'Fixed alkali' definitions:

Definition of 'Fixed alkali'

From: GCIDE
  • Fixed \Fixed\ (f[i^]kst), a.
  • 1. Securely placed or fastened; settled; established; firm; imovable; unalterable. [1913 Webster]
  • 2. (Chem.) Stable; non-volatile. [1913 Webster]
  • Fixed air (Old Chem.), carbonic acid or carbon dioxide; -- so called by Dr. Black because it can be absorbed or fixed by strong bases. See Carbonic acid, under Carbonic.
  • Fixed alkali (Old Chem.), a non-volatile base, as soda, or potash, in distinction from the volatile alkali ammonia.
  • Fixed ammunition (Mil.), a projectile and powder inclosed together in a case ready for loading.
  • Fixed battery (Mil.), a battery which contains heavy guns and mortars intended to remain stationary; -- distinguished from movable battery.
  • Fixed bodies, those which can not be volatilized or separated by a common menstruum, without great difficulty, as gold, platinum, lime, etc.
  • Fixed capital. See the Note under Capital, n., 4.
  • Fixed fact, a well established fact. [Colloq.]
  • Fixed light, one which emits constant beams; -- distinguished from a flashing, revolving, or intermittent light.
  • Fixed oils (Chem.), non-volatile, oily substances, as stearine and olein, which leave a permanent greasy stain, and which can not be distilled unchanged; -- distinguished from volatile or essential oils.
  • Fixed pivot (Mil.), the fixed point about which any line of troops wheels.
  • Fixed stars (Astron.), such stars as always retain nearly the same apparent position and distance with respect to each other, thus distinguished from planets and comets. [1913 Webster]