After a busy week, Roland built a new chemical factory next to the Redwater River. Considering the toxicity of nitrogen oxide, this factory was built like the Convenience Market, with a gaping wall and wooden roof, a one-story tall gap in the middle, and awful ventilation. Of course, the temperature inside was pretty much the same with that outside.
The new oxygen and nitrogen synthesizing system was already in use. The heat produced instantaneously by the Blackfire was the same as an electric arc and was much more efficient. After the raw materials were placed into the reactor, Anna only needed 8 minutes to turn them into nitrogen dioxide, which produced nitric acid when combined with water.
