Do benzene and pure benzene have the same UN number?
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When applying for a license to handle hazardous chemicals, do I need to declare only one of the two items? How many are there in total?
There are many types of benzene, including toluene, cumene, ethylbenzene, and so on. If it’s just benzene, I personally don’t think there is a difference between pure benzene and benzene.
Benzene, of course, and pure benzene both refer to pure benzene. Since it is the same substance, the hazard classification number must be the same.
According to GB 13690-92 on the classification and labeling of commonly used hazardous chemicals, pure benzene is merely another name for benzene; therefore, its hazard classification code is the same. According to the 2007, revised edition of the United Nations Recommendations on the Transport of Dangerous Goods, the UN number for benzene is 1114. Additionally, when applying for a business license, the product name should be filled in as benzene; pure benzene should only be specified if an alternative name is required. This post was last edited by lyhh9024 on 2009-4-2 19:59.]
It is the same substance; pure benzene is just a common name for it. So, the hazard code is one, 1114.
32050 Benzene, pure benzene 1114 32050 Solvent benzene 32051 Crude benzene, motor benzene; mixed benzene 32051 Heavy benzene
Toluene, ethylbenzene, and propylbenzene are derivatives of benzene; they have different molecular formulas from benzene, so they can’t be considered types of benzene, right?