I.3.2. Heating sources and body heating

👀 Experiment: How can I make a spirit bottle? Correct lighting and extinguishing of the spirit

🔥 Warning! This experiment is performed only in the presence of an adult!
🔥 Warning! When working with fire sources make sure to keep your hair tight and don't wear clothes with wide sleeves!

• Heating sources must be used with care.

• Lighting the spirit bottle (filled only with sanitary alcohol) is done only with a match stick and extinguishing it is done only by covering the flame with the lid of the spirit bottle.

👀 Experiment: How can I heat a wire in a flame without burning my fingers?

🔥 Warning! This experiment is performed only in the presence of an adult!
🔥 Warning! When working with fire sources make sure to keep your hair tight and don't wear clothes with wide sleeves!

• A body is heated by holding it with metal tongs in the upper part of the flame, where the temperature is highest.

👀 Experiment: How can I heat a glass of liquid with a spirit bottle?

🔥 Warning! This experiment is performed only in the presence of an adult!
🔥 Warning! When working with fire sources make sure to keep your hair tight and don't wear clothes with wide sleeves!

• When heating liquids in glass vessels, the vessel is placed on a metal sieve with asbestos.

👀 Experiment: How can I heat a flammable substance without causing a fire?

🔥 Warning! This experiment is performed only in the presence of an adult!
🔥 Warning! When working with fire sources make sure to keep your hair tight and don't wear clothes with wide sleeves!
🔥 Warning! Alcohol, naphthalene and acetone are flammable substances and stay away from sources of fire when working with them!

• Flammable substances (naphthalene, acetone, alcohol, etc.) are only heated in a water bath.

👀 Experiment: How can I heat a liquid in a test tube without burning myself?

🔥 Warning! This experiment is performed only in the presence of an adult!
🔥 Warning! When working with fire sources make sure to keep your hair tight and don't wear clothes with wide sleeves!

• Wooden tongs are used to heat the test tube; the mouth of the test tube must not be directed at any person. In order not to break rotates the test tube in the flame!

Warning!

• Overheating of electrical wires (detected by the smell of heated rubber) also presents a risk of fire, in which case the current is immediately interrupted.

• To ensure protection against fires, it is necessary to find the following in the laboratory: water, fire extinguishers, sand, blankets, asbestos, tiles.

• The flame of any liquid (flammable, burning oil, etc.) or electrical fire, do not extinguish with water, but cover with an insulator to avoid contact with air. If a person's clothes have caught fire, he immediately wraps himself in a blanket.

• For example, when you fry potatoes and put too many potatoes or too much oil in the pan, the oil comes out of the pan and catches fire. How to proceed: first turn off the stove and cover the pan with a lid. If you don't have a lid, cover with a dry towel or blanket. It is forbidden to throw water over the hot oil as the hot oil would jump out of the pan and cause serious burns.

• The handling of flammable solvents (metallic sodium and potassium kept under oil, carbon disulphide, alcohol, ether, benzene, chloroform, acetone, etc.) is done under the niche and with the heating sources turned off.

• The heating of flammable solvents is not done with a direct flame, but only in a water or sand bath. Any fire that starts is extinguished with sand, a blanket or a fire extinguisher.