The "Erlenmeyer flask" is a commonly used conical glass container in the laboratory, named after its conical bottom design. Here is a detailed explanation of the Erlenmeyer flask:Core Features:Narrow conical bottom ensures strong stability and prevents tipping. The slender neck facilitates shaking without splashing, and is also suitable for inserting a thermometer or connecting devices.     Flat-bottom design: It can be directly placed on a tabletop or used on a magnetic stirrer.  2. Material and Capacity Material: Heat-resistant glass (such as borosilicate), suitable for heating; also available in plastic material (for non-high temperature scenarios).     Capacity: 50mL~5000mL (common specifications: 125mL, 250mL, 500mL).    3. Scale - Some conical flasks are marked with approximate scales (not suitable for precise measurement).Core purposes:1. Titration experiment (primary application) - The bottleneck is narrow, making it difficult for liquid to splash out during shaking, facilitating precise observation of the titration endpoint.   2. Heating/Boiling Reaction: The conical structure is evenly heated, and asbestos mesh can be placed directly underneath for heating (to avoid direct flame impinging on the bottom of the bottle).   3. For closed reactions, the bottleneck can be sealed with a rubber stopper or connected to a condenser tube (such as for distillation or reflux devices).    4. Microorganism cultivation: The conical design enhances oxygen exchange and is commonly used for shaking table culture of bacterial broth (such as bacterial fermentation).