What are the commonly used instruments for junior high school chemistry experiments

In the middle of the junior high school chemistry nine years, I found it.

Test tubes, balances, beakers, alcohol lamps, evaporation dishes, iron armor tables, Erlenmeyer flasks, burning spoons, tweezers, crucibles, crucibles, crucibles, burning spoons, test tube clamps, iron racks, glass rods, funnels, gas collection cylinders, flasks, catheters, measuring cylinders, rubber head droppers, ground glass tablet medicine spoons, asbestos nets, sinksDrug: hydrogen peroxide, alcohol, copper sulfate solution, potassium permanganate, potassium chlorate, sulfur, carbon, white phosphorus, red phosphorus, phenolphthalein, manganese dioxide, zinc, lime water.

Graduated cylinder beaker.

Alcohol lamp test tubes.

Funnel Erlenmeyer flask.

Separate funnels. Long-necked funnel.

Glue tip dropper. Latex tube gas collection cylinders.

Jars and jars.

Glass rod crucible pliers.

Crucible mortar and pestle.

It can be heated directly.

Test tubes, evaporation dishes, incendiary spoons.

Indirect heating: beaker, Erlenmeyer flask, plate original bottom flask right, flat bottom flask heating instrument: alcohol content.

Measuring instruments: balances, graduated cylinders.

Funnels: separating funnels, long-neck funnels.

Containers for substances: jars, bottles, drops, gas cylinders, clamping instruments: iron frames, test tube clamps, crucible pliers.

Instruments for receiving chemicals: medicine spoons, tweezers, rubber tip droppers, auxiliary instruments: glass rods, catheters.

Common instruments include test tubes, flasks, beakers, glass rods, balances, Erlenmeyer flasks, jars, evaporation dishes, crucibles, test tube clamps, iron frames, alcohol lamps, funnels, long-neck funnels, etc.

1.The solution poured into the evaporation dish shall not exceed 2 3 of the container, and it is easy to splash (overflow) when it is heated if it exceeds 2 3.

2.When heating the solution with an evaporation dish, there is no need to pad the asbestos net.

Evaporation dishes are porcelain products that can be heated directly.

3.When the solution in the evaporation dish is viscous and more solids appear, the heating is stopped.

After the evaporation of the residual heat, if the heating continues, the national body is easy to splash out of the limbs.

1.The filter paper in the filter fits snugly against the funnel wall.

Prevent the filtrate from flowing from the filter paper and the funnel wall into the beaker.

2.The nozzle at the lower end of the drain bucket is close to the inner wall of the beaker.

Prevents liquid spillage during filtration.

Test tubes, evaporation dishes, burning spoons.

Beakers, flasks, Erlenmeyer flasks.

Drop bottles, gas collection bottles, wide-mouth bottles, thin-mouth bottles.

Tray balances, graduated cylinders, thermometers.

Funnels, long-neck funnels, separating funnels.

Iron frame, crucible tongs, test tube clamps.

Graduated cylinder beaker.

Alcohol lamp test tubes.

Funnel Erlenmeyer flask.

Separate funnels. Long-necked funnel.

Glue tip dropper. Latex tube gas collection cylinders.

Jars and jars.

Glass rod crucible pliers.

Crucible mortar and pestle.