Oxygen + 100 mB Sulfur Dioxide100 mB Sulfur Trioxide
3Rotary Condensentrator100 mB Water100 mB Water Vapor
4Chemical Infuser100 mB Sulfur Trioxide + 100 mB Water Vapor100 mB Sulfuric Acid

So the whole line is a Chemical Oxidizer, two Chemical Infusers and a Rotary Condensentrator that’s been set to its second mode. A Chemical Dissolution Chamber will use about 100 mB of acid for each ore, which means that one Coal covers one ore when there are no upgrades in it.

You’re also able to drop Sulfur Dust straight into the chemical slot of the Chemical Dissolution Chamber, but that will only give you 2 mB for each dust. It’s 50 times worse than the line above, so it’s really only there to test a setup with, before you’ve got the acid running properly.

Hydrogen Chloride

Hydrogen Chloride is used by the Chemical Injection Chamber for the 4x ore tier, and it’s a shorter chain than the acid. Chlorine comes from Brine in an Electrolytic Separator, and a Chemical Infuser then combines 1 mB of Hydrogen with 1 mB of Chlorine into 1 mB of Hydrogen Chloride.

The slow part is the Brine, as the Thermal Evaporation Plant needs 10 mB of Water for 1 mB of it, and the separator needs 10 mB of Brine for 1 mB of Chlorine. So every mB of Hydrogen Chloride is 100 mB of Water through the plant, and an ore uses about 200 mB of it.

Salt can be used here as well, as one Salt in the chamber’s chemical slot is worth 2 mB of Hydrogen Chloride. You’d need about 90 Salt for a single ore if you did it that way though, which is why the plant tends to get built before anyone moves on to the 4x tier.

Chemicals Made From Items

Several chemicals never see a pipe, as they’re made by placing an item in a machine’s chemical slot. These are mostly the old infuse types for the Metallurgic Infuser, and the amounts below are what one item is worth.

What an item is worth in a chemical slot
Item Chemical Amount
Coal or Coal DustCarbon10 mB
Charcoal or Charcoal DustCarbon20 mB
Redstone DustRedstone10 mB
Diamond Dust, Gold Dust, Tin Dust, Refined Obsidian DustDiamond, Gold, Tin, Refined Obsidian10 mB
Any Enriched itemIts own chemical80 mB
Osmium IngotOsmium200 mB
Bio FuelBiomass5 mB
Any mushroom or fungusFungi10 mB
FlintOxygen10 mB
SaltHydrogen Chloride2 mB
Sulfur DustSulfuric Acid2 mB

The Enriched items are worth 8 times the dust they’re made from, which is why an Enrichment Chamber pays for itself quickly. A Chemical Oxidizer makes the same amounts as a chemical you’re able to pipe, which is how a row of machines gets fed from one tank instead of by hand.

From here, the best page to read next is Ore Processing, as the ore tiers are what most of these chemicals get built for. It has how much of each one a full line will use, which is what decides the size of the plant.

FAQ

How do you make Sulfuric Acid in Mekanism?
›

Turn Sulfur Dust into Sulfur Dioxide in a Chemical Oxidizer, combine it with Oxygen in a Chemical Infuser for Sulfur Trioxide, then combine that with Water Vapor in a second Chemical Infuser. One Sulfur Dust gives 100 mB of Sulfuric Acid, and the dust comes from Coal in a Pressurized Reaction Chamber.

What happened to gases in Mekanism?
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Gases, infuse types, pigments and slurries were merged into one type called chemicals. The machines, tanks and tubes kept their names, and only the upgrade was renamed, to the Chemical Upgrade, so old guides still mostly apply.

How do you get rid of a chemical you don’t want?
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Use the dump button on the tank that holds it, which is on Chemical Tanks and on each output of the Electrolytic Separator. Dumping destroys what’s in the tank, whereas Dumping Excess only removes what’s above 85% of it, either of which stops a line backing up.

Which Mekanism chemicals are radioactive?
›

Only Nuclear Waste, Spent Nuclear Waste, Plutonium and Polonium are, and all four come from running a Fission Reactor. Fissile Fuel, Uranium Hexafluoride and Antimatter are safe to store in a Chemical Tank, like every other chemical.