Salts & brines

Calcium nitrate · Ca(NO3)2

Name: Calcium nitrate (Ca(NO3)2) aqueous solution properties
Creator: ProcessConvert
License: https://creativecommons.org/licenses/by/4.0/

Calcium nitrate (Ca(NO3)2) is a salt; this page gives computed density and dynamic viscosity for aqueous solutions from 2–40 wt% and 25–60 °C.

Values are computed from the Laliberté (2009) aqueous-electrolyte correlation and tabulated over 2–40 wt% and 25–60 °C.

Also known as: Norwegian saltpetre, Norgessalpeter, Lime nitrate
CAS number: 10124-37-5
Tabulated range: 2–40 wt% · 25–60 °C
Properties: Density · Dynamic viscosity · Specific gravity

At 20 wt% · 25 °C

reference snapshot

Density: 1160.9kg/m³
Density: 1.1609g/cm³
Specific gravity: 1.163
Viscosity: 1.724cP

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 2–40 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 2–40 wt% and 25–60 °C range.

Concentration21 wt%

Temperature25 °C

Density: 1170.1 kg/m³
Density: 1.1701 g/cm³
Specific gravity: 1.172
Dynamic viscosity: 1.784 cP

Density (kg/m³) vs wt% Ca(NO3)2 at 25 °C — Calcium nitrate.

Why it matters

What the numbers tell you

At 20 wt% and 25 °C, aqueous calcium nitrate has a density of about 1161 kg/m³ (1.161 g/cm³) — roughly 1.16× the density of water. It also has a dynamic viscosity of about 1.724 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% Ca(NO3)2	°C	Density kg/m³	SG	Viscosity cP
10	25	1074.9	1.077	1.239
20	25	1160.9	1.163	1.724
30	25	1256.3	1.259	2.427
40	25	1362.2	1.365	3.679

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 2-52 Calcium Nitrate density, from International Critical Tables, Vol. III, p. 67
▸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	1160.2 kg/m3
Model computed	1160.93 kg/m3
Error vs reference	0.063% (tolerance 1%)

Perry's Chemical Engineers' Handbook, 8th ed. - Calcium Nitrate density (from International Critical Tables). Perry, R.H. & Green, D.W. (eds.), Perry's Chemical Engineers' Handbook, 8th ed. (2008), Table 2-52 Calcium Nitrate [Ca(NO3)2] (data from International Critical Tables, Vol. III, p. 67): 20 wt% Ca(NO3)2 at 25 degC = 1.1602 g/cm3.

Full tables

Every tabulated point

Rows are temperature (°C); columns are concentration (wt% Ca(NO3)2). 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
25	1012.0	1027.3	1042.8	1058.7	1074.9	1091.4	1108.3	1125.5	1143.0	1160.9	1179.2	1197.9	1216.9	1236.4	1256.3	1276.5	1297.3	1318.4	1340.1	1362.2
30	1010.5	1025.7	1041.1	1056.9	1073.0	1089.4	1106.2	1123.3	1140.7	1158.5	1176.7	1195.3	1214.2	1233.6	1253.3	1273.5	1294.1	1315.2	1336.7	1358.7
35	1008.8	1023.9	1039.3	1054.9	1070.9	1087.3	1103.9	1120.9	1138.2	1155.9	1174.0	1192.5	1211.3	1230.6	1250.2	1270.3	1290.8	1311.8	1333.2	1355.0
40	1006.9	1021.9	1037.2	1052.8	1068.7	1084.9	1101.4	1118.3	1135.6	1153.2	1171.2	1189.5	1208.3	1227.4	1247.0	1267.0	1287.4	1308.2	1329.6	1351.3
45	1004.8	1019.7	1034.9	1050.4	1066.2	1082.3	1098.8	1115.6	1132.8	1150.3	1168.2	1186.4	1205.1	1224.2	1243.6	1263.5	1283.8	1304.6	1325.9	1347.6
50	1002.6	1017.4	1032.5	1047.9	1063.6	1079.7	1096.0	1112.8	1129.8	1147.3	1165.1	1183.2	1201.8	1220.8	1240.2	1260.0	1280.2	1300.9	1322.1	1343.7
55	1000.1	1014.9	1029.9	1045.2	1060.9	1076.8	1093.1	1109.8	1126.7	1144.1	1161.8	1179.9	1198.4	1217.3	1236.6	1256.3	1276.5	1297.1	1318.2	1339.8
60	997.6	1012.2	1027.1	1042.4	1058.0	1073.8	1090.1	1106.6	1123.5	1140.8	1158.4	1176.5	1194.9	1213.7	1232.9	1252.6	1272.7	1293.3	1314.3	1335.8

