Suspension
| Also Known As | Particulate suspension, heterogeneous dispersion, slurry |
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What is Suspension?
A mixture in which solid particles are temporarily dispersed in a fluid but will eventually settle due to gravity. Unlike colloids, suspended particles are large enough to be seen and filtered. The Tyndall effect distinguishes colloids from true solutions but is not definitive for suspensions.
Properties & Characteristics
Uses & Applications
Safety Information
Always consult the SDS/MSDS before handling any chemical. This information is for educational purposes only.
Key Facts
Frequently Asked Questions
A mixture in which solid particles are temporarily dispersed in a fluid but will eventually settle due to gravity. Unlike colloids, suspended particles are large enough to be seen and filtered. The Tyndall effect distinguishes colloids from true solutions but is not definitive for suspensions.
Suspensions are used in pharmaceutical formulations such as antacids and oral antibiotics. Many paints, slurries in mining and water treatment, and drilling muds are practical suspensions. Agricultural pesticide sprays are applied as aqueous suspensions.
Pharmaceutical suspensions must be well shaken before use to ensure uniform dosing. Inhalation of fine suspended particles is a respiratory hazard. Some suspension ingredients may be toxic.