A chemical that can dissolve in water, combine with acids to form salts, and make acids less acidic. Alkalis have a bitter taste and turn certain dyes blue. Some alkalis can help the body work the way [..]

Relationships Related Term:  buffer pH Synonym:  base n. (alkaline, adj.) ~ 1. A substance that reacts with an acid to form a salt; a base. - 2. A substance with a pH between 7 and 14.

late 14c., "soda ash," from Medieval Latin alkali, from Arabic al-qaliy "the ashes, burnt ashes" (of saltwort, a plant growing in alkaline soils), from qala "to roast in a pan [..]

Describing the property of being alkaline.

chemical compound often found as mineral salt in soils and bodies of water.

Any substance having basic (as opposed to acidic) properties. In a restricted sense it is applied to the hydroxides of ammonium, lithium, potassium and sodium. Alkaline materials in lubricating oils n [..]

n. Anything that will neutralize an acid, as lime, magnesia, etc.

Chemical agent, generally soluble in water, capable of neutralizing acids. Usually caustics; pH of 7 is neutral, up to 14 indicates degree of alkalinity base.

A soluble mineral salt present in some soil and natural water.

A chemical which accepts hydrogen ions, thus neutralising acids. Have a pH greater than 7.

 – Caustic. Inorganic substances that share the characteristic of being strongly basic (high pH).

Alkalis counterbalance and neutralize ACIDS. In cooking, the most common alkali used is bicarbonate of soda, commonly known as baking soda. Adding baking soda to the water when cooking green vegetables helps maintain their bright color because it neutralizes the natural acid in the vegetables. Unfortunately, it also destroys some of the vegetable&# [..]

Baking soda is one of the more common alkali used in cooking. Alkalis neutralize acids.

(n) any of various water-soluble compounds capable of turning litmus blue and reacting with an acid to form a salt and water(n) a mixture of soluble salts found in arid soils and some bodies of water; [..]

A base; any substance having basic properties as opposed to acidic (Lesson 14)

a substance having marked basic properties (i.e. substance with properties of a base).

A compound which dissolves in water producing negatively charged hydroxide ions. Alkaline solutions are strongly basic and neutralise acids forming a salt and water.

A soluble salt, principally of sodium, potassium, magnesium, and calcium, that has the property to combine with acids to form neutral salts.

Chemical substance (such as hydroxide or carbonate of sodium or potassium) which reacts and neutralizes an acid and has a pH above 7.

a basic substance. Caustic alkalis were usually hydroxides, while mild alkalis were carbonates. (See alkaline air, fossil alkali, marine alkali, mineral alkali, vegetable alkali, volatile alkali.)

A water soluble hydroxide on one of the alkali metals. The term is virually synonymous with the term base. An example is Sodium Hydroxide, NaOH.

Various soluble salts, principally of sodium, potassium, magnesium, and calcium, that have the property of combining with acids to form neutral salts and may be used in chemical water treatment proces [..]

Usually a hydroxide of Lithium, Sodium, Potassium, Rubidium or Cesium, but also the Carbonates of these Metals, Ammonia, and the Amines. (Grant & Hackh's Chemical Dictionary, 5th ed)

An aqueous liquid which has a pH value of between 7 and 14. A base or caustic material.

Any of certain soluble salts, principally of sodium, potassium, magnesium, and calcium, that have the property of combining with acids to form neutral salts and may be used in chemical processes such [..]

This is a substance which has a pH greater than seven. It is the opposite of an acid. Highly alkaline waters tend to cause drying of the skin. A hydroxide alkali may also be called a base.

A chemical with a pH of 7 or more which reacts with acid to form a salt and water only. Turns litmus paper blue

A group of water-soluble mineral compounds, usually considered to have moderate strengths as bases, as opposed to the caustic or strongly based hydroxides. In general the term is applied to, carbonate [..]

Any substance with a pH higher than 7. Atmosphere

n. "alkali," s.v. alkali OED. KEY: alkali@n

n 1 alkaly 1

Origin: F. Alcali, ultimately fr. Ar. Alqali ashes of the plant saltwort, fr. Qalay to roast in a pan, fry. 1. Soda ash; caustic soda, caustic potash, etc. 2. <chemistry> One of a class of caustic bases, such as soda, potash, ammoma, and lithia, whose distinguishing peculiarities are solubility in alcohol and water, uniting with oils and fats [..]

Any soluble chemical substance that forms soluble soaps when mixed with fatty acids.

A liquid with a pH higher than 7. Alkalis are used in depilatory creams that dissolve hair, and galvanic electrolysis produces alkalis which can destroy a hair follicle.

any substance having basic (as opposed to acidic) properties. A more limited definition restricts the alkali to hydroxides of ammonium, lithium, potassium and sodium.

A liquid with a pH higher than 7, non acidic. Alkalis are used in depilatory creams that dissolve hair, and galvanic electrolysis produces alkalis which can destroy a hair follicle.

A general term for chemical alkaline elements and hydroxide compounds. Such alkali industries area based on Sodium (Na), Potassium (K), Calcium (Ca) and Barium

A substance having marked basic properties. Applying to hydroxides of potassium, sodium, lithium, and ammonium. They turn red litmus to blue. Includes hydroxides of the alkaline earth metals of barium [..]

(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 soa [..]