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How to use the combustion key of chemical experimental instruments
When using the combustion key in chemical experiments, first perform a safety check to ensure the spoon is clean and free of chemical residues, and that there are no flammable materials nearby. Ignite the spoon using a lighter or alcohol lamp, maintaining a safe distance. Place the spoon over the sample and move it slowly to evenly heat the sample. Observe the flame color and sample changes, and record relevant data. After use, extinguish the flame by placing the spoon on a wet cloth or using a fire extinguisher.
Edited at 2025-01-14 23:26:49
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How to use the combustion key of chemical experimental instruments
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In the introduction section, elastin is a protein that plays a crucial role in the body, endowing tissues with elasticity and toughness. Its properties include high elasticity and good ductility. Elastin has a wide range of sources and is commonly found in animal connective tissues such as skin and blood vessels. When using elastin in products, the amount and method of addition should be determined based on the characteristics of the product. It has many uses and can be added to skincare products to enhance skin elasticity and reduce wrinkles; Improving food texture and enhancing taste in the food industry; In the medical field, it can be used to make elastic scaffolds such as artificial blood vessels, providing support for tissue repair. Reasonable use can play its unique value.
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