Nitrogen triple point
The nitrogen triple point is the unique temperature and pressure at which nitrogen can coexist as a solid, liquid, and gas.
How big is it?
63.15 K
Also -346 °F
Temperature · specified
A little perspective
Nitrogen triple point is 14.21 K cooler than Boiling nitrogen.
Boiling nitrogen: Boiling nitrogen is nitrogen gas produced when liquid nitrogen is heated at normal atmospheric pressure.
Measurements, assumptions & sources +
Nitrogen triple point
A curated nitrogen triple point comparison anchor. The representative value and any stated range preserve the backlog measurement convention; operating or experimental conditions can change real observations.
Defined examples — our methodology
The marked temperature is calibrated. Unmeasured illustration details are representative.
Boiling nitrogen
Approximate normal boiling point at one atmosphere.
NIST Chemistry WebBook — Nitrogen phase data
The marked temperature is calibrated. Unmeasured illustration details are representative.
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Why this measurement?
Why we use 63.15 K
For comparison, this page uses temperature. The record labels this value specified, so the stated convention rather than an inferred average controls the comparison.
A curated nitrogen triple point comparison anchor. The representative value and any stated range preserve the backlog measurement convention; operating or experimental conditions can change real observations.
The identifying illustration and the numerical comparison remain separate. How calibrated comparisons work →
Recorded properties
Nitrogen triple point dimensions and measurements
| Property | Selected value | Recorded range | Basis |
|---|---|---|---|
| 63.15 K | Not recorded | specified |
Around this scale
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These links use compatible temperature records, ordered around the selected value.
Nearest lower value · TemperatureNeon normal boiling point27.1 KNeon normal boiling point is the temperature at which neon transitions from liquid to gas under standard atmospheric pressure.Around the same scale · TemperatureArgon normal boiling point87.3 KArgon normal boiling point is the temperature at which argon transitions from liquid to gas under standard atmospheric pressure.Nearest higher value · TemperatureBoiling nitrogen77.36 KBoiling nitrogen is nitrogen gas produced when liquid nitrogen is heated at normal atmospheric pressure.Sources and method
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The source records and measurement method remain available for inspection.
There’s always another scale
Follow your curiosity.
TemperatureBoiling nitrogen77.36 KBoiling nitrogen is nitrogen gas produced when liquid nitrogen is heated at normal atmospheric pressure.TemperatureBoiling helium4.22 KBoiling helium is helium in its liquid state at its normal boiling point under standard atmospheric pressure.
TemperatureCosmic microwave background2.725 KThe cosmic microwave background is faint thermal radiation filling the universe, left over from the early stages after the Big Bang.TemperatureAbsolute zero0 KAbsolute zero is the lowest temperature permitted by thermodynamics, where a system has the least thermal energy available to it.TemperatureUltracold atom cloud1 × 10⁻⁷ KAn ultracold atom cloud is a collection of atoms cooled to temperatures near absolute zero, used in advanced physics experiments.TemperatureDry ice sublimation point-78.5 °CThe dry ice sublimation point is the temperature at which solid carbon dioxide turns directly into gas at standard atmospheric pressure.TemperatureArgon normal boiling point87.3 KArgon normal boiling point is the temperature at which argon transitions from liquid to gas under standard atmospheric pressure.TemperatureWater triple point0.01 °CThe water triple point is the unique temperature and pressure at which water can exist simultaneously as solid, liquid, and vapour in equilibrium.