Gooch Crucible
Product Code : SCL-CLE-11911
The JLab India Gooch Crucible is a specialized laboratory vessel engineered for the high-precision collection and weighing of precipitates in analytical chemistry. Featuring a perforated base designed to support a filter medium (such as an asbestos or glass-fiber mat), it allows for rapid vacuum-assisted filtration followed by direct heating in a furnace or oven. It is an essential instrument for University-level Quantitative Analysis and Environmental Testing.
Technical Specifications
| Tender Specification | OEM Technical Detail |
| Material | High-purity Glazed Porcelain or Borosilicate Glass 3.3 |
| Design | Flat, perforated bottom for uniform filtration |
| Capacities | 15ml,30ml,50ml (Standard sizes) |
| Temperature Resistance | Up to 1100?C (Porcelain) or 500?C (Glass) |
| Surface Finish | Smooth glazed internal and external surfaces (except the base) |
| Compatibility | Fits standard Gooch adapters and filter flasks |
| Chemical Resistance | Excellent resistance to acids and alkalis (except HF) |
Certification | ISO certificates available on request |
Key Pedagogical & Laboratory Outcomes
- Filtration Interface: Facilitates the study of Gravimetric Analysis. Unlike filter paper, the Gooch crucible does not burn away; learners identify how to collect a precipitate and heat it to a constant mass without loss of material.
- Vacuum Quantification: Enables high-speed separation of solids from liquids; learners apply vacuum pressure via a Buchner flask to record filtration rates for fine precipitates like Barium Sulfate.
- Thermal Analysis: Supports the analysis of "Loss on Ignition"; students evaluate the change in chemical composition of a sample when heated to high temperatures in a muffle furnace.
- Contamination Evaluation: Allows students to evaluate the importance of pre-treating the filter mat; by using glass fiber or mineral mats, students minimize the "blank error" in sensitive mass measurements.
International Logistics & Compliance
JLab India ensures comprehensive OEM readiness for global institutional procurement:
- Packaging: Export-grade, high-impact packaging. Every crucible is nested in custom-cut inserts to prevent chipping of the edges or structural fracture during maritime transit.
- Documentation: Includes Manufacturer’s Authorization Form (MAF), Certificate of Conformance (CoC), and instructions for preparing the filter bed.
- Durability: The porcelain is manufactured from high-quality alumina-silicate, ensuring it can withstand repeated "heating-to-constant-weight" cycles without cracking.
Direct OEM Sourcing Advantages
Procuring the JLab India Gooch Crucible directly ensures vertical manufacturing control:
- Precision Perforations: Direct oversight of the base drilling ensures that the holes are uniform in size and distribution, preventing "channeling" and ensuring an even distribution of the precipitate.
- Glaze Integrity: We ensure the glaze is acid-resistant and smooth, making it easy to quantitative recover every milligram of the sample after drying.
- Direct Factory Inventory: Guaranteed availability of matching Gooch adapters (rubber sleeves) to ensure an airtight fit with your existing laboratory filter flasks.
- Quality Assurance: Every batch is tested for thermal shock resistance to ensure they do not shatter when transferred from a desiccator to a hot oven.