Liquid ammonia boiling point
Liquid ammonia boiling point is the temperature at which ammonia boils and turns into gas near atmospheric pressure.
How big is it?
-33.15 °C
Also -27.67 °F
Representative boiling temperature · approximate
A little perspective
Liquid ammonia boiling point is 33.16 K cooler than Water triple point.
Water triple point: The water triple point is the unique temperature and pressure at which water can exist simultaneously as solid, liquid, and vapour in equilibrium.
Measurements, assumptions & sources +
Liquid ammonia boiling point
A deliberately rounded 240 K boiling-temperature anchor for ammonia near atmospheric pressure. Pressure and mixture purity materially change the boiling point.
Defined examples — our methodology
The marked representative boiling temperature is calibrated. Unmeasured illustration details are representative.
Water triple point
The triple point of water is 273.16 K for a specified isotopic composition at its equilibrium pressure. It is distinct from ordinary freezing water at atmospheric pressure.
IAPWS — Fundamental physical constants of water
The marked triple-point temperature is calibrated. Unmeasured illustration details are representative.
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Why this measurement?
Why we use -33.15 °C
For comparison, this page uses representative boiling temperature. This is labelled approximate; the central value is useful for comparison, while real values or measurement solutions can vary.
A deliberately rounded 240 K boiling-temperature anchor for ammonia near atmospheric pressure. Pressure and mixture purity materially change the boiling point.
The identifying illustration and the numerical comparison remain separate. How calibrated comparisons work →
Recorded properties
Liquid ammonia boiling point dimensions and measurements
| Property | Selected value | Recorded range | Basis |
|---|---|---|---|
| -33.15 °C | Not recorded | approximate |
Around this scale
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These links use compatible temperature records, ordered around the selected value.
Nearest lower value · 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.Around the same scale · TemperatureFreezing water0 °CFreezing water is liquid water at the temperature where it begins to turn into ice under normal pressure.Nearest higher value · TemperatureA freezing winter day-10 °CA freezing winter day is weather cold enough for outdoor water to turn to ice.Sources and method
Want to check the number?
The source records and measurement method remain available for inspection.
There’s always another scale
Follow your curiosity.
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.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.TemperatureA freezing winter day-10 °CA freezing winter day is weather cold enough for outdoor water to turn to ice.TemperatureGallium melting plateau at standard pressure29.76 °CThis is the temperature at which pure gallium changes from solid to liquid under normal atmospheric pressure.TemperatureFreezing water0 °CFreezing water is liquid water at the temperature where it begins to turn into ice under normal pressure.TemperatureRoom temperature20 °CRoom temperature describes indoor air conditions generally considered comfortable for people and suitable for ordinary activities.TemperatureA warm summer day30 °CA warm summer day is weather with outdoor air noticeably hotter than average, typical of summer in temperate regions.TemperatureHuman body temperature37 °CHuman body temperature is the internal temperature maintained by a healthy person under normal conditions.