Salts & brines

Manganese(II) sulfate · MnSO4

Name: Manganese(II) sulfate (MnSO4) aqueous solution properties
Creator: ProcessConvert
License: https://creativecommons.org/licenses/by/4.0/

Manganese(II) sulfate (MnSO4) is a salt; this page gives computed density and dynamic viscosity for aqueous solutions from 2–30 wt% and 20–25 °C.

Values are computed from the Laliberté (2009) aqueous-electrolyte correlation and tabulated over 2–30 wt% and 20–25 °C.

Also known as: Manganese sulfate, Manganous sulfate, Manganese sulphate
CAS number: 7785-87-7
Tabulated range: 2–30 wt% · 20–25 °C
Properties: Density · Dynamic viscosity · Specific gravity

At 10 wt% · 20 °C

reference snapshot

Density: 1106.3kg/m³
Density: 1.1063g/cm³
Specific gravity: 1.108
Viscosity: 1.584cP

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 2–30 wt% and 20–25 °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 2–30 wt% and 20–25 °C range.

Concentration16 wt%

Temperature20 °C

Density: 1174.8 kg/m³
Density: 1.1748 g/cm³
Specific gravity: 1.177
Dynamic viscosity: 2.235 cP

Density (kg/m³) vs wt% MnSO4 at 20 °C — Manganese(II) sulfate.

Why it matters

What the numbers tell you

At 10 wt% and 20 °C, aqueous manganese(II) sulfate has a density of about 1106 kg/m³ (1.106 g/cm³) — roughly 1.11× the density of water. It also has a dynamic viscosity of about 1.584 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 20 °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% MnSO4	°C	Density kg/m³	SG	Viscosity cP
10	20	1106.3	1.108	1.584
20	20	1223.2	1.225	2.919
30	20	1358.0	1.360	6.838

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
▸CRC Handbook of Chemistry and Physics - Concentrative Properties of Aqueous Solutions (density at 20 degC; primary data Wolf 1966 / Sohnel & Novotny 1985)
▸CRC Handbook of Chemistry and Physics - Aqueous Solubility of Inorganic Compounds at Various Temperatures (solubility bound 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 · 10 wt% · 20 °C
Cited reference value	1101.2 kg/m3
Model computed	1106.34 kg/m3
Error vs reference	0.467% (tolerance 1%)

CRC Handbook of Chemistry and Physics - Concentrative Properties of Aqueous Solutions. CRC Handbook of Chemistry and Physics, Concentrative Properties of Aqueous Solutions (all data at 20 degC; primary data Wolf 1966 / Sohnel & Novotny 1985), manganese(II) sulfate: 10.0 mass % at 20 degC = 1.1012 g/cm3.

Full tables

Every tabulated point

Rows are temperature (°C); columns are concentration (wt% MnSO4). 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
20	1019.7	1041.2	1062.7	1084.4	1106.3	1128.7	1151.5	1174.8	1198.7	1223.2	1248.5	1274.5	1301.4	1329.2	1358.0
25	1018.3	1039.5	1060.8	1082.4	1104.2	1126.5	1149.2	1172.5	1196.4	1220.9	1246.2	1272.3	1299.3	1327.2	1356.1

Dynamic viscosity — cP (mPa·s)

°C \ wt%	2	4	6	8	10	12	14	16	18	20	22	24	26	28	30
20	1.080	1.180	1.295	1.429	1.584	1.765	1.980	2.235	2.543	2.919	3.382	3.959	4.690	5.624	6.838
25	0.958	1.045	1.146	1.263	1.398	1.556	1.742	1.963	2.228	2.551	2.948	3.442	4.063	4.855	5.877

Typical values

Manganese(II) sulfate solution properties at 25 °C

At 25 °C, 10 wt% manganese(II) sulfate has a density of about 1104.2 kg/m³ and a dynamic viscosity of about 1.398 cP. At 25 °C, 20 wt% manganese(II) sulfate has a density of about 1220.9 kg/m³ and a dynamic viscosity of about 2.551 cP. At 25 °C, 30 wt% manganese(II) sulfate has a density of about 1356.1 kg/m³ and a dynamic viscosity of about 5.877 cP.

Limitations

Before you use these numbers

▸Laliberte (2009) aqueous-electrolyte correlation for MnSO4-water, density and viscosity. Tabulated for 2-30 wt% over 20-25 degC. The narrow 20-25 degC temperature span is the full window of the correlation's MnSO4 density data; the table is held to it rather than extrapolated. Heat capacity is not tabulated (the correlation's MnSO4 heat-capacity data is a single 35 degC point). Manganese(II) sulfate is very soluble (above 35 wt% at 20 degC), so the 30 wt% ceiling stays below saturation. Concentrations are anhydrous MnSO4 by mass; the common monohydrate is about 89% MnSO4 by mass. Values are for preliminary design; verify against vendor data for critical service.
▸Values are tabulated only inside the 2–30 wt% and 20–25 °C ranges shown; the correlation is not extrapolated beyond them here.
▸Figures are for a pure manganese(II) sulfate–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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