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Mercury thermometer
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Product Description
The Mercury Thermometer is a precise laboratory instrument designed for accurate temperature measurement using mercury as the thermometric fluid. It consists of a narrow, sealed glass tube containing mercury that expands and contracts with temperature changes, moving along a calibrated scale etched or printed on the glass. Mercury thermometers offer excellent thermal conductivity and stability, enabling precise readings over a wide temperature range typically from -39°C to 357°C (the freezing and boiling points of mercury). The clear glass casing allows easy observation of mercury levels, while the robust design resists breakage under normal laboratory conditions. Mercury thermometers are widely used in scientific research, medical labs, industrial processes, and educational settings for their reliability and accuracy. Despite their benefits, mercury thermometers require careful handling due to the toxicity of mercury, and many labs are transitioning to safer alternatives in compliance with environmental regulations.
Description
Primary Uses
Laboratory and Medical Applications
- Measuring temperature in chemical reactions and biological experiments.
- Monitoring temperature in incubators and environmental chambers.
- Used in clinical laboratories for precise body temperature measurement.
- Temperature control during sterilization and autoclaving processes.
Secondary Uses
Industrial and Research Applications
- Temperature monitoring in manufacturing and quality control.
Calibration reference for other temperature measurement devices.
KEY PRODUCT FEATURES
Basic Identification Attributes
- Material: Glass tube filled with high-purity mercury.
- Scale: Calibrated temperature scale in °C or °F etched on glass.
- Range: Typically -39°C to 357°C.
Physical & Chemical Properties
- Thermal Conductivity: High, allowing fast response to temperature changes.
- Chemical Stability: Mercury is chemically stable inside sealed glass tube.
- Visibility: Clear glass for easy mercury column observation.
Safety & Hazard Attributes
- Contains toxic mercury; handle with extreme care to avoid spills.
- Fragile glass prone to breakage, posing health and environmental risks.
Storage & Handling Attributes
- Store in a secure, stable location away from direct sunlight and impact.
- Use protective casing or holders to minimize breakage risk.
- Dispose of broken or obsolete thermometers as hazardous waste.
Regulatory & Compliance Attributes
- Compliance with local and international regulations governing mercury use and disposal.
- Many regions restrict or ban mercury thermometers in favor of safer alternatives.
Environmental & Health Impact
- Mercury is toxic and poses significant environmental hazards if released.
Proper disposal and recycling required to prevent contamination.
SAFETY HANDLING PRECAUTIONS
Safety Handling Precautions
- Use gloves and eye protection when handling.
- Avoid dropping or striking the thermometer.
- In case of breakage, follow mercury spill cleanup protocols.
First Aid Measures
- For mercury exposure, seek immediate medical attention.
- Clean cuts from broken glass carefully; monitor for mercury exposure symptoms.
Firefighting Measures
- Non-flammable material.
Use appropriate extinguishing media for surrounding fire.
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