This comparison point is crucial. Choosing the right type can directly match the temperature control requirements of the experiment or production, avoiding insufficient or wasteful equipment functionality. The differences between the two are mainly concentrated in three dimensions: structure, temperature control method, and applicable scenarios:

1. Core structure: with or without interlayer, different functional foundations

Single layer glass reactor: There is only one layer of glass reactor body, which directly accommodates the reactants inside and has no sandwich structure on the outside. The overall structure is simple, lightweight, and the transparency of the kettle body is high, making it easy to directly observe the internal reaction state.

Double layer glass reaction kettle: The kettle body is a double-layer hollow structure (interlayer), with the inner layer containing reaction materials, and the interlayer can be filled with circulating media (such as hot water, cold water, and thermal oil). The structure is relatively complex and slightly heavy, but the interlayer is the core design for temperature control.

2. Temperature control capability: Can it actively control temperature, with significant differences in temperature control accuracy

This is the core functional difference between the two, which directly affects the applicable reaction types.

Single layer glass reaction kettle: without active temperature control capability, it can only rely on ambient temperature or external auxiliary heating (such as with a heating jacket), but the temperature control accuracy is low, unable to achieve uniform cooling, and the temperature fluctuates greatly. It can only meet simple reactions that do not require strict temperature control (such as room temperature stirring and dissolution).

Double layer glass reaction kettle: It can achieve precise temperature control by introducing circulating medium through the interlayer. It can heat (such as passing thermal oil to 150 ℃), cool (such as passing ice water or low-temperature coolant to -80 ℃), and maintain uniform temperature control with high accuracy (usually ± 1 ℃). It is suitable for scenarios that require strict control of reaction temperature (such as exothermic reactions, low-temperature crystallization, and constant temperature reactions).

3. Applicable scenarios: Matching different response needs, clear functional positioning

Single layer glass reactor: suitable for simple experiments or production without temperature requirements, such as:

Mixing, stirring, and dissolving materials at room temperature;

Atmospheric pressure reaction without temperature control;

Teaching demonstration or preliminary exploratory experiment (low-cost, easy to operate).

Double layered glass reactor: suitable for complex reactions with strict temperature requirements, such as:

Organic synthesis reactions that require precise heating/cooling (such as esterification and polymerization);

Temperature control of exothermic reactions (taking away heat through interlayer cooling liquid to prevent temperature surge);

Low temperature reactions (such as low-temperature extraction, freeze crystallization);

The production process that requires stable temperature control in industrial small-scale and pilot trials.