内容标题19

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                ?? ??:   ?? ?? > 1.3 ??? ? ? ? ? ?

                ?? ??

                ?? ??

                ?? ???

                 

                1,3-PS

                ??? ??????

                ???

                C5H6O3S

                ???

                122.143

                CAS

                1120-71-4

                ????

                ?? (25℃,g/cm3)

                1.392

                ??? (25℃)

                1.4585

                ??(℃)

                30-33

                ???(℃)

                180(30mm Hg)

                ?? ??(℃)

                110

                ?? ??

                     ?? (%),GC

                ≥99.90

                ??(ppm)

                ≤100

                ??(ppm, HF? ??)

                ≤50

                ?? ??

                ?? ??? ???? ??? ??? ?? ???? ??, ?? ?? ??, ??? ???? ??, ??? ?? ?? ??, ??? ???? ??.