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Origin of hydrogen fluoride
Words nearby hydrogen fluoride
Example sentences from the Web for hydrogen fluoride
As an example of good science-and-society policymaking, the history of fluoride may be more of a cautionary tale.
Fluoride first entered an American water supply through a rather inelegant technocratic scheme.
Really, is it any wonder that fluoride should freak people out?
And, in the case of fluoride, at least, that doubt might actually be justified.
Placed in drinking water, fluoride can serve people who otherwise have poor access to dental care.
Hydrogen sulphid is easily prepared in the simple apparatus shown in Fig. 30.
It is allowed to cool, and hydrogen sulphid gas is passed through it for about five minutes.
Ammonia is a compound of nitrogen and hydrogen, but it cannot be formed by the direct union of these gases.Elements of Agricultural Chemistry|Thomas Anderson
Put into this vessel a small quantity of fluoride of calcium, and mix it with sulphuric acid.
One morning he found that the amount of hydrogen was scarcely perceptible; still there was water in the pit.Black Diamonds|Mr Jkai