Amberlyst 15?
Title: Amberlyst 15® (Rohm & Haas)
CAS Registry Number: 9037-24-5
Literature References: Macroreticular sulfonic acid cation exchange resin based on a styrene-divinylbenzene copolymer. Prepn and characterization: R. Kunin et al., Ind. Eng. Chem. Prod. Res. Dev. 1, 140 (1962). Small-angle x-ray scattering structural study: B. Chu, D. M. T. Creti, J. Phys. Chem. 71, 1943 (1967). Water sorption study: R. S. D. Toteja et al., Langmuir 13, 2980 (1997). Review of catalytic applications in synthetic organic chemistry: M. Kalesse, Acros Org. Acta 1, 67-68 (1995).
Properties: Opaque beads. Moisture holding capacity: 50% H2O. Apparent density: 1.012. True skeletal density: 1.513. Surface area: 42.5 m2/g dry resin. Avg pore diameter: 288 Å.
Density: 1.012; 1.513
Use: Ion exchange resin; reusable solid acid catalyst.

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