What are the common laboratory quartz instruments?

Due to the stability of its chemical properties, quartz is widely used in various fields, especially in the field of chemistry. In fact, many experimental equipment in our chemical formulas are made of quartz. Let professional quartz sheet manufacturers come here Let me introduce to you that the items in the laboratory are made of our quartz.

1. Test tube

(1) It can be heated directly. When heating, the outer wall should be wiped dry, clamped with test tube clamps or fixed on the iron stand with iron clamps;

(2) When heating the solid, the mouth of the nozzle is slightly inclined downward, and the solid is flat on the bottom of the tube;

(3) When heating the liquid, the mouth of the nozzle is inclined upwards, at 45° to the desktop, and the amount of liquid does not exceed 1/3 of the volume, and the mouth of the nozzle should not be directed toward people.

2. Volumetric bottle

Quartz instrument volumetric flasks are used to accurately configure solutions with a certain concentration of substances, check whether there is water leakage, use them at the marked temperature, add liquid with glass rods for drainage, the concave liquid surface is tangent to the scale line, and the solution cannot be stored for a long time.

3. Crucible

The quartz crucible is used to ignite solids to make them react. It can be heated to a high temperature by direct fire, placed on a mud triangle, and held by crucible tongs. It cannot be quenched.

4. Separating funnel

It is used to separate liquids with different densities that are immiscible, and the reactor can also be assembled to add liquid at any time.

Check for liquid leakage before use. Open the upper cover or align the groove on the plug with the upper hole when draining the liquid, and the upper liquid will be poured out from the upper opening.