Quick Answer: The Convection in Water Apparatus is a 360 mm x 210 mm rectangle of 22 mm diameter glass tubing that shows convection currents when one of its lower corners is gently heated.
Last updated: October 2026
Key Features
Rectangle of 22 mm diameter glass tubing, 360 mm x 210 mm
Mounted vertically in a retort stand in use
Convection currents generated by gently heating one lower corner
Potassium manganate (VII) crystals dropped into the tubule act as an indicator
Clamps not included
Technical Specifications
Specification
Value
Tube dimensions
(H) 360 mm x (W) 210 mm x (D) 22 mm
Material
Glass tubing
Mounting
Vertical, in a retort stand
About This Product
With the tube mounted vertically in a retort stand, one of the lower corners is gently heated to generate convection currents. A small amount of potassium manganate (VII) crystals dropped into the tubule acts as an indicator, so the circulation can be followed. Clamps are not included.
Frequently Asked Questions
Q1. What is used as an indicator? A small amount of potassium manganate (VII) crystals dropped into the tubule acts as an indicator.
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