A heterogeneous mixture in which relatively large solid particles are dispersed in a liquid or gas. Unlike colloids, suspended particles eventually settle under gravity. They can be separated by filtration. Blood, muddy water, and paint are examples of suspensions.
Properties & Characteristics
A suspension is a heterogeneous mixture in which solid particles are dispersed in a liquid but do not dissolve and will eventually settle under gravity. Suspensions have particle sizes typically greater than 1 micrometre. They can be separated by filtration. Unlike colloids, true suspensions are not stable and will separate without stirring.
Uses & Applications
Suspensions are used in pharmaceutical formulations (e.g., antacid suspensions) where the active ingredient is insoluble. Paint and many medicines are formulations containing suspensions. Clay suspensions (drilling muds) are used in oil well drilling.
Safety Information
Airborne suspensions of solid particles can be inhaled and cause respiratory harm (dust hazard). Pharmaceutical suspensions must be well-mixed before use to ensure accurate dosing.
Always consult the SDS/MSDS before handling any chemical. This information is for educational purposes only.
A heterogeneous mixture in which relatively large solid particles are dispersed in a liquid or gas. Unlike colloids, suspended particles eventually settle under gravity. They can be separated by filtration. Blood, muddy water, and paint are examples of suspensions.
Suspensions are used in pharmaceutical formulations (e.g., antacid suspensions) where the active ingredient is insoluble. Paint and many medicines are formulations containing suspensions. Clay suspensions (drilling muds) are used in oil well drilling.
Airborne suspensions of solid particles can be inhaled and cause respiratory harm (dust hazard). Pharmaceutical suspensions must be well-mixed before use to ensure accurate dosing.
Editorial standards: Chemical data is sourced from peer-reviewed literature,
CAS Registry, NIST WebBook, and PubChem. Safety information reflects guidance from OSHA, ECHA,
and IAEA. For educational purposes only — always consult official SDS documentation and qualified
professionals before handling chemicals.
