Alkali vs Hepar - What's the difference?
alkali | hepar |
(chemistry) 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.
Soda ash; caustic soda, caustic potash, etc.
(Western United States) Soluble mineral matter, other than common salt, contained in soils of natural waters.
(obsolete, chemistry) liver of sulphur; a substance of a liver-brown colour, sometimes used in medicine, formed by fusing sulphur with carbonates of the alkalis (especially potassium).
(obsolete, chemistry) Any substance resembling hepar in appearance; specifically, in homeopathy, calcium sulphide.
(Webster 1913)
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