This calx further calcined by a moderate fire, the flame being reverberated on it, soon grows white.
He thought they were "compounded" of a certain earth, or calx, and phlogiston.
A quarter of an hour after the matter is red-hot, cover the crucible, and excite the fire vigorously till the calx melt.
Heat recovers the pure air, and the mercury, leaving the calx of the impure metal.
As soon as the calx began to glow, the bladder became expanded, and quicksilver rose into the neck.
The calx of cobalt is of a deep blue colour, which, when fused, makes the blue glass called smalt.
The Roman name is supposed to have been given on account of the abundance of calx or limestone in the district.
The residuum consists of revived mercury, with some regulus and calx of antimony.
The calx and the salts of this metal are occasionally used in medicine.
In this case no red sublimate arose as customarily takes place with that calx which is prepared by the acid of nitre.
n. pl. calx·es or cal·ces (kāl'sēz')
The crumbly residue left after a mineral or metal has been calcined or roasted.
The posterior rounded extremity of the foot; the heel.