The strip liquor was then added to a pre-measured dosage of 100% of the stoichiometric requirement of ammonium hydroxide for Nb, Ti, and Fe at 60°C for two hours in a “reverse precipitation” test to ...

Precipitation comes in all forms: rain, sleet, freezing rain, and snow. Some even count virga, which becomes a gas and evaporates before it reaches us as raindrops. Hail also exists but forms ...

DEHYDROGENASES are of three types: (1) those which act through coenzymes I or II, (2) flavoproteins, and (3) the 'cytochrome-reducing dehydrogenases', a group of enzymes of unknown chemical nature ...

Forecasting wintry precipitation is complicated and while some kind of precipitation is going to fall this Friday and Saturday, small changes in the setup could mean big changes in what we could ...

Abidjan port boss Hien Yacouba Sie says stringent safety rules have been met Port authorities in Ivory Coast have dismissed safety fears about a moored boat loaded with 20,000 tonnes of ammonium ...

New research shows that the sweeping land use changes and irrigation of the U.S. Corn Belt, along with the influence of the area's shallow groundwater, have significantly altered precipitation ...

In wetland soils and underwater sediments of marine, brackish and freshwater systems, the strong phytotoxin sulfide may accumulate as a result of microbial reduction of sulfate during anaerobiosis, ...