Item #: SCP-X

Object Class: Euclid

Special Containment Procedures: SCP-X is contained within a 2,000 litre capacity double-walled gas tank. The inner wall is composed of 30mm thick polytetrafluoroethylene (Teflon) while the outer wall is composed of 20mm thick Type 316 austenitic stainless steel. The interstitial space between the walls (min. 50mm) is reserved for the intake of coolant such as liquid nitrogen. Temperature inside the tank is regulated and maintained at -200°C (±4 °C) and strictly ensured to not exceed above -73°C under any circumstance. The gas tank is secured inside a 5m x 5m x 5m chamber enclosed by 2m thick reinforced concrete walls.

Microphones are positioned on opposite ends of the tank and constantly monitored by Level 2 staff. Any vague or loud noise observed from audio recordings is to be reported immediately to the Site Director. Staff assigned on duty are to routinely document the temperature and pressure readings of SCP-X as well as report any form of physical damage or corrosion detected within the chamber.

Standard containment breach protocols advise sealing off and flooding the entire containment unit with liquid nitrogen or other adequate coolant via mechanical methods. In severe circumstances, the immediate deployment of MTF Beta-7 (“Maz Hatters”) may be requested at the discretion of the Site Director.

As of ██/02/20██, all further research and testing pertaining to SCP-X is strictly prohibited until further notice.

First visual confirmation of SCP-X. Photo taken via B7-RRV-III.

Description: SCP-X is a colourless, odourless gas which exhibits sequential anomalous properties as its temperature increases. While the entity appears to lack either a melting or boiling point, it will begin to manifest additional specific chemical/physical properties as it passes each temperature threshold. In order to assess the severity of resulting hazards, preliminary researchers assigned to SCP-X have categorised it into several “stages.”