Description
Product Overview
United Scientific Supplies presents a meticulously engineered porcelain evaporating dish designed for laboratory environments where precision and reliability are paramount. The flat form design maximizes the surface area available for liquid spreading, allowing rapid and uniform evaporation of solvents, reagents, and sample solutions. With a capacity of 50 milliliters, the dish strikes an optimal balance between size and handling convenience, fitting comfortably within standard laboratory equipment such as hot plates, drying ovens, and fume hoods. Constructed from high‑grade porcelain, each dish offers exceptional resistance to thermal shock, chemical corrosion, and mechanical wear, ensuring a long service life even under demanding experimental conditions. The product dimensions of approximately one inch on each side and a weight of 11.2 ounces provide a stable base that minimizes wobble during heating, while the smooth glazed interior prevents sample adhesion and facilitates easy cleaning after each use. Packaged in sets of six, the collection supplies sufficient inventory for routine workflows, batch processing, and backup needs, reducing the frequency of re‑ordering and minimizing interruptions to research schedules.
Each porcelain evaporating dish undergoes a rigorous quality assurance protocol that begins with the selection of raw materials sourced from reputable suppliers in the United States. The porcelain powder is refined to achieve a uniform particle size distribution, which contributes to the consistent translucency and structural integrity of the final product. During the molding phase, the liquid porcelain is poured into precision‑engineered molds that define the exact dimensions of the flat form, ensuring that every unit measures within tight tolerances of ±0.02 inches. After shaping, the dishes are fired in a controlled kiln environment at temperatures exceeding 1,200 degrees Celsius, a process that vitrifies the material and eliminates porosity. Post‑firing inspection includes visual examination for surface defects, dimensional verification using calibrated gauges, and a series of durability tests such as thermal cycling and impact resistance. Only dishes that meet or exceed the established criteria receive the United Scientific Supplies certification mark, guaranteeing that laboratory personnel receive a product that performs reliably across a wide range of experimental protocols, from simple solvent evaporation to complex multi‑step syntheses.
Compatibility with a broad spectrum of laboratory apparatus is a key consideration when selecting an evaporating dish, and the United Scientific Supplies model excels in this regard. The flat form geometry aligns seamlessly with standard laboratory hot plates, magnetic stirrers, and rotary evaporators, allowing users to integrate the dish into existing workflows without the need for custom adapters or modifications. The 50 mL volume is deliberately chosen to fit within the interior dimensions of most drying ovens and desiccators, enabling simultaneous processing of multiple samples while maintaining uniform temperature distribution. Moreover, the dish’s low thermal mass ensures rapid heat transfer, which shortens evaporation times and improves overall experimental efficiency. The packaging of six individual dishes is engineered for both protection and convenience: each unit is wrapped in a thin, anti‑static film that guards against scratches and static discharge during handling, and the six‑piece carton includes a clear labeling system that displays the model number, capacity, and safety warnings in compliance with international laboratory standards. This thoughtful packaging design not only simplifies inventory management for laboratory managers but also reduces the risk of cross‑contamination, as each dish remains sealed until the moment of use.
The technical specifications of the United Scientific Supplies evaporating dish are meticulously documented to aid researchers in method development and validation. The dish’s internal diameter measures exactly 25 mm, providing a uniform surface area of approximately 4.9 cm², which is critical for calculating evaporation rates based on surface-to-volume ratios. The wall thickness of 2 mm contributes to the dish’s structural rigidity while allowing rapid heat conduction from the base to the liquid sample. The porcelain composition is free of lead and cadmium, complying with USP standards for laboratory glassware, thereby ensuring that no hazardous metals leach into experimental solutions. Thermal conductivity has been measured at 1.5 W/m·K, a value that balances efficient heat transfer with the ability to maintain stable temperatures during prolonged heating cycles. The dish can withstand continuous exposure to temperatures up to 300 °C without deformation, making it suitable for high‑temperature drying applications. Additionally, the product is certified to meet the ASTM E84 fire resistance rating, providing an added layer of safety in environments where open flames or high‑heat equipment are present.
