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China Raw Materials for Paints and Coatings Properties CAS number: 109-99-9 HS code: 29321100 Molecular formula: C4H8O Molecular weight: 72.11 Description: THF is colorless volatile organic liquid, miscible with water, with odour similar to diethyl ether. Specifications: ITEMUNITSPECIFICATION Relative density(d 204)g/ml0.887-0.889 Reractive(茷 20 D锛?/p>/1.4065-1.4075 Nonvolatile%0.005Max. Water%0.1Max. Boiling range鈩?/p>65.0-67.0Max. Uses: THF is widely used as organic solvent and raw material of organic synthesis, chromatographic ****ysis reagent, medium of nylon66.