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A desiccator is a sealed container used in laboratories to keep moisture-sensitive items dry. It contains a desiccant, such as silica gel, which absorbs humidity. Desiccators are commonly used to store samples, dry chemicals, or protect equipment from moisture, ensuring accurate experimental results and preserving sample integrity.
Conical flask, also known as an Erlenmeyer flask, is a laboratory container with a conical body, flat bottom, and a narrow neck. It is used for mixing, heating, and storing liquids. The narrow neck helps reduce spillage and allows for use with stoppers. It is ideal for titrations, as it can be easily swirled without risk of spilling.
Porcelain crucible is a small, heat-resistant container made from ceramic material, used in laboratories for heating substances to very high temperatures. It is commonly used in ash content analysis, metal melting, and chemical reactions that require intense heat. Crucibles can withstand open flames and are often used with a lid and a clay triangle during heating.
Centrifuge tube is a cylindrical, conical-bottomed container used in laboratories to hold samples during centrifugation. Made of plastic or glass, it is designed to withstand high-speed spinning that separates components based on density. Centrifuge tubes come in various sizes (e.g., 1.5 mL, 15 mL, 50 mL) and often have screw caps or snap lids to prevent leakage during use.
Burette is a long, graduated glass tube with a tap at the bottom, used in laboratories to accurately deliver measured volumes of liquids, especially in titrations. It allows controlled addition of a solution to react with another in a flask. Burettes are marked with precise volume measurements, making them essential for quantitative chemical analysis.
Cuvettes are small transparent containers used in spectrophotometry to hold liquid samples for absorbance or transmittance measurements. Made of glass, plastic, or quartz, they allow light to pass through the sample. Quartz cuvettes are preferred for UV light analysis. They are essential for accurate optical readings and must be handled carefully to avoid contamination or scratches.
Pipette tips are disposable, narrow plastic attachments used with micropipettes to accurately transfer small volumes of liquid in laboratories. They ensure precision, prevent cross-contamination, and are available in various sizes (e.g., 10 µL, 200 µL, 1000 µL). Sterile pipette tips are used in sensitive experiments like molecular biology, cell culture, and PCR.
Petri dishes are shallow, circular, flat-lidded dishes typically made of glass or plastic, used in laboratories for culturing microorganisms like bacteria and fungi. Filled with a nutrient medium (e.g., agar), they provide a controlled environment for microbial growth. Petri dishes are essential tools in microbiology, cell culture, and research involving observation of microbial colonies and growth patterns.
A laboratory bladder is a flexible, inflatable membrane or container used in various experimental setups to simulate pressure, store gases or liquids, or mimic biological systems. Made from materials like latex or silicone, it is commonly used in fluid mechanics, biomedical research, or testing equipment to apply controlled pressure or volume changes.
PCR tubes are small, thin-walled plastic tubes used in Polymerase Chain Reaction (PCR) to hold DNA samples during thermal cycling. Made of polypropylene, they ensure efficient heat transfer and chemical resistance. They typically come in 0.2 mL or 0.5 mL sizes, with flat or domed caps. PCR tubes are essential for precise and contamination-free DNA amplification.
The Le Chatelier Specific Gravity Bottle is a specialized glass apparatus used to determine the specific gravity (relative density) of fine materials like cement. It has a narrow neck with a graduated scale and a bulb at the bottom. The bottle accurately measures the volume displaced by a known weight of material, helping assess quality and consistency in construction materials.
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