Asdjky

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! class="unsortable" |Description

|Oxygen

(O₂)

|All humans, pets, and lizard-people need more than 16 kPa of oxygen in the air or internals to breathe. Any less and the creature starts to suffocate.

It is required to oxidize a [[plasma]] fire. A room with 100% plasma will not burn. More oxygen causes plasma fires to increase in heat and size. Oxygen mixed suddenly with heated plasma causes explosions when in a tank. See [[Temperature]]. Oxygen is an invisible gas. To detect it, use your [[PDA]] or a wall mounted [[Air Alarm]]. Oxygen [[canister]]s are marked in blue. [[Emergency Oxygen Tank]]s, filled with about 300 kPa, spawn in your emergency [[Internals Box]]. Larger [[Oxygen Tank]]s are in [[Emergency Locker]]s all across ship, which start with about 600 kPa. Can be mined from Lavaland with a bit of ingenuity, but generally will never need to be done unless using an extreme tritium synthesis setup.

|Nitrogen

(N₂)

|Not particularly more heat absorbent than any other gas. However, it cannot burn at all, which may slow down fires simply by taking up space. It can reduce the heat penalty on the SM, which will keep temperatures down.

|A 1:4 gasmix of O₂ and N₂ (20% O₂, 80% N₂). The station is filled with this.

Air in SS13 can be seen, strangely enough, as a 'watered down'-O₂, with N₂ being the water. Optimal atmospheric pressure for humans is 101.3 kPa. Due to the minimum of 16 kPa of O₂, the pressure of 101.3 kPa cannot be changed too much without the situation becoming excessively lethal. Under 16 % oxygen? You start dying. Under 90 kPa due to fire from a while ago? You start dying. Be mindful of this. Air canisters, marked in white, can be found in emergency storages.

|Carbon Dioxide

(CO₂)

|Nitrous Oxide

(N₂O)

Makes you laugh at low doses and at higher ones puts you to sleep. If using this as a sleep gas mix '''do not forget''' to mix in at least 16 kPa of O₂, or you will suffocate someone. Used as an anesthetic in the surgery room and as a "pacifier" in security for especially robust criminals. Can be found in Atmospherics in red canisters with a white stripe on them.

|BZ gas is a potent hallucinogenic that also put slimes into stasis, degenerates changeling chemicals and suppresses their hivemind. As a side effect, affected people will take low brain damage, but breathing it long enough will cause brain death. An extremely insidious gas that is much harder to detect than N₂O or Plasma, or at least until the hallucinations start.

BZ is formed when N₂O and Plasma are combined at low pressures. The optimal pressure for this is 0.5 atmosphere, or about 50 kPa. Efficiency might be higher if you get it even lower somehow, though. If mixed in a tank with oxygen, it can be used for internals, to [[Chaplain|encourage spiritual development]]. Breathing it also produces [[Guide_to_chemistry#BZ_Metabolites|BZ Metabolites]].

|Nitryl

(NO₂)

The result of heating Oxygen and Nitrogen to 25000k at a 1:1 ratio, with at least 5 moles of N₂O. The requisite heat is often only produced in tritburns, but the necessary heat energy as well as the natural heat decay caused by water vapor causes nitryl production via heat exposure over a turf (such as the burn chamber) very slow and generally not worth it. Fusion temperatures are advised.

|Radioactive, flammable gas that is used in plenty of chemical reactions. Created by heating loads of O₂ with Plasma. Also, radiation collectors convert plasma into this. Tritium, though not naturally radioactive, releases radiation when it is burned. Might not want to put this into any engine unless you plan to set it on fire.

|Extremely inert, Hyper-Noblium stops other gases from reacting. (Specifically, it stops reactions when >5 moles). The rarest and most precious gas in the game and for good reason. Each mole synthesized contributes 1000 research points into the R&D servers. Synthesizing 500 moles in a shift is usually enough to get all the researches.

|An experimental gas that makes you stun and sleep immune while also speeding you up. While incredibly cumbersome to manufacture, its effects give the enterprising technician a decisive advantage in combat as it has no addictive or negative effects. Try giving it to security so they can robust traitors and lings, or don't because security is more likely to arrest you for making meth gas because they don't have any idea what the hell stimulum is. Generates 40 Research Points per mole synthesized, making it a very nice gas overall if you can somehow produce large batches of it.

|A non-reactive Oxygen substitute that delivers eight times as much O₂ to the bloodstream, with as little 3 kPa minimum pressure required for internals!

Formed by irradiating tiles with 2 part CO₂ 1 part O₂ in the air. The [[Supermatter]] is often the greatest source of pluoxium, though it would require adding CO₂ into the cooling loop. Depending on the efficiency of the setup, you can get between just enough pluoxium to fill an internals tank or so much that you consume all the CO₂ within the station's atmospheric reserve tanks. Be careful when attempting the former however, pumping the SM full of CO₂ and O₂ risks a tritium delamination which is nigh impossible to contain unless your setup is extremely robust.

|On temperature lower than 0°C (273.15 K) Freon will create an endothermic reaction with O₂, meaning it will absorb heat from the atmosphere, down to a minimum close to 50K. Adding Proto-Nitrate will catalyze the reaction so that it may begin at temperatures up to 310 kelvin, which is above room temperature. This reaction produces CO₂ and if the temperature is between 120-160K the reaction has a small chance to also produce solid sheets of hot ice.

Breathing freon causes burn damage. Freon is made by combining a minimum of 40 moles Plasma, 20 moles CO₂, and 20 moles BZ in a endothermic reaction at temperatures above 473.15 K. The consumption ratio for the reaction is 6 Plasma : 3 CO₂ : 1 BZ. Higher heat improves the rate of reaction.

|Hot ice is a solid byproduct of the cooled Freon+O₂ reaction at 120-160K. It holds a great amount of power inside. Can be ground to produce 25 units of Hot Ice Slush.

|Hydrogen is a flammable gas which when ignited burns similarly to tritium. It is also an integral part of fusion reactions. Hydrogen is made by electrolyzing Water Vapor with an electrolyzer machine. Hydrogen is solidified in a reaction with BZ as catalyst at high heat and pressure (over 1e6 for both) to produce metal hydrogen , which can be used to make armor, a fireaxe, and golems.

|Healium is a red gas which acts as a stronger sleeping agent than N₂O, while healing burns, bruises, suffocation and toxin damage. It is created by exposing Freon to BZ in an exothermic reaction at temperatures between 25-300 Kelvin (keep it chill). Freon is consumed at around 11x the rate of BZ.

When between temperatures of 250-300k, Pluonium solidifies gaseous Plasma into bars When between temperatures of 260-280k, Pluonium reacts with BZ to cause localized hallucinations in an exothermic reaction

|Halon acts as a fire suppressant by removing oxygen in the air (while producing CO₂) in an exothermic reaction if the air temperature is above 100 C or 373.15 K. The oxygen suppression rate is 20 O₂ : 1 Halon. It is created by combining BZ and Tritium in an endothermic reaction between 30-55 K. Tritium is consumed at around 16x the rate of BZ.

Zauker also decomposes exothermically into a 30/70 O₂/N₂ mix when exposed to Nitrogen.