Word: ammonias
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Barnes says the water department currently adds fluorine for dental health and a mixture of chlorine and ammonia for purity...
...Smith about an experiment one of his Syracuse University graduate students was doing. As part of Keller's graduate class in materials science, the student was trying out various chemicals to see if there was some agent that would allow drills to penetrate coal more easily. When he applied ammonia, explained Keller, the raw coal broke down into fine particles, separating the purer hydrocarbons from rock and pyritic sulfur and significantly reducing its ash content...
Those were the first heady days, when the learning curve was steep and the flexibility almost unlimited. They switched from ammonia to the refrigerant Freon as the separating agent without filing a single proposal, cost analysis or environmental-impact statement, without any of the constraints big corporations face daily. If something worked, they used it; if it didn't, they tried something else...
Britain's National Rivers Authority has been especially active. Its interest persuaded the electronics industry to come up with a briefcase-size monitor that can be used on a riverbank to measure the amount of dissolved oxygen and ammonia in the water, along with its acidity and turbidity. The authority also spurred the development of a remote-sensing water monitor, as well as an experimental technique that injects iron into stream beds to neutralize polluting phosphates. All three inventions are considered good export prospects...
...Rose has had a mastectomy. Both fall in love with Jess Clark, a local boy who arrives back in town after 13 years well informed about environmental woes. Not only the sisters but also the father and his friend Harold fall victim to the poisoned land. Blinded by anhydrous ammonia, Harold and his fate "got in everywhere, into the solidest relationships, the firmest beliefs, the strongest loyalties, the most deeply held convictions you had about the people you had known most of your life...