To understand industrial naphthalene, we must first know what "naphthalene" is. Naphthalene, also known as naphthalene, is a colorless and shiny flake crystal. Insoluble in water, easy to sublimate, can volatilize with water vapor and has a special smell.

根據純度不同，萘可分為工業萘和精萘。工業萘的純度一般約為96%。工業萘進一步提純脫除雜質及脫硫后，可得到高純度的精萘。

According to different purity, naphthalene can be divided into industrial naphthalene and refined naphthalene. The purity of industrial naphthalene is generally about 96%. High purity refined naphthalene can be obtained after further purification, impurity removal and desulfurization of industrial naphthalene.

工業萘是基礎化工原料，主要用于生產減水劑、擴散劑，是生產合成樹脂、增塑劑、橡膠防老劑，表面活性劑，合成纖維，染料、醫藥和香料等的原料。

Industrial naphthalene is a basic chemical raw material, which is mainly used in the production of water reducer and dispersant. It is also a raw material for the production of synthetic resin, plasticizer, rubber antioxidant, surfactant, synthetic fiber, dyes, medicine and spices.

通過上面的一些資料我們已經了解了，工業萘就是純度較低的萘。而在文章的開頭小編還提到了一個詞：減水劑，所謂的減水劑又是什么東西呢?

We have learned from the above data that industrial naphthalene is naphthalene with low purity. At the beginning of the article, the Xiaobian also mentioned a word: water reducing agent. What is the so-called water reducing agent?

減水，顧名思義就是減少水的用量。工業萘的相關生產制造中，有哪些地方需要用到減水劑呢?答案就是建筑業的混凝土。

Water reduction, as the name suggests, is to reduce the amount of water. Where do water reducing agents need to be used in the production of industrial naphthalene? The answer is concrete in construction.

減水劑是一種在維持混凝土坍落度不變的條件下，能減少拌合用水量的混凝土外加劑。加入混凝土拌合物后對水泥顆粒有分散作用，能改善其工作性，改善混凝土拌合物的流動性;，達到減少單位水泥用量，節約水泥等目的。

Water reducing agent is a kind of concrete admixture which can reduce the mixing water volume under the condition of maintaining the constant slump of concrete. After adding the concrete mixture, it can disperse the cement particles, improve its workability and improve the fluidity of the concrete mixture;, Achieve the purpose of reducing unit cement consumption and saving cement.