Ice-cold meaning

His voice was low and ice cold.

It may also be prepared by leading a current of dry air into phosphorus trichloride at 60° and passing the vapours into water at 0 °, the crystals thus formed being drained, washed with ice-cold water and dried in a vacuum.

It may be prepared by keeping moist and exposed to the air for from four to six weeks, at a temperature of 20° to 25° C., a paste of powdered gall-nuts and water, and removing from time to time the mould which forms on its surface; the paste is then boiled with water, the hot solution filtered, allowed to cool, the separated gallic acid drained, and purified by dissolving in boiling water, recrystallization at about 27° C., and washing of the crystals with ice-cold water.

As water expands on freezing, so conversely ice contracts on melting; and the ice-cold water thus formed continues to contract when heated until it has reached its point of maximum density, the temperature at which this occurs being about 39° Fahr.