Salts & brines

Ammonium nitrate · NH4NO3

Name: Ammonium nitrate (NH4NO3) aqueous solution properties
Creator: ProcessConvert
License: https://creativecommons.org/licenses/by/4.0/

Ammonium nitrate (NH4NO3) is a salt; this page gives computed density and dynamic viscosity for aqueous solutions from 2–50 wt% and 25–60 °C.

Values are computed from the Laliberté (2009) aqueous-electrolyte correlation and tabulated over 2–50 wt% and 25–60 °C.

Also known as: Nitram, Ammonium saltpetre, AN
CAS number: 6484-52-2
Tabulated range: 2–50 wt% · 25–60 °C
Properties: Density · Dynamic viscosity · Specific gravity

At 20 wt% · 25 °C

reference snapshot

Density: 1081.0kg/m³
Density: 1.0810g/cm³
Specific gravity: 1.083
Viscosity: 0.875cP

Explore

Read a value at any point

Move the sliders to interpolate between the tabulated grid points. The readout and chart never go outside the validated 2–50 wt% and 25–60 °C range, and every number is interpolated from the committed table below — nothing is computed from a chemistry model in your browser.

Interactive explorer

Values are interpolated between the tabulated grid points below — sliders stay within the validated 2–50 wt% and 25–60 °C range.

Concentration26 wt%

Temperature25 °C

Density: 1107.6 kg/m³
Density: 1.1076 g/cm³
Specific gravity: 1.110
Dynamic viscosity: 0.897 cP

Density (kg/m³) vs wt% NH4NO3 at 25 °C — Ammonium nitrate.

Why it matters

What the numbers tell you

At 20 wt% and 25 °C, aqueous ammonium nitrate has a density of about 1081 kg/m³ (1.081 g/cm³) — roughly 1.08× the density of water. It also has a dynamic viscosity of about 0.875 cP, against roughly 1 cP for water at the same temperature. Those differences carry straight into volume-to-mass conversions, pump and pipe sizing.

Common grades

A few working strengths

Properties at 25 °C for a handful of concentrations in everyday use, read from the committed grid (interpolated between tabulated points where a grade falls between them). The full table follows below.

wt% NH4NO3	°C	Density kg/m³	SG	Viscosity cP
10	25	1038.2	1.040	0.861
20	25	1081.0	1.083	0.875
30	25	1125.8	1.128	0.919
40	25	1173.1	1.175	1.013

Sources

Where the numbers come from

Every value on this page is computed by a deterministic model — none is entered by hand. The generating method and the references it is checked against:

▸Laliberte, M. (2009). A Model for Calculating the Heat Capacity of Aqueous Solutions, with Updated Density and Viscosity Data. J. Chem. Eng. Data 54(6), 1725-1760. doi:10.1021/je8008123
▸Perry's Chemical Engineers' Handbook, 8th ed. (Perry & Green) - Table 2-71 Ammonium Nitrate density, from International Critical Tables, Vol. III, p. 59
▸CRC Handbook of Chemistry and Physics - Aqueous Solubility of Inorganic Compounds at Various Temperatures (solubility bounds for the tabulated range)

Model: thermo==0.4.0 (chemicals==1.3.0) - Laliberte 2009 electrolyte correlation · Generated 2026-06-07

The committed data file for this page is published as JSON on GitHub under CC BY 4.0.

Validation

Checked against a cited value

The model is cross-checked at one independently cited reference point. The page is published only because this check passes.

Property / point	Density · 20 wt% · 25 °C
Cited reference value	1080.6 kg/m3
Model computed	1080.97 kg/m3
Error vs reference	0.034% (tolerance 1%)

Perry's Chemical Engineers' Handbook, 8th ed. - Ammonium Nitrate density (from International Critical Tables). Perry, R.H. & Green, D.W. (eds.), Perry's Chemical Engineers' Handbook, 8th ed. (2008), Table 2-71 Ammonium Nitrate (NH4NO3) (data from International Critical Tables, Vol. III, p. 59): 20 wt% NH4NO3 at 25 degC = 1.0806 g/cm3.

Full tables

Every tabulated point

Rows are temperature (°C); columns are concentration (wt% NH4NO3). Read the cell at the intersection. Specific gravity is density divided by the model water reference of 998.2 kg/m³ at 20 °C.