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
25	0.951	1.016	1.085	1.159	1.239	1.323	1.413	1.510	1.614	1.724	1.843	1.971	2.110	2.261	2.427	2.611	2.820	3.059	3.341	3.679
30	0.851	0.909	0.970	1.036	1.106	1.181	1.261	1.347	1.438	1.536	1.641	1.754	1.876	2.009	2.155	2.317	2.500	2.709	2.954	3.247
35	0.767	0.819	0.874	0.933	0.996	1.063	1.134	1.210	1.292	1.379	1.473	1.574	1.682	1.801	1.930	2.074	2.235	2.420	2.635	2.892
40	0.696	0.743	0.792	0.845	0.902	0.962	1.027	1.095	1.169	1.247	1.332	1.422	1.520	1.626	1.742	1.870	2.014	2.178	2.369	2.596
45	0.635	0.678	0.723	0.771	0.822	0.877	0.935	0.998	1.064	1.135	1.212	1.293	1.382	1.477	1.582	1.698	1.827	1.975	2.146	2.348
50	0.583	0.622	0.663	0.707	0.754	0.803	0.857	0.914	0.974	1.039	1.109	1.183	1.263	1.351	1.446	1.551	1.668	1.801	1.955	2.137
55	0.537	0.573	0.611	0.651	0.694	0.740	0.789	0.841	0.896	0.956	1.020	1.088	1.162	1.241	1.328	1.424	1.531	1.652	1.792	1.957
60	0.497	0.530	0.565	0.602	0.642	0.684	0.729	0.777	0.829	0.884	0.942	1.005	1.073	1.146	1.226	1.314	1.412	1.523	1.651	1.801

Typical values

Calcium nitrate solution properties at 25 °C

At 25 °C, 10 wt% calcium nitrate has a density of about 1074.9 kg/m³ and a dynamic viscosity of about 1.239 cP. At 25 °C, 30 wt% calcium nitrate has a density of about 1256.3 kg/m³ and a dynamic viscosity of about 2.427 cP. At 25 °C, 40 wt% calcium nitrate has a density of about 1362.2 kg/m³ and a dynamic viscosity of about 3.679 cP.

Limitations

Before you use these numbers

▸Laliberte (2009) aqueous-electrolyte correlation for Ca(NO3)2-water, density and viscosity. Tabulated for 2-40 wt% over 25-60 degC. The 25 degC floor is the lower bound of the correlation's Ca(NO3)2 density data (fitted 25-60 degC); the table is not extrapolated below it. Heat capacity is not tabulated (the correlation carries no Ca(NO3)2 heat-capacity coefficients). Calcium nitrate is very soluble (above 50 wt% at 25 degC), so the 40 wt% ceiling stays below saturation. Concentrations are anhydrous Ca(NO3)2 by mass; the common tetrahydrate is about 78% Ca(NO3)2 by mass. Values are for preliminary design; verify against vendor data for critical service.
▸Values are tabulated only inside the 2–40 wt% and 25–60 °C ranges shown; the correlation is not extrapolated beyond them here.
▸Figures are for a pure calcium 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.

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