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其实它就是一种萘的提纯物。根据萘纯度的不同，可以把它分为工业萘和爱游戏app全站登录。工业萘纯度较低，一般约为96%。

In fact, it is a purified substance of naphthalene. According to the different purities of naphthalene, it can be divided into industrial naphthalene and refined naphthalene. The purity of industrial naphthalene is relatively low, generally around 96%.

爱游戏app全站登录是一种白色而且容易挥发的晶体，它是工业中重要的稠环芳烃，所以同样具有芳烃的性质，有一种温和不刺激的芳香气味。与之相反的，从煤焦油里面分离出来的粗萘却有一种煤焦油的臭味。爱游戏app全站登录不溶于水，但是易溶于一些有机溶剂，比如无水乙醇、醚、苯等。爱游戏app全站登录的稳定性也比较稳定，而且熔点在80.1℃，沸点在217.9℃。这些理化性质，让它的用途相对来说比较广泛。

Refined naphthalene is a white and easily volatile crystal, which is an important polycyclic aromatic hydrocarbon in industry. Therefore, it also has aromatic properties and a mild and non irritating aromatic odor. On the contrary, crude naphthalene separated from coal tar has a foul smell of coal tar. Refined naphthalene is insoluble in water, but is easily soluble in some organic solvents, such as anhydrous ethanol, ether, benzene, etc. The stability of refined naphthalene is also relatively stable, with a melting point of 80.1 ℃ and a boiling point of 217.9 ℃. These physical and chemical properties make it relatively versatile in use.

爱游戏app全站登录主要用于制造染料的中间体，尤其被人熟悉的是可以用来制作樟脑丸。当然，除了制作樟脑丸外，它还是皮革的重要制作原料。它还可以用作木材保护剂等。爱游戏app全站登录也常常用于医药领域，比如生产1-萘酚、2-萘酚和甲萘胺等等。所以我们前面提到的，爱游戏app全站登录是不是只可以制作樟脑丸，答案是否定的。

Refined naphthalene is mainly used as an intermediate in the production of dyes, especially in the production of camphor balls. Of course, in addition to making camphor balls, it is also an important raw material for leather production. It can also be used as a wood protectant, etc. Refined naphthalene is also commonly used in the pharmaceutical field, such as in the production of 1-naphthol, 2-naphthol, and methylnaphthylamine, among others. So as we mentioned earlier, can refined naphthalene only be used to make camphor balls? The answer is no.

爱游戏app全站登录的很多用途还有待开发。因为爱游戏app全站登录是从石油中提取出来的，属于低毒类的物质，我们在使用爱游戏app全站登录的过程中，也要注意呼吸系统防护，佩戴过滤式防毒面具等。

Many uses of refined naphthalene still need to be developed. Because refined naphthalene is extracted from petroleum and belongs to the low toxicity category, we should also pay attention to respiratory protection and wear filter type gas masks when using refined naphthalene.

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