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Usage
The evaporating dish finds its most common application in chemical synthesis laboratories where the removal of solvents, excess reagents, or volatile by‑products is a routine step. Researchers typically place a measured volume of liquid into the dish and position it on a pre‑heated hot plate set to a temperature calibrated for the specific solvent’s boiling point. The flat surface promotes even spreading, which accelerates the evaporation process and reduces the likelihood of localized overheating that could degrade temperature‑sensitive compounds. In biological laboratories, the dish is employed for drying agar plates, concentrating enzyme solutions, and preparing samples for downstream analytical techniques such as mass spectrometry or chromatography. Its chemical inertness ensures that no leaching or contamination occurs, preserving the integrity of delicate biomolecules. Environmental testing facilities also benefit from the dish’s ability to handle small‑volume water samples for evaporation‑based concentration methods, facilitating the detection of trace contaminants. Across all these scenarios, the 50 mL capacity provides sufficient space to accommodate typical sample sizes while remaining compact enough to fit within standard fume hood workspaces, thereby enhancing laboratory safety and ergonomics.
Proper storage and handling of the porcelain evaporating dishes further extend their service life and maintain performance consistency. After cleaning, each dish should be dried thoroughly and stored in a clean, dust‑free cabinet with individual compartments to prevent contact between dishes, which could cause chipping or scratching of the glazed surface. It is advisable to keep the dishes away from direct sunlight and extreme humidity, as prolonged exposure to moisture can lead to gradual absorption and subtle changes in weight that may affect precise volume measurements. For laboratories that employ automated cleaning systems, the dishes are compatible with standard ultrasonic cleaners operating at frequencies between 20 and 40 kHz, provided that the cleaning solution is non‑corrosive and the temperature does not exceed 80 °C. When not in use, the sealed packaging can be retained to protect the dishes from accidental breakage during transport between laboratory benches or when moving to external facilities for field work. By following these storage and maintenance guidelines, users can achieve a functional lifespan that often exceeds five years, delivering reliable performance across countless experimental cycles.
Why Choose Us
United Scientific Supplies has built a reputation over decades for delivering laboratory glassware that meets stringent quality standards and complies with international regulations such as ISO 9001 and ASTM specifications. The company’s manufacturing facilities in the United States employ skilled technicians who oversee each stage of production, from raw material selection to final packaging, ensuring traceability and consistency across every batch. This commitment to excellence is reflected in the low defect rate observed by customers, who frequently cite the durability and performance of the porcelain evaporating dishes as a decisive factor when choosing suppliers for their research programs.
In addition to product quality, United Scientific Supplies provides responsive customer service that assists laboratories with technical inquiries, order tracking, and warranty claims. The support team is reachable via phone, email, or live chat, and they maintain a comprehensive knowledge base that includes safety data sheets, usage guidelines, and troubleshooting tips for the evaporating dishes. Should a defect be identified, the company offers a straightforward replacement policy that minimizes downtime, reinforcing the confidence of scientists who rely on uninterrupted access to reliable consumables.
Key Features
- Flat 50 mL design maximizes surface area for rapid, uniform evaporation
- High‑grade porcelain resists thermal shock and chemical corrosion for long‑term durability
- Smooth glazed interior prevents sample adhesion, simplifying cleaning and reuse
- Compact dimensions fit standard hot plates, ovens, and fume hoods, enhancing lab ergonomics
- Pack of six provides ample inventory and includes responsive customer support for quick replacements
FAQ
What temperature range can the dish safely withstand?
The porcelain construction is rated for continuous exposure up to 300 °C, making it suitable for most laboratory drying and heating applications.
Can the dish be used with aggressive solvents?
Yes, the material is chemically inert and meets USP standards, so it does not leach or react with common organic and inorganic solvents.
How should the dishes be cleaned after use?
Rinse with a compatible solvent, follow with mild detergent and warm water, avoid abrasive tools, and allow to air‑dry before storage. The dishes are also compatible with ultrasonic cleaners on a gentle cycle.
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