FOR the analysis of the nitrate content of sea water, and for certain tests on alkaloids, it is necessary to have sulphuric acid free from all but the most minute amounts of nitric acid.

The trucks were carrying about 25,000 liters of pesticides and 76 tons of sulfuric acid, according to the National Agency for Water and Basic Sanitation, raising concerns about environmental damage.

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The disaster killed two people, left up to ten others missing, and sparked fears of contamination from the sulfuric acid now leaking into the water. The tragedy unfolded on the Juscelino ...

A tanker truck carrying the acid plunged into the water, officials said ... after identifying that one submerged tanker was leaking sulfuric acid, said the fire department from Tocantins.

Researchers at Oxford University have developed a new method to extract fluorine from fluorspar (CaF2) using oxalic acid and a fluorophilic Lewis acid in water ... enough sulfuric acid to satisfy ...

ESTREITO, Brazil, Dec 24 (Reuters) - Brazilian state and federal authorities were assessing on Tuesday the risks of water contamination after trucks carrying sulfuric acid and agricultural ...

A tanker truck carrying the acid plunged into the water, officials said ... after identifying that one submerged tanker was leaking sulfuric acid, said the fire department from Tocantins.