| slovo | definícia |
Fixed alkali
(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] |
| | podobné slovo | definícia |
Fixed alkalies
(gcide) | Alkali \Al"ka*li\ (?; 277), n.; pl. Alkalis or Alkalies. [F.
alcali, ultimately fr. Ar. alqal[imac] ashes of the plant
saltwort, fr. qalay to roast in a pan, fry.]
1. Soda ash; caustic soda, caustic potash, etc.
[1913 Webster]
2. (Chem.) One of a class of caustic bases, such as soda,
potash, ammonia, and lithia, whose distinguishing
peculiarities are solubility in alcohol and water, uniting
with oils and fats to form soap, neutralizing and forming
salts with acids, turning to brown several vegetable
yellows, and changing reddened litmus to blue.
[1913 Webster]
3. Soluble mineral matter, other than common salt, contained
in soils of natural waters. [Western U. S.]
[Webster 1913 Suppl.]
Fixed alkalies, potash and soda.
Vegetable alkalies. Same as Alkaloids.
Volatile alkali, ammonia, so called in distinction from the
fixed alkalies.
[1913 Webster] |
|