def Al2O3(mw_atmos, mh=1):
    """Defines properties for Al2O3 as condensible"""
    if mh != 1:
        raise Exception(
            'Alert: No M/H Dependence in Al2O3 Routine. Consult your local theorist to determine next steps.'
            )
    gas_mw = 101.961
    gas_mmr = 2.51e-06 * (gas_mw / mw_atmos)
    rho_p = 3.987
    return gas_mw, gas_mmr, rho_p
