Enter the concentration of solids by weight (%), the density of the solids (kg/m^3), and the density of the liquid without solids (kg/m^3) into the Slurry Density Calculator. The calculator will evaluate and display the Slurry Density. 

Slurry Density Formula

The following formula is used to calculate the Slurry Density. 

SD = 100 / (C / ds + (100-C) / dl ) 
  • Where SD is the Slurry Density (kg/m^3)
  • C is the concentration of solids by weight (%) 
  • ds is the density of the solids (kg/m^3) 
  • dl is the density of the liquid without solids (kg/m^3) 

How to Calculate Slurry Density?

The following example problems outline how to calculate Slurry Density.

Example Problem #1

  1. First, determine the concentration of solids by weight (%).
    1. The concentration of solids by weight (%) is given as 50.
  2. Next, determine the density of the solids (kg/m^3).
    1. The density of the solids (kg/m^3) is calculated as: 40.
  3. Next, determine the density of the liquid without solids (kg/m^3).
    1. The density of the liquid without solids (kg/m^3) is found to be: 30.
  4. Finally, calculate the Slurry Density using the formula above: 

SD = 100 / (C / ds + (100-C) / dl ) 

Inserting the values from above yields: 

SD = 100/ (50 / 40 + (100-50) / 30 )  = 34.285 (kg/m^3)

FAQ

What is slurry density and why is it important?

Slurry density refers to the mass of a slurry (a mixture of solids and liquids, typically water) per unit volume, usually expressed in kilograms per cubic meter (kg/m^3). It is a crucial parameter in various industrial processes, such as mining and wastewater treatment, because it affects the flow properties and the efficiency of separation and transport processes.

How does the concentration of solids affect slurry density?

The concentration of solids by weight (%) directly influences the slurry density. A higher concentration of solids increases the slurry density because there is more mass of solids per unit volume of slurry. Conversely, a lower concentration of solids results in a lower slurry density, as there is less mass of solids per unit volume.

Can the slurry density formula be used for any type of liquid and solid mixture?

While the slurry density formula provided is generally applicable to many types of liquid and solid mixtures, its accuracy may vary depending on the specific properties of the solids and liquids involved. For mixtures with highly irregular solid shapes, varying sizes, or in cases where chemical interactions between the solids and liquids significantly alter the mixture’s properties, additional factors may need to be considered.