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Filtration Gooch Crucible
Original price was: ₹100.00.₹40.00Current price is: ₹40.00.
Quick answer: A Gooch crucible is a perforated crucible used with a filter medium to filter a precipitate under vacuum, commonly used in gravimetric analysis where the collected solid is later dried and weighed.
The crucible sits in a rubber or similar adapter fitted to the top of a filter flask, and a layer of filter paper, glass fibre or another suitable filter medium is placed inside to retain the precipitate. When vacuum is applied to the flask, liquid is drawn quickly through the crucible’s perforated base and filter medium, leaving the solid behind for collection.
Because the crucible itself, together with the retained precipitate, can be dried and weighed directly, this method is widely used in gravimetric analysis to determine the mass of a solid product accurately, without needing to transfer the precipitate to a separate container.
Technical Specifications
| Parameter | Detail |
|---|---|
| Design | Perforated crucible for use with a filter medium under vacuum |
| Used with | Rubber adapter and filter (Buchner) flask |
| Typical use | Gravimetric analysis and precipitate collection |
Applications
- Collecting and weighing precipitates in gravimetric analysis
- Vacuum filtration of solids in quantitative chemistry practicals
- Research procedures requiring accurate mass determination of a filtered solid
- General teaching demonstrations of gravimetric technique
Care & Handling
- Fit the correct filter medium before use to ensure the precipitate is retained cleanly
- Check the rubber adapter for a secure, airtight fit on the filter flask
- Handle the crucible carefully when hot after drying, using appropriate tongs
- Clean thoroughly between uses to avoid cross-contamination of results
Why Choose LabEquip
LabEquip supplies analytical filtration equipment alongside our wider lab glassware range and chemistry lab equipment to schools, colleges and research laboratories across India. For bulk or institutional requirements, contact us and our team will help confirm the right setup for your practical work.
Frequently Asked Questions
What is a Gooch crucible used for?
It is a perforated crucible used with a filter medium to filter a precipitate under vacuum, commonly used in gravimetric analysis where the collected solid is later dried and weighed.
How is the Gooch crucible used with a filter flask?
The crucible is fitted into a rubber or similar adapter seated on top of a filter flask, and vacuum applied to the flask draws the liquid through the crucible’s perforated base and filter medium.
What filter medium is used inside the crucible?
A layer of filter paper, glass fibre or a similar filter medium is placed inside the crucible to retain the precipitate while allowing liquid to pass through the perforations.
Why is the Gooch crucible used in gravimetric analysis?
Because the crucible and its retained precipitate can be dried and weighed directly, it allows an accurate determination of the mass of solid collected from a solution.
Can the crucible be reused?
Yes, after thorough cleaning and drying, the crucible can be reused for further filtrations.
Does LabEquip supply Gooch crucibles for bulk or institutional orders?
Yes. LabEquip supplies filtration Gooch crucibles to schools, colleges and laboratories across India, including bulk and institutional orders. Contact us for a quotation.
Last Updated: September 2026
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