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[Chemical Knowledge]：The difference between alkali and soda ash, interpretation of alkaline substances

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In our daily life, there are some common chemicals that are alkaline. For example, soap, alkaline batteries, etc. are alkaline substances. In the field of chemistry, we often hear of alkali and soda ash, what is the difference between them? Next, this article will analyze the difference between alkali and soda ash, with you a comprehensive understanding of these two common alkaline substances.

we introduce the definition of alkali and soda ash. Alkali, refers to a class of alkaline compounds or solutions, which can neutralize acids, while having some special physical and chemical properties. And soda ash, refers to sodium hydroxide (NaOH), also known as caustic soda. Soda ash is a solid substance with strong alkalinity and is often used in industrial production and laboratories.

alkali and soda ash also have some differences in chemical properties. The acid-base indicator of alkaline substances often changes color above 7, while the acid-base indicator of soda ash will quickly change color and destroy the structure of the indicator. In addition, in terms of physicochemical properties, soda ash is soluble in water to produce sodium hydroxide solution, while alkaline substances contain a series of compounds with different solubility and ionic reactivity.

In terms of use, soda ash is mainly used in glass, textile, paper and other industrial production. Alkaline substances are widely used in daily life such as cleaning and washing. Take soap as an example, it is a kind of compound which is obtained by the reaction of fatty acid and alkaline substance and has cleaning effect. In addition, alkaline batteries are also a common product, which uses the characteristics of alkaline substances and electrolytes to provide electrical energy.

us to pay attention to the difference in safety between alkali and soda ash. Soda ash is a corrosive substance, contact with the skin and eyes will cause irritation and damage, so you need to wear personal protective equipment when using, and pay attention to avoid contact. The safety of alkaline substances is relatively high, and common ones are harmless to the human body. But also be careful not to contact for a long time, so as not to cause discomfort to the skin.

In a word, although alkali and soda ash are alkaline substances, there are some differences in nature, use and safety. Soda ash is a specific compound with strong alkalinity and plays an important role in industrial production, while alkaline substances are a series of alkaline compounds, which are widely used in daily life for cleaning and washing. When using, we should pay attention to safety and avoid causing harm to the body. I hope that through the introduction of this article, we can have a deeper understanding of alkali and soda ash.

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