An accurate control of the required hydrochloric acid and caustic soda concentrations through the whole chlor-alkali process is important and can easily be accomplished with Anton Paar's density sensor L-Dens 7400 and sound velocity sensor L-Sonic 5100.
Anton Paar Ltd
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Nanogenerator consumes CO2 to generate electricity
Whoopee, they've solved how to keep a light on but not a lot else.