Density — kg/m³

°C \ wt%	2	4	6	8	10	12	14	16	18	20	22	24	26	28	30	32	34	36	38	40	42	44	46	48	50
25	1005.2	1013.4	1021.6	1029.9	1038.2	1046.6	1055.1	1063.7	1072.3	1081.0	1089.7	1098.6	1107.6	1116.6	1125.8	1135.0	1144.4	1153.8	1163.4	1173.1	1182.9	1192.9	1202.9	1213.1	1223.5
30	1003.7	1011.8	1020.0	1028.2	1036.5	1044.8	1053.3	1061.7	1070.3	1078.9	1087.7	1096.5	1105.4	1114.4	1123.5	1132.7	1142.0	1151.4	1161.0	1170.6	1180.4	1190.3	1200.3	1210.5	1220.8
35	1002.0	1010.1	1018.2	1026.3	1034.6	1042.8	1051.2	1059.6	1068.1	1076.7	1085.4	1094.2	1103.0	1112.0	1121.1	1130.2	1139.5	1148.9	1158.4	1168.0	1177.7	1187.6	1197.6	1207.7	1218.0
40	1000.1	1008.1	1016.2	1024.3	1032.4	1040.7	1049.0	1057.3	1065.8	1074.3	1083.0	1091.7	1100.5	1109.4	1118.5	1127.6	1136.8	1146.2	1155.6	1165.2	1174.9	1184.8	1194.7	1204.9	1215.1
45	998.1	1006.0	1014.0	1022.0	1030.1	1038.3	1046.6	1054.9	1063.3	1071.8	1080.4	1089.1	1097.8	1106.7	1115.7	1124.8	1134.0	1143.3	1152.8	1162.3	1172.0	1181.8	1191.8	1201.9	1212.1
50	995.8	1003.7	1011.6	1019.6	1027.7	1035.8	1044.0	1052.3	1060.6	1069.1	1077.6	1086.3	1095.0	1103.9	1112.8	1121.9	1131.1	1140.4	1149.8	1159.3	1169.0	1178.8	1188.7	1198.8	1209.0
55	993.4	1001.2	1009.1	1017.0	1025.0	1033.1	1041.3	1049.5	1057.8	1066.3	1074.8	1083.4	1092.1	1100.9	1109.8	1118.9	1128.0	1137.3	1146.7	1156.2	1165.8	1175.6	1185.5	1195.6	1205.8
60	990.9	998.6	1006.4	1014.3	1022.3	1030.3	1038.4	1046.6	1054.9	1063.3	1071.8	1080.3	1089.0	1097.8	1106.7	1115.7	1124.9	1134.1	1143.5	1153.0	1162.6	1172.4	1182.3	1192.4	1202.6

Dynamic viscosity — cP (mPa·s)

°C \ wt%	2	4	6	8	10	12	14	16	18	20	22	24	26	28	30	32	34	36	38	40	42	44	46	48	50
25	0.874	0.867	0.863	0.861	0.861	0.861	0.863	0.866	0.870	0.875	0.881	0.888	0.897	0.907	0.919	0.933	0.949	0.968	0.989	1.013	1.040	1.071	1.107	1.147	1.193
30	0.784	0.779	0.777	0.776	0.777	0.779	0.782	0.786	0.791	0.797	0.804	0.812	0.821	0.832	0.844	0.858	0.874	0.892	0.912	0.935	0.961	0.991	1.025	1.063	1.106
35	0.708	0.705	0.704	0.705	0.707	0.710	0.713	0.718	0.724	0.730	0.737	0.746	0.756	0.766	0.779	0.793	0.808	0.826	0.846	0.868	0.893	0.922	0.954	0.990	1.030
40	0.644	0.642	0.642	0.644	0.646	0.650	0.655	0.660	0.666	0.673	0.681	0.689	0.699	0.710	0.722	0.736	0.752	0.769	0.788	0.810	0.834	0.861	0.892	0.926	0.964
45	0.589	0.588	0.589	0.591	0.594	0.599	0.604	0.609	0.616	0.623	0.631	0.640	0.650	0.661	0.673	0.687	0.702	0.719	0.737	0.758	0.782	0.808	0.837	0.870	0.906
50	0.541	0.541	0.542	0.545	0.549	0.554	0.559	0.565	0.572	0.579	0.588	0.597	0.607	0.618	0.630	0.643	0.658	0.675	0.693	0.713	0.735	0.761	0.788	0.820	0.855
55	0.499	0.500	0.502	0.505	0.510	0.515	0.520	0.526	0.533	0.541	0.549	0.558	0.568	0.579	0.591	0.605	0.619	0.635	0.653	0.673	0.694	0.718	0.745	0.775	0.809
60	0.463	0.464	0.466	0.470	0.475	0.480	0.486	0.492	0.499	0.507	0.515	0.524	0.534	0.545	0.557	0.570	0.584	0.600	0.617	0.636	0.658	0.681	0.707	0.735	0.767

Typical values

Ammonium nitrate solution properties at 25 °C

At 25 °C, 10 wt% ammonium nitrate has a density of about 1038.2 kg/m³ and a dynamic viscosity of about 0.861 cP. At 25 °C, 30 wt% ammonium nitrate has a density of about 1125.8 kg/m³ and a dynamic viscosity of about 0.919 cP. At 25 °C, 40 wt% ammonium nitrate has a density of about 1173.1 kg/m³ and a dynamic viscosity of about 1.013 cP.

Limitations

Before you use these numbers

▸Laliberte (2009) aqueous-electrolyte correlation for NH4NO3-water, density and viscosity. Tabulated for 2-50 wt% over 25-60 degC. The 25 degC floor is the lower bound of the correlation's NH4NO3 density data (fitted 25-95 degC); the table is not extrapolated below it. Heat capacity is not tabulated (the correlation's NH4NO3 heat-capacity data is a single 25 degC point). Ammonium nitrate is very soluble (about 68 wt% at 25 degC), so the 50 wt% ceiling stays below saturation. Concentrations are NH4NO3 by mass; this page is solution-property data only and carries no formulation content. Values are for preliminary design; verify against vendor data for critical service.
▸Values are tabulated only inside the 2–50 wt% and 25–60 °C ranges shown; the correlation is not extrapolated beyond them here.
▸Figures are for a pure ammonium nitrate–water system. Commercial grades contain impurities (for example chloride in some caustic grades) that shift density and viscosity; check the supplier's data sheet for a specific product.
▸Use for preliminary design; verify for critical service.

Related calculators

Related guides

Other substances

← All substances

Built and reviewed by a practising process engineer. About ProcessConvert →