精萘是什么？其實它就是一種萘的提純物。根據(jù)萘純度的不同，可以把它分為工業(yè)萘和精萘。工業(yè)萘純度較低，一般約為96%。當把工業(yè)萘進一步提純，得到含萘98.45%以上，而且結晶點不低于79.3℃的萘產(chǎn)品時，我們把它叫做精萘。那么精萘是不是只可以用來制作樟腦丸呢？精萘廠家來簡單講一下：

What is refined naphthalene? In fact, it is a kind of naphthalene purification. According to the purity of naphthalene, it can be divided into industrial naphthalene and refined naphthalene. The purity of industrial naphthalene is low, generally about 96%. When industrial naphthalene is further purified to obtain naphthalene products containing more than 98.45% naphthalene and with a crystallization point not lower than 79.3 ℃, we call it refined naphthalene. So can refined naphthalene only be used to make camphor pills? The refined naphthalene manufacturer will briefly introduce:

白色易揮發(fā)晶體，有溫和芳香氣味，粗萘有煤焦油臭味；蒸汽壓0.13kPa/52.6℃閃點：80℃；熔點80.1℃沸點217.9℃；不溶于水，溶于無水乙醇、醚、苯，相對密度（水=1）1.16；相對密度（空氣=1）4.42；穩(wěn)定性：穩(wěn)定；危險標記：8（易燃固體）；主要用途：用于制造染料中間體、樟腦丸、皮革、木材保護劑等

White volatile crystal with mild aromatic smell, and crude naphthalene with coal tar odor; Vapor pressure 0.13kPa/52.6 ℃ Flash point: 80 ℃; Melting point 80.1 ℃, boiling point 217.9 ℃; It is insoluble in water, soluble in anhydrous ethanol, ether and benzene, and its relative density (water=1) is 1.16; Relative density (air=1) 4.42; Stability: stable; Hazard mark: 8 (flammable solid); Main uses: used for manufacturing dye intermediates, camphor balls, leather, wood protectants, etc

精萘是一種白色而且容易揮發(fā)的晶體，它是工業(yè)中重要的稠環(huán)芳烴，所以同樣具有芳烴的性質，有一種溫和不刺激的芳香氣味。與之相反的，從煤焦油里面分離出來的粗萘卻有一種煤焦油的臭味。精萘不溶于水，但是易溶于一些有機溶劑，比如無水乙醇、醚、苯等。精萘的穩(wěn)定性也比較穩(wěn)定，而且熔點在80.1℃，沸點在217.9℃。這些理化性質，讓它的用途相對來說比較廣泛。

Refined naphthalene is a white and volatile crystal. It is an important polycyclic aromatic hydrocarbon in industry, so it also has the properties of aromatic hydrocarbon, and has a mild and non-stimulating aromatic smell. On the contrary, crude naphthalene separated from coal tar has a smell of coal tar. Refined naphthalene is insoluble in water, but soluble in some organic solvents, such as anhydrous ethanol, ether, benzene, etc. The stability of refined naphthalene is also relatively stable, and its melting point is 80.1 ℃ and boiling point is 217.9 ℃. These physical and chemical properties make it relatively widely used.

精萘主要用于制造染料的中間體，尤其被人熟悉的是可以用來制作樟腦丸。當然，除了制作樟腦丸外，它還是皮革的重要制作原料。它還可以用作木材保護劑等。精萘也常常用于醫(yī)藥領域，比如生產(chǎn)1-萘酚、2-萘酚和甲萘胺等等。所以我們前面提到的，精萘是不是只可以制作樟腦丸，答案是否定的。

Refined naphthalene is mainly used as an intermediate in the manufacture of dyes, and is especially familiar with the production of camphor pills. Of course, in addition to making camphor pills, it is also an important raw material for leather. It can also be used as wood protectant. Refined naphthalene is also often used in the pharmaceutical field, such as the production of 1-naphthol, 2-naphthol and methylnaphthylamine. So, as we mentioned earlier, whether refined naphthalene can only be made into camphor pills, the answer is no.

當然，精萘的很多用途還有待開發(fā)。因為精萘是從石油中提取出來的，屬于低毒類的物質，我們在使用精萘的過程中，也要注意呼吸系統(tǒng)防護，佩戴過濾式防毒面具等。您有什么需求就來我們網(wǎng)站http://yaoguangyi.cn咨詢吧！

Of course, many uses of refined naphthalene still need to be developed. Because refined naphthalene is extracted from petroleum and belongs to low-toxic substances, we should also pay attention to respiratory system protection and wear filtered gas masks when using refined naphthalene. Come to our website if you have any needs http://yaoguangyi.cn Ask!