LE CHATELIER SPECIFIC GRAVITY BOTTLE
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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Boiling flasks are used for heating and boiling of liquids. The flasks are designed to have round bodies with long, thin necks to facilitate uniform heat distribution and minimize evaporation. Boiling flasks are typically made of borosilicate glass, which is resistant to thermal shock and chemicals. Some boiling flasks have rounded or conical bottoms and need support to stand upright, while others have flat bottoms and can stand alone.
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.
A vacuum distillation glass set is a laboratory apparatus used to distill liquids at reduced pressure, allowing substances with high boiling points to vaporize at lower temperatures. This prevents thermal decomposition and is ideal for heat-sensitive compounds.
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.
Beaker is a common laboratory container used for mixing, stirring, and heating chemicals. It is usually made of glass or plastic and has a cylindrical shape with a flat bottom and a small spout for easy pouring. Beakers come in various sizes and have volume markings, but they are not used for precise measurements.
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.
Inoculating loops are simple laboratory tools used to transfer microorganisms from one medium to another, such as from a culture broth to an agar plate. Made of metal (usually nichrome or platinum) or plastic, they have a small loop at the end that holds a tiny amount of liquid or cells. They are essential in microbiology for aseptic techniques.
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.
Racks are laboratory tools used to hold, organize, and store test tubes safely and upright. They are made of plastic, wood, or metal and come in various sizes to fit different tube diameters. These racks help prevent spillage, breakage, and contamination during experiments, making them essential for safe and efficient laboratory work.
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.
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