Small crucible is a small and compact experimental container designed for trace sample processing, high-precision experiments or space-constrained scenarios.
- Core Features
Capacity range
Standard size: usually between 10mL and 500mL (some laboratory grade may be as low as 1mL).
Micro-quantification: Suitable for processing samples from milligram to gram levels , reducing reagent waste.
Material selection
Ceramics: Alumina, quartz, etc., which are resistant to high temperatures and have strong chemical stability.
Metal: platinum, nickel-chromium alloy, etc., suitable for ultra-high temperature or high purity experiments.
Glass: Borosilicate glass, suitable for low temperature experiments or visualization.
Design Advantages
Small opening: reduces heat loss and is suitable for precise temperature control.
Thin wall: quick response to temperature changes and shorter heating time.
Portability: small size and light weight, convenient for laboratory movement or field sampling.
- Application Scenarios
| field | Specific applications |
| Chemical analysis | Trace sample melting (such as XRF analysis) and element quantitative detection. |
| Materials Science | Nanomaterial synthesis, thin film deposition, catalyst characterization. |
| Biomedical Science | Tissue digestion, drug synthesis, DNA/RNA extraction. |
| Environmental Monitoring | Water quality analysis, soil heavy metal testing, and air pollutant sampling. |
| Educational Experiment | Student experiment demonstrations and observations of basic chemical reactions. |
- Technical advantages
Precise temperature control
The small volume design reduces thermal inertia and the temperature response speed is 30%-50% faster than that of large crucibles.
Resource Conservation
The reagent consumption in a single experiment is reduced by more than 50%, reducing the experimental cost.
High safety factor
Reduce the risk of high-temperature liquid spillage, suitable for beginners or high-risk experiments.
- Typical Cases
Nanomaterial synthesis
Using a 10mL platinum crucible, single-layer graphene can be quickly synthesized at high temperature, with a sample volume of only 10mg.
Environmental heavy metal detection
50mL quartz crucible is used for soil sample digestion, with a single processing volume of 5g, meeting the needs of ICP -MS analysis.
Drug synthesis
The 20mL glass crucible was used to synthesize anticancer drug precursors in organic solvents with small reaction volume and few by-products.
- Selection Basis
Experimental requirements
Choose ceramic or glass crucibles for trace analysis; choose metal crucibles for high temperature experiments.
When the reaction process needs to be observed, transparent materials are preferred.
Sample size
Sample volume < 100 mg: Choose a 10-50 mL crucible;
Sample size 100mg-1g: Choose a 100-500mL crucible.
Cost and lifespan
Ceramic/glass crucibles are low cost but fragile; metal crucibles are high cost but durable.
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