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Technical Documentation

Subject: Chloramines
Prepared by: R. Andreas Spitzer
Date: 2021-07-30
(For ease of use, only the most current version of the technical documentation has been posted below. For complete documentation, including all changes, please see [Chloramines])

This document may contain the words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in all-capital letters, or underlined when the surrounding words are in all-capital letters. When these terms are encountered in the conditions listed in the previous sentence, they are intended to be read as defined by RFC 2119. This specification may be found online at


Real World Information

Trichloramine, or Nitrogen Trichloride (N-Cl3) is a yellow, oily liquid at room temperature and pressure (25°C, 100 kPa). It is commonly derived from mixing ammonia-based chemicals with chorine, and is frequently confused with mustard gas (C4-H8-Cl2-S).

Trichloramine is a lachrymatory agent, irritating the eyes, skin, and mucous membranes. Despite this, it has never been used as a riot gas, due to safety concerns: it is dangerously explosive, and sensitive to light, heat and moderate shock.

Trichloramine melts at -40°C (233 °K) and boils at 71°C (344°K). It has an autoignition point of 93°C (366 °K). It has a chlorine-like odour, a density of 1.653 g/mL, and an enthalpy of formation of 232 kJ/mol.

In Game Information

In game, trichloramine takes two states of matter: gas and liquid.

Gaseous Trichloramine

Gaseous trichloramine is created as a by-product of creating liquid trichloramine. It is both a fuel and an oxidiser, meaning if lit on fire, it has all the parts of the Fire Triangle necessary to sustain itself until it’s completely burned up. If breathed in high quantities, it deals toxin damage at a rate of half that of phoron, by adding the reagent Toxin to the player’s bloodstream.

Gaseous trichloramine has some very loud warning messages far before the point of toxins: the player will receive warnings 2 times later compared to when they’d take damage if they inhale toxin, and will require 10 times as much trichloramine to be in the air before they take toxin damage compared to phoron. However, the warning effects of trichloramine greatly mimic those of carbon dioxide.

Gaseous trichloramine is not a contaminant, unlike phoron. This is an intentional decision for gameplay purposes: if it was a contaminant, it would heavily dissuade medical staff from creating the chemical in the first place. Gaseous trichloramine has a specific heat of 32.75, taken by averaging the specific heats of nitrogen and chlorine. This is slightly higher than that of carbon dioxide (30), but lower than that of nitrous oxide (40). It has a molar mass of 120.3 g/mol.

Air alarms will detect trichloramine, but groups it together with monochloramine and nitrous oxide, under the “other” label. This makes it slightly difficult to safely detect, short of a player lighting a cigarette and seeing if the room they’re in violently catches on fire. Also note that trichloramine is more flammable than it is toxic; it’ll catch fire in far smaller quantities than is necessary to give players warning messages.

Liquid Trichloramine

Liquid trichloramine is created by mixing 1 part ammonia to 1 part kelotane. The result is 0.4 parts liquid trichloramine; the rest is released into the ambient air as gaseous trichloramine.

Liquid trichloramine is a toxin, and behaves identically to the reagent Toxin when ingested or injected into any species. This will change if Vox are ported; it was originally intended as a very powerful healing reagent for Vox and Prometheans. Liquid trichloramine is also a skin irritant, causing minor chemical burns on contact with skin.

Making liquid trichloramine is dangerous: making more than 10 units of liquid at a time will cause an explosion that’s about half that of potassium and water, and will most likely set the room on fire. As noted above, gaseous Trichloramine is both a fuel and an oxidiser, so once it starts burning, it won’t stop until there’s no more trichloramine in the room left to burn. Making 10 units or less of liquid trichloramine just yields a loud pop and gaseous trichloramine.

Liquid trichloramine is an ingredient in making ausgiftrol.


Real World Information

Monochloramine (N-H2-Cl) is a colourless gas at room temperature and pressure (25°C, 100kPa). It is commonly used in low concentration as a cheap source of disinfection for water, as it’s less aggressive than chlorine and more stable against light than hypochlorites, and has a much, much lower risk of reacting with organic materials in water to create chloroform and related carcinogens.

Despite this, monochloramine can cause greater risks to public health than using straight chlorine. It is acidic, and may result in increased lead exposure in old plumbing. In addition, there is evidence that supports a connection between monochloramine exposure and respiratory problems (such as asthma) among competitive swimmers.

Monochloramine is chiefly responsible for the distinct “swimmingpool smell”. It melts at -66 °C (207 °K) and is too unstable to measure a boiling point. It has a molar mass of 51.48 g/mol, and a lethal dose of 935 mg/Kg when tested in a laboratory environment on rats.

In Game Information

For all intents and purposes, monochloramine behaves identically to gaseous trichloramine, but it is not a fuel – just an oxidiser. Its creation was intended for use on planets; having a highly flammable gas as the major atmosphere of a planet is undesirable, as that’d make it easy to light the entire fucking planet on fire.

The only other notable difference between monochloramine and trichloramine is the molar mass: trichloramine is heavier.

Monochloramine cannot be created by the player.

Air alarms detect monochloramine, but group it together with trichloramine and nitrous oxide.


Real World Information

Ausgiftrol does not exist in the real world. Its properties are taken from that of generic antivenin, and expanded to cover both spider and roach venom. The name “ausgiftrol” comes from the German words “aus”, meaning out or off, and “gift”, meaning poison.

Most antivenins act by binding to and neutralising venoms. Side effects are generally limited to shortness of breath and allergic reaction. Antivenins are generally made by injecting small amounts of venom into a domestic animal, then collecting the antibodies.

In-game information

Ausgiftrol is made by mixing 5 parts liquid trichloramine to 2 parts welding fuel and 1 part radium, then cooling it to 253 Kelvin. This creates 4 parts of ausgiftrol. There are no warnings or cautions that need to be observed with creating ausgiftrol, other than what is specified above for the creation of liquid trichloramine.

Ausgiftrol is a potent antivenin, removing blattedin (roach venom) and pararein (spider venom) 4 times as quickly as dylovene. However, ausgiftrol is only 75% as potent of an antitoxin as dylovene. The effects of mixing the two are not tested, however, they should be safe to mix.

Ausgiftrol is administered by injection only; administering it via any other means will have no effect.

Ausgiftrol has no overdose threshold. It metabolizes at a rate of 0.2 units per tick.