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Ammonia - Density at Varying Temperature and Pressure

Online calculator, figures and tables showing density and specific weight of ammonia at temperatures ranging -50 to 425 °C (-50 to 800 °F) at atmospheric and higher pressure - Imperial and SI Units

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Density, ρ, has units typically [kg/m3] or [lb/ft3], and is defined by the ratio of the mass to the volume of a substance:

ρ = m/V                      [1]

where     m = mass, units typically [kg] or [lb]
               V = volume, units typically [m3] or [ft3]

Specific weight, γ, has units typically [N/m3] or [lbf/ft3]  is defined by the ratio of the weight to the volume of a substance:

γ = (m * g)/V = ρ * g                [2]

where    g = acceleration due to gravity, units typically [m/s2] and value on Earth usually given as 9.80665 [m/s2] or 32.17405 [ft/s2]  

Tabulated values of ammonia density at given temperature and atmospheric pressure, SI and Imperial units, are given below the figures. 

See also Ammonia: Properties at Gas-Liquid Equilibrium Conditions, Thermal Conductivity at Varying Temperature and Pressure, Thermophysical properties and Vapour pressure at gas-liquid equilibrium

Online Ammonia Gas Density Calculator

The calculator below can be used to calculate the ammonia gas density and specific weight at given temperatures and atmospheric pressure.
The output density is given as kg/m3, lb/ft3, lb/gal(US liq) and sl/ft3.  Specific weight is given as N/m3 and lbf/ ft3.

Note! Temperature must be within the ranges -33 - 425 °C, -28 - 800 °F, 240 - 700 K and 432 - 1260 °R to get valid values.

Temperature

Choose the actual unit of temperature:

°C °F K °R

Ammonia density and specific weight at 1 bara:

Ammonia density specific weight C_F

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Ammonia gas and liquid density at varying  temperature and given pressures:
Ammonia density pressure gas liquid C

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Ammonia density at given temperature (°C) and 1 bara pressure:

Temperature Density Specific weight
[°C] [g/l], [kg/m3] [mol/dm3] [lb/ft3] [N/m3]
-35 0.8843 0.0519 0.0552 8.672
-10 0.7938 0.0466 0.0496 7.785
0 0.7625 0.0448 0.0476 7.478
10 0.7336 0.0431 0.0458 7.194
20 0.7069 0.0415 0.0441 6.932
30 0.6822 0.0401 0.0426 6.690
40 0.6593 0.0387 0.0412 6.466
50 0.6380 0.0375 0.0398 6.257
75 0.5909 0.0347 0.0369 5.795
100 0.5509 0.0323 0.0344 5.402
125 0.5162 0.0303 0.0322 5.062
150 0.4858 0.0285 0.0303 4.764
175 0.4586 0.0269 0.0286 4.497
200 0.4341 0.0255 0.0271 4.257
250 0.3917 0.0230 0.0245 3.842
300 0.3573 0.0210 0.0223 3.503
350 0.3295 0.0194 0.0206 3.232
400 0.3058 0.0180 0.0191 2.999

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Ammonia density at given temperature (°F) and 14.5 psia pressure:

Temperature Density Specific weight
[°F] [lb/ft3] [sl/ft3*10-3] [g/l],[kg/m3] [lbf/ft3]
-35 0.05577 1.733 0.8933 0.0558
0 0.05119 1.591 0.8200 0.0512
20 0.04889 1.519 0.7831 0.0489
40 0.04678 1.454 0.7494 0.0468
60 0.04486 1.394 0.7185 0.0449
80 0.04309 1.339 0.6902 0.0431
100 0.04147 1.289 0.6642 0.0415
120 0.03997 1.242 0.6403 0.0400
150 0.03794 1.179 0.6078 0.0379
200 0.03502 1.088 0.5610 0.0350
250 0.03254 1.012 0.5213 0.0325
300 0.03040 0.945 0.4870 0.0304
350 0.02852 0.886 0.4569 0.0285
400 0.02684 0.834 0.4299 0.0268
500 0.02399 0.746 0.3842 0.0240
600 0.02172 0.675 0.3480 0.0217
700 0.01993 0.620 0.3193 0.0199
800 0.01828 0.568 0.2928 0.0183

Density unit converter 

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