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Double-layer glass reactor VS ordinary single-layer reactor / glass flask

Jan. 30. 2026

Feature

Jacketed glass reactor

Single layer glass reactor / glass flask

Temperature control

Excellent, (jacket circulation, -120 to 300, precise and uniform)

Inadequate (primarily relying on external water / oil baths and ice baths, resulting in low efficiency and unevenness)

Airtightness

Excellent, (standard ground joint, fully sealed)

Poor (usually open or simply covered)

Inert gas protection

Easy to implement, (vacuumizing /gas replacement)

Difficulty

Applicable pressure range

It can adapt to a certain degree of negative pressure / micro-positive pressure (safety valve required)

Only normal pressure or very low negative pressure

Volatile / hazardous substance control

Excellent, (fully enclosed system)

Poor

Temperature retention capability

Excellent, (jacket temperature control)

Very poor

Operational Security

Higher (closed, visible, pressure controllable)

Lower

Complex reaction support

High (modularity, supports multiple accessories)

Low

Visibility

Excellent (fully transparent)

Excellent (but with limited functionality)

Cost

Higher

Lower

Double-layer glass reactor VS ordinary single-layer reactor / flask