Girdler sulfide process

Heavy water is used in particle research, in deuterium NMR spectroscopy, deuterated solvents for proton NMR spectroscopy, heavy water nuclear reactors (as a coolant and moderator) and deuterated drugs.

In 1943, Karl-Hermann Geib and Jerome S. Spevack independently invented the process.

[2]The process is named after the Gildler Company, which constructed the first American plant to implement it.

[4] The first such facility of India's Heavy Water Board to use the Girdler process is at Rawatbhata near Kota, Rajasthan.

[5] Romania, India and the former supplier of much of the world's heavy water demand, Canada, all have operating heavy water reactors with two at Cernavoda Nuclear Power Plant in Romania making up the country's entire fleet and several each in India (mostly IPHWR) and Canada (exclusively CANDU).

The chemical equilibrium tries to force more deuterium into the water to correct the ratio.