The temperature at which a liquid boils. Specific: the temperature at which the vapor pressure of a liquid is equal to the external pressure, the boiling point thus decreasing with a decrease in pressure (as 100 °C for water at a pressure of 760 mm of mercury and 51 °C at 100 mm)
A solution with a pH of seven, i.e.: it is neither acid nor base. A neutral solution contains both hydrogen and hydroxide ions at the same concentration.
1. Extraneous matter or impurities which rise to, or are formed on the surface of liquids. 2. Any foul filmy covering floating on a liquid such as on a stagnant pool.
Sheet iron or steel coated with an alloy of about four parts of lead and one part of tin.
A device for boring small holes by hand pressure. The bit form of gimlet is used in a brace, being adapted to heavier and quicker boring than the gimlet which has a handle.
A commercial form of iron that is rough, malleable, and relatively soft and contains less than 0.3% of slag mechanically mixed with it.
The natural movement of heat through a body of fluid that occurs when a warm fluid rises and cool fluid sinks under the influence of gravity.