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          亚洲国产图片,中文字幕无线码在线视频,99香蕉视频,China国产av
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                  1,4-Butene...
                  CAS No:110-64-5
                  Characteristic :Boiling point: 84 ° C; relative density: 1.07; refractive index: 1.477; flash point: 128 ° C. Soluble in water, ethanol, acetone. Almost insoluble in lower aliphatic or aromatic hydrocarbons.
                  1,4-Butene...
                  CAS No:110-64-5
                  Characteristic :Boiling point: 84 ° C; relative density: 1.07; refractive index: 1.477; flash point: 128 ° C. Soluble in water, ethanol, acetone. Almost insoluble in lower aliphatic or aromatic hydrocarbons.
                  2-Butyne-1
                  CAS No:110-65-6
                  Characteristic :Industrial butyne diol appearance of amber or brown, pure solid as colorless crystals or slightly yellow crystals. A melting point of 58 ° C, a boiling point of 238 ° C, a flash point of 152 ° C and a
                  Propargyl
                  CAS No:107-19-7
                  Characteristic :Colorless, transparent, irritating odor. A relative density of 0.9485 (20 ° C), a melting point of -58 ° C, a boiling point of 112.3 ° C, a refractive index of 1.429 to 1.431 (20 ° C) and a flash poin

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