When using a calorimeter for accurate measurement, the cleanliness of the crucible plays a key role in the accuracy of the experimental results. If the crucible remains stained, it will not only affect the measurement data, but also damage the instrument. The following is a detailed introduction to the cleaning method of the calorimeter crucible.

preliminary preparation

Before cleaning, make sure the calorimeter is powered off and cooled to avoid the risk of electric shock and burns. Prepare cleaning tools such as a soft brush, special detergent, a clean rag, and a container of warm water.

initial cleaning

After the crucible has cooled, use a soft brush to gently remove loose residues attached to the inner and outer walls of the crucible. For stubborn large residues, carefully scrape off with the help of a plastic scraper, taking care not to scratch the surface of the crucible.

deep cleaning

Pour an appropriate amount of special detergent into a container with warm water and stir well. Soak the crucible in the solution. The soaking time depends on the degree of stain, generally 15-30 minutes. After soaking, carefully brush all parts of the crucible with a soft brush, focusing on cleaning the severely stained areas. If there are still stubborn stains, you can appropriately increase the amount of detergent or extend the soaking time.

Rinse and dry

Rinse the crucible thoroughly with flowing water to ensure that no detergent remains. Then, put the crucible in a drying oven and set a suitable temperature for drying. Generally, the temperature is controlled at 100-120 ° C. Dry until the crucible is completely dry.

Check storage

After drying, carefully check whether the surface of the crucible is smooth and free of stains and scratches. After confirming that it is correct, store the clean crucible properly and place it in a dry and clean environment for next use.

Following the above steps, the calorimeter crucible can be cleaned efficiently and safely, ensuring the stable operation and measurement accuracy of the calorimeter.