Is an alcohol lamp a glass instrument Is an alcohol lamp a glass instrument

Alcohol lamps are mainly made of glass and belong to glass instruments.

The alcohol lamp consists of three parts: a light pot, a wick and a cap.

Alcohol as fuel is stored in the kettle. The wick is made of multiple strands of cotton yarn twisted together or braided, inserted in a ceramic sleeve, one end of the wick sticks into the alcohol, the other end is exposed to the air, and the alcohol undergoes capillary phenomenon and infiltrates the wick. The cap is a cover that covers the wick and is used to extinguish the flame of the alcohol lamp, preventing the alcohol from volatilizing when the lamp is not in use.

Alcohol lamp is a heating tool fueled by alcohol, which is widely used in laboratories, factories, medical treatment, scientific research, etc. Since it does not produce smoke during combustion, it can also be sterilized by burning the instrument.

Instruments made of glass are called glass instruments. Glass instruments are widely used in laboratories because glass has high chemical stability, thermal stability, good transparency, certain mechanical strength and good insulation properties. Glass instruments made of the excellent properties of glass are widely used in various laboratories, such as chemical laboratories, medical testing laboratories, biological laboratories, scientific research laboratories and teaching laboratories.

Glass is chemically stable, but it is not absolutely impervious to erosion, but it meets certain criteria for the degree of erosion. Due to the erosion of the glass, trace ions enter the solution and the ions to be measured in the adsorption solution on the glass surface are the problems to be paid attention to in microanalysis. Hydrofluoric acid corrodes glass very strongly, so experiments containing hydrofluoric acid cannot be performed with glass instruments.

Alcohol lamps are glass instruments. Alcohol lamps are mainly made of glass, which belong to glass instruments, and are composed of three parts: a light pot, a wick, and a lamp cap, and the light pot stores alcohol as fuel. Alcohol lamps are divided into hanging alcohol blowtorches and seated alcohol spray lamps, as well as conventional alcohol lamps, which are widely used in laboratories, factories, medical treatment, and scientific research fields.

Alcohol lamps are glass instruments. Alcohol lamps are mainly made of glass, which belong to glass instruments, and are composed of three parts: a light pot, a wick, and a lamp cap, and the light pot stores alcohol as fuel. Alcohol lamps are divided into hanging alcohol blowtorches and seated alcohol blowtorches, which are widely used in laboratories, factories, medical treatment, and scientific research fields.

A glass instrument that can be heated directly with an alcohol lamp: a test tube.

To heat the solid in the test tube, preheating should be carried out, and the method of preheating is: moving the test tube back and forth on the flame, moving the alcohol lamp to the fixed test tube, and then fixing the lamp flame in the solid part to heat after the test tube is evenly heated.

Heat the liquid in the tube, and preheat it as well. At the same time, it is best to note that the volume of liquid should not exceed the volume of the test tube 1 3, when heating, make the test tube oblique at a certain angle (about 45 °), move the test tube from time to time when heating, in order to avoid the liquid in the test tube boiling and spraying out to hurt people, do not put the mouth of the test tube towards yourself and someone when heating;

The test tube clamp should be clamped in the middle and upper part of the test tube, and the long handle part of the test tube clamp should be held by the hand, so as not to press the short handle with your thumb and cause the test tube to fall off. Special attention should be paid to the top of the test tube when clamping, and it should also be withdrawn from the bottom of the test tube when the celery is removed.

Alcohol lamps belong to glass instruments, and it is mostly made of glass.

Test tubes, glass rods, and glass pieces (use only when baking a small amount of solution).

The instruments that can be used for heating can be divided into two categories: direct heating and indirect (i.e., not direct) heating; Test tubes, evaporation dishes, crucibles and burning spoons can be heated directly, as well as glass rods and glass sheets (only used when baking a small amount of solution); Those that cannot be heated directly are: beakers, flasks, distillation flasks, Erlenmeyer flasks, etc.

The gas collection cylinder is generally only used to collect gas or some combustible combustion test, and the measuring cylinder can only be used to measure the volume of a certain amount of liquid, and cannot be used for direct heating.

There are only test tubes here.

Instruments that can be heated directly on an alcohol lamp are, test tubes, evaporation dishes, crucibles, of which the test tubes are glass, and the last two are generally ceramic.