Material | Lead-free glass |
Specification | 5ml-100ml |
Product Usage:
(1) Take liquid or solid reagents.
(2) Heating a small amount of solid or liquid.
(3) Prepare a small amount of gas reactor.
(4) Collect a small amount of gas.
(5) A solute that dissolves a small amount of gas, liquid or solid.
(6) Used as a container for centrifugation.
(7) Used as a reaction vessel for a small amount of reagents, used at room temperature or when heated.
Practical tips
When using a test tube clamp to pick up a test tube, put the test tube clamp upward from the bottom of the test tube and clamp it at the middle and upper part of the test tube. If the test tube length is divided into three equal parts, the test tube clamp should be clamped within one third of the end close to the test tube mouth. To be reasonable.
Use tweezers to pick up the solid block and place it to the mouth of the test tube. Then slowly raise the test tube so that the solid slides into the bottom of the test tube. Do not let the solid fall directly to prevent the bottom of the test tube from breaking.
When loading the test tube, it should not exceed 1/2 of the test tube capacity, and when heating, it should not exceed 1/3 of the test tube capacity.
When using a dropper net to drop the liquid in the test tube, it should be suspended in the air and should not be extended into the mouth of the test tube.
Use test tube clamps for heating, and the mouth of the test tube should not be facing people. When heating a test tube containing a solid, the tube mouth is slightly downward, and when heating a liquid, tilt it at about 45°.
Do not cool quickly after heating to prevent rupture.
