Concentrating sulfuric acid (chiller test)
2010-03-06 15:34 by Ian
In my area, sulfuric acid can be purchased at automotive supply stores as battery electrolyte. This acid is useful as it stands, but higher concentrations are frequently required. This is the operation that was used to test the thermal load capacity of the coolant chiller.
The coolant chiller
2009-06-25 22:52 by Ian
For doing distillations and extractions using solvents with low boiling points (such as diethyl ether or chloroform), the coolant in the condenser must be below the temperature of tap water.
This is my solution to the problem of reliable sub-zero cooling.
A parabolic reflector from a directTV dish
2009-02-24 01:39 by Ian
Something geeky to pass the afternoon.