Commonly used chemistry laboratory instruments are test tubes, tray balance, beakers, alcohol lamps, evaporating dishes, iron stand, conical flasks, burning spoons, tweezers, crucibles, crucible tongs, combustion spoons, test tube holders, iron stand, glass rods, funnels, gas collection flasks, flasks, catheters, measuring cylinders, rubber-tipped burette, hairy glass tablets, medicine spoons, asbestos nets, water tanks, thermometers and so on.
Introduction to common chemistry laboratory instruments
1, beaker:
Beaker is a common laboratory glassware, made of glass, plastic, or heat-resistant glass. Beakers are cylindrical in shape, with a slot on the top side for easy pouring of liquids. Beakers are widely used for heating, dissolving, mixing, boiling, melting, evaporating and concentrating, diluting, and precipitating and clarifying chemical reagents.
2, measuring cylinders:
Measuring cylinders are instruments to measure the volume of liquid. Specifications to the maximum capacity of the energy degree (mL), commonly used 10mL, 25mL, 50mL, 100mL, 250mL, 500mL, 1000mL and so on. Outer wall scale are in mL units, 10mL cylinder each small cell said 0.2mL, and 50mL cylinder each small cell said 1mL.
3, test tube:
Test tubes, commonly used instruments in chemical laboratories, used as a reaction container for a small amount of reagents, at room temperature or when heated (heating should be warmed up before, or test tube easily burst.) Use. Test tubes are divided into ordinary test tubes, branched test tubes, centrifugal test tubes and so on. Ordinary test tube specifications outside the diameter (mm) × length (mm), such as 15 × 150, 18 × 180, 20 × 200 and so on.
4, alcohol lamps:
Alcohol lamps are alcohol-fueled heating tools, widely used in laboratories, factories, medical, scientific research. Because of its combustion process does not produce smoke, so it can also be burned through the instrument to achieve the purpose of sterilization. The heat generated during the combustion process of the alcohol lamp can also be used to heat other experimental materials. Its heating temperature reaches more than 400-1000 ℃.
5. Buret:
A buret is a measuring vessel that holds the titrant solution in a titration operation. The buret is a long, thin, uniformly sized and graduated glass tube with a glass tip at the lower end of the tube, available in different volumes such as 25 ml and 50 ml.