碱
alkali; soda ash; corrode by salt
Meanings
3 senses · 15 examplesnoun
alkali; base (chemistry)
technicalStrict chemical term for hydroxide bases, neutralizes acids to form salts and water.
Sodium hydroxide is a strongly alkaline base.
Litmus paper turns blue when exposed to alkaline solutions.
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Baking soda is weakly alkaline when dissolved in water.
Labs often use bases to neutralize excess acid.
Potassium hydroxide is a common industrial alkali.
noun
soda ash; washing soda
commonCommon household cleaning agent and dough conditioner for steamed buns and noodles.
Mom uses soda ash to clean greasy dishes.
Adding a little soda ash when making steamed buns can neutralize the sour taste of the dough.
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Old-fashioned laundry detergents often contain natural soda ash ingredients.
This soda ash can be used to remove limescale from kettles.
Folks often use alkaline water noodles to make chewy noodles.
verb
to be corroded by salt/alkali
commonUsed to describe building materials like walls, bricks, or concrete damaged by salt accumulation.
Walls of houses near the sea are easily corroded by salt and alkali.
The walls of this old house have been corroded by alkali, and crumble when touched.
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Long-term exposure to humid salty and alkaline environments will gradually corrode concrete.
These old brick walls have become soft after years of alkali corrosion.
Buildings near saline-alkali land are more prone to alkali corrosion.