Diethyl phthalate (DEP) 

                                                                                      1, The chemical formula and molecular weight
                                                                                      Chemical formula: C12H14O4
                                                                                      Molecular Weight: 222.24
                                                                                      CAS: 84-66-2
                                                                                      2, properties and uses
                                                                                      ① Colorless transparent oily liquid with a slightly aromatic fragrance. Viscosity of 13 cps (20 ℃), refractive index 1.499 ~ 1.502 (20 ℃).
                                                                                      ② The product with vinyl resins, cellulose resins, etc. Most have good compatibility. Often as a cellulose resin plasticizer, has good low temperature flexibility and durability. And DMP and used products can improve water resistance and elasticity.
                                                                                      ③ This product is also used as a spice diluents, lubricants, gas chromatography stationary phase and the like.
                                                                                      3, quality indicators

                                                                                      Item Index
                                                                                      Grade product Qualified  
                                                                                      Appearance Transparent, no visible quality oily liquid
                                                                                      Color (platinum - cobalt), ≤ 20 30  
                                                                                      Acid value (in terms terephthalate),% ≤ 0.1 0.2  
                                                                                      Density(20℃),g/cm³ 1.118~1.122
                                                                                      Content(GC),℅  ≥ 99.5 99.0  
                                                                                      Water content,%  ≤ 0.15 0.15  

                                                                                      4, packaging and storage safety
                                                                                      ①200L plastic bucket, net weight 230 kg / barrel, or according to customer requirements.
                                                                                      ② stored in a dry place indoors, the transport process should prevent crashing and rain.
                                                                                      ③ high fever case, the fire or contact with oxidants, cause a fire danger.

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