Special Projects: Liquid Ozone Condenser/Still

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A researcher at a national laboratory reached out to us for help with glassware designed to condense and distill liquid ozone. He had a rough sketch and some photos of the original apparatus, and provided good notes about how the assembly functioned.

The image on the right shows the resulting still head. One of the revisions to the original is the use of glass-to-metal seals for gas input, gas output, and pressure relief. These ports will utilize standard swagelok fitting as connectors.

The port at the top will shield an inserted thermocouple that will pass down to the bottom of the coil condenser to get readings where the action is at.

In addition, a wire heating coil will be wound around the outside of the condenser, and requires support in the form of glass loops and a hook to anchor the wire, shown below.

The jacketing is provided by a flanged "testtube", that is sealed to the head by a horseshoe clamp and oring, shown on the right, and disassembled below on the right. This allows the assembly to be partial submerged in liquid nitrogen.

The images below show how the heating wire is anchored to the bottom end of the condenser by way of a small glass hook, and roughly aligned with the help of two glass loops.

Heating Coil Anchor Guides (/images/uploads/2297_60df8a32ccb92.jpg)
On the right, one can see two more glass loops beneath the flange to help guide the heating wire up through the GL glass threaded ports (red caps) where the electrical feedthrough will take place.
Original Coil Detail (/images/uploads/2296_60df88ad28f1c.jpg)
Liquid Ozone Condenser/Still Liquid Ozone Condenser Disassembled (/images/uploads/2298_60df8bf16003d.jpg)
Good old fashioned chemistry!

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