Page 60 - Praxair - Specialty Gases and Equipment Reference Guide
P. 60

C     4H       8
                                              Isobutylene





            Transportation                                                      (M)SDS Reference
            Information                                                         P-4614
            UN Number: 1055                                                     CAS Number
                                  United States of America  Canada  Mexico
            Shipping Name        Isobutylene    Isobutylene   Isobutylene       115 - 11 - 7
            Hazard Class         2.1            2.1           2.1               General Description
            Label                Flammable Gas   Flammable Gas   Flammable Gas   Colorless, flammable, liquefied gas
                                                                                with a coal gas odor.




              Product/Grade     Purity       Part      Cylinder    H 2 O  Other    Sulfur
                                             Number                       THC
              High Purity, 2.5   99.5 %wt    IY 2.5HP   HT, FX/FXS,    5   0.49%   1 wt
                                (liquid phase)         LP5
              Chemically Pure (CP),    99.0 %wt   IY 2.0   HT, FX/FXS,    10   0.9%    1 wt
              2.0               (liquid phase)         LP5
              Concentrations given are ppm by volume unless otherwise specified.
              Maximum ppm unless otherwise noted.




              Cylinders

              Cylinder   Style          Size                 Connection   Pressure    Volume      Gross Weight
              Type                      in (cm)              CGA/DISS     psig (bar)   lb (kg)    lb (kg)
              HT       Low Pressure Steel   55 x 29.8 (139.7 x 75.6)   510   24.3 (1.68)   530 (240.9)   845 (384.1)
              FX/FXS   Low Pressure Steel   45 x 15 (114.3 x 38.1)   510/555   24.3 (1.68)   125 (56.7)   200 (91)  Section B – Pure Gases
              LP5      Low Pressure Steel   17.7 x 12 (44.9 x 30.5)   510   24.3 (1.68)   25 (11.3)   43 (19.5)





              Equipment Recommendations
              High Purity, 2.5   3000  and 2000 series regulators
              Chemically Pure   3000  and 2000 series regulators
              (CP), 2.0


                                                                                i

                                                                                See Section D for additional
                                                                                information on Praxair products for
                                                                                the Hydrocarbon Processing Industry
                                                                                (pages D•175 - D•184).
                                                                                Contact your nearest Praxair location
                                                                                or call 1-877-PRAXAIR for technical
                                                                                information and assistance.
            3002 Series – High Purity Regulators for
            Non-Corrosive Service (see page E •251)












            1-877-PRAXAIR                     www.praxairdirect.com                                        B•59
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