History

Oxygen

# Oxygen


:::infobox
| Property | Value |
|----------|-------|
| Gas Name | Oxygen (O₂) |
| Specific Heat | 21.1 J/mol·K |
| Latent Heat | 800 J/mol |
| Minimum Condensation | 6.3 kPa at 56.416 K |
| Max Liquid Temperature | 6000 kPa at 162.2 K |
| Freezing Point | 56.416 K |

![Oxygen](icon-oxygen.png)
:::

## Description

> *"Oxygen provides energy when released in combustion, and also bonds with hydrogen to create [Water](/wiki/water). It is created by [plants](/wiki/plants), as well as from processing [Ice (Oxite)](/wiki/ice-oxite). It is highly flammable at low temperatures."*
> — Stationpedia

**Oxygen**, also referred to as **O₂**, is the basic gas necessary for human survival.  It is is released when smelting certain ore (such as [gold](/wiki/ore-gold)) or by melting [Oxite](/wiki/ice-oxite). It is also produced by plants in [hydroponic trays](/wiki/hydroponic-tray) or the [hydroponics station](/wiki/hydroponic-station) when they photosynthesize.

## Details

Oxygen will condense into **Liquid Oxygen** starting at 162 K / -111.15 °C. The boiling point of Oxygen is 90 K / -183.15 °C at 100 kPa.

Pure Oxygen auto-ignites at 573 K / 300.00 °C when in [atmosphere](/wiki/atmosphere) at any pressure where [volatile gases](/wiki/volatiles) are present. This may be caused by activating a gas-powered [welder](/wiki/welder), engaging any type of crafting stations working with metal (such as an [autolathe](/wiki/autolathe)), or using any firearm, either of which will create a local temperature spike and the follow-up chain reaction.

Oxygen is mainly used in sustaining human life, either in the ambient atmosphere when your helmet is open, or in your suit's oxygen tank. Oxygen's other roles are in the creation of [fuel](/wiki/fuel#gas-fuel), as well as [Nitrous Oxide](/wiki/nitrous-oxide) through the use of a [Nitrolyzer](/wiki/nitrolyzer).

## Notes

- When used as oxidizer in rocket fuel, oxygen has a mass of 62.4 mol/kg.

## Sources

You can collect Oxygen from the following sources:

| Source | Amount |
|---|---|
| [Ice (Oxite)](/wiki/ice-oxite) | 22.5 mol |