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Alkali

Water-soluble mineral compound, usually a moderate strength base (as opposed to caustic hydroxide), such as a bicarbonate and carbonate compound when it is present in the water.

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  • Category: Plumbing
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alkali
Industrial machinery; Industrial lubricants

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 ...

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Building materials; Tiles

A chemical substance which effectively neutralizes acid material so as to form neutral salts. A base. The opposite of acid. Examples are caustic potash and caustic soda.

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Education; SAT vocabulary

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

alkali
Culinary arts; Cooking

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 ...

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Electrical equipment; Fuel cell

In chemistry, an alkali is a basic, ionic salt of an alkali metal or alkaline earth metal element.

alkali
Consumer services; Hair salons

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.

cistern
Construction; Architecture; Building/real property; Carpentry; Demolition/excavation

water recipient like a well or a tank

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Construction; Plumbing

A thermoplastic (heat activated) used on the surfaces of bathtubs and whirlpools. It usually comes in sheets and is backed by fiberglass to form waterproof shower walls.

adaptor
Construction; Plumbing

A fitting that unites different types of pipe together, for example: ABS (Aristocraft bristone styrine) to cast iron pipe.

alkalinity
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The measurement of constituents in a water supply which determine alkaline conditions. The alkalinity of water is a measure of its capacity to neutralize acids, also referred to ...

aerator
Construction; Plumbing

A device screwed into the end of a faucet spout that mixes air into flowing water, and controls flow to reduce splashing. It sometimes contains a baffle to reduce flow to 2.5 gpm.

acidity
Construction; Plumbing

The level of concentration of acid in water. Acid will neutralize an alkali or base. It is usually expressed in terms of its calcium carbonate equivalent .

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