Cations can be identified with flame tests or precipitate tests using sodium hydroxide and ammonia solutions. Anions (halide, sulfate, and carbonate ions) can be identified using precipitate tests or ...

WORK is being done in this laboratory on various atmospheric corrosion problems. An apparatus has been set up which measures corrosion-rates by following the oxygen consumption. This apparatus will be ...

This is a 12-year follow-up study on screening with a mixture of 2 % hydrochloric acid and 18% alcohol for upper digestive tract cancer in a Chinese high-risk population. A public screening for upper ...