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Knowledge
Simple illustration of a separatory funnel
2025-07-16
Separation funnel is a glass experimental instrument mainly used to extract liquid and control the reaction rate. Divided into ball, pear and barrel and other styles.
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The difference between a separatory funnel and a long neck funnel
2025-07-16
1. Different usesSeparation funnel: a device for solid-liquid or liquid-liquid reaction. The amount of the added liquid, the size of the reaction rate, the material separation and purification are ...
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A brief introduction to the triangular flask
2025-07-16
The Erlenmeyer flask is a titration reactor with a triangular longitudinal section made of hard glass. The mouth is small and the bottom is large, which is conducive to the sufficient reaction and ...
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Precautions for the use of Erlenmeyer flasks
2025-07-16
(1) The injected liquid should not exceed 1/2 of its volume, too much will easily cause splashing.(2) Use asbestos mesh when heating (except electric furnace heating).(3) The outside of the conical...
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Simple Instructions for Measuring Cylinders
2025-07-16
A graduated cylinder is a measuring device used in the laboratory, mainly made of glass, and a few (especially large ones) are made of transparent plastic. The purpose is to measure the liquid quan...
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The accuracy of the measuring cylinder
2025-07-16
The measuring cylinder is a coarse measuring device, its accuracy. If the minimum scale of a measuring cylinder with a volume of 5mL is 0.1mL, its accuracy is 0.1mL; if the minimum scale of a measu...
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Precautions for the use of measuring cylinders
2025-07-16
1. Cannot be used as a reaction vessel2. Can not be heatedAfter we wash things, we like to put them in the oven to dry, but the measuring cylinder is a glassware, and heating will deform it, which ...
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The structure of the filter bottle
2025-07-16
It is a thick-walled triangular bottle, and two shapes of upper mouth or upper and lower mouth are welded on the lower part of the neck (shoulder) and the lower part of the bottle bottom.
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How to use the filter bottle
2025-07-16
Before use, wash the filter bottle, cylindrical funnel, sand core crucible and other instruments, and match the rubber stopper according to the size of the filter bottle mouth, make a hole in the r...
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Introduction to separatory funnels
2025-07-16
Separation funnel is a kind of glass experimental instrument, including a bucket body and a bucket cover that covers the upper mouth of the bucket body. A piston with a three-way structure is insta...
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