Engineering ToolBox - Resources, Tools and Basic Information for Engineering and Design of Technical Applications!

Slurry - Density

Calculate density of a slurry.

Sponsored Links

Slurry is a mixture of a solid and a liquid. The density of a slurry can be calculated as

ρm = 100 / [cw / ρs  + [100 - cw] / ρl]                                 (1)


ρm = density of slurry (lb/ft3, kg/m3)

c= concentration of solids by weight in the slurry (%)

ρs =  density of the solids (lb/ft3, kg/m3)

ρl =  density of liquid without solids (lb/ft3, kg/m3)

Slurry concentration by weight can be measured by evaporating a known weight of slurry - and measure the weight of dried solids.

Example - Calculating Slurry Density

The density of a slurry where

  • the density of the solids is 2500 kg/m3
  • the density of the liquid is 1000 kg/m3
  • the concentration of the solids is 30%

can be calculated as

 ρm = 100 / [(30 %) / (2500 kg/m3) + [(100 %) - (30 %)] / (1000 kg/m3)]

    = 1220 kg/m3

Slurry Density and Specific Weight Calculator

The density of a slurry can be calculated with the calculator below:

solids concentration - (%)

density solid - (kg/m3, lb/ft3)

density liquid - (kg/m3, lb/ft3)

Water Slurries - Typical Specific Gravity and Slurry Solids Concentration

ProductSGStypical Solids Concentration
% weight% volume
Coal 1.40 45 - 55 37 - 47
Copper concentrate 4.30 60 - 65 26 - 30
Gilsonite (asphalt, bitumen) 1.05 40 - 45 39 - 44
Iron ore 4.90
Iron sands 1.90
Limestone 2.70 60 - 65 36 - 41
Magnetite 4.90 60 - 65 23 - 27
Sand 2.65 43 23 - 30

Specific Gravity of Water based Slurries

Specific gravity of water based slurries vs. specific gravity of the solid and consentration of the solid in the slurry:

Specific gravity of water based slurries

Sponsored Links

Related Topics

Related Documents

Sponsored Links

Engineering ToolBox - SketchUp Extension - Online 3D modeling!

3D Engineering ToolBox Extension to SketchUp - add parametric components to your SketchUp model

Add standard and customized parametric components - like flange beams, lumbers, piping, stairs and more - to your Sketchup model with the Engineering ToolBox - SketchUp Extension - enabled for use with the amazing, fun and free SketchUp Make and SketchUp Pro .Add the Engineering ToolBox extension to your SketchUp from the SketchUp Pro Sketchup Extension Warehouse!

About the Engineering ToolBox!


We don't collect information from our users. Only emails and answers are saved in our archive. Cookies are only used in the browser to improve user experience.

Some of our calculators and applications let you save application data to your local computer. These applications will - due to browser restrictions - send data between your browser and our server. We don't save this data.

Google use cookies for serving our ads and handling visitor statistics. Please read Google Privacy & Terms for more information about how you can control adserving and the information collected.

AddThis use cookies for handling links to social media. Please read AddThis Privacy for more information.


This page can be cited as

  • Engineering ToolBox, (2008). Slurry - Density. [online] Available at: [Accessed Day Mo. Year].

Modify access date.

. .


3D Engineering ToolBox - draw and model technical applications! 2D Engineering ToolBox - create and share online diagram drawing templates! Engineering ToolBox Apps - mobile online and offline engineering applications!

Scientific Online Calculator

Scientific Calculator

3 30

Sponsored Links