diff --git a/dumux/material/fluidsystems/h2on2kinetic.hh b/dumux/material/fluidsystems/h2on2kinetic.hh
index c971bbc6edbd9163ebb3cfa6955fe1ec6c5a8693..c9a07bbdb4e3d74f57e9ec1b2240a609a57234bd 100644
--- a/dumux/material/fluidsystems/h2on2kinetic.hh
+++ b/dumux/material/fluidsystems/h2on2kinetic.hh
@@ -102,185 +102,6 @@ public:
         }// end switch phaseIdx
     }
 
-
-    /*!
-     * \brief Returns the equilibrium mole fraction of a component in the other phase.
-     *
-     *        I.e. this is a (2-phase) solution of the problem:  I know the composition of a
-     *        phase and want to know the composition of the other phase.
-     *
-     *        \param fluidState A container with the current (physical) state of the fluid
-     *        \param paramCache A container for iterative calculation of fluid composition
-     *        \param referencePhaseIdx The index of the phase for which composition is known.
-     *        \param calcCompIdx The component for which the composition in the other phase is to be
-     *               calculated.
-     */
-
-    template <class FluidState>
-    DUNE_DEPRECATED_MSG("FluidSystems should not compute equilibrium mole fractionos. Please use a constraintsolver e.g. the MiscibleMultiPhaseComposition instead")
-    static void calculateEquilibriumMoleFractionOtherPhase(FluidState & fluidState,
-                                                    const ParameterCache & paramCache,
-                                                    const unsigned int referencePhaseIdx,
-                                                    const unsigned int calcCompIdx)
-    {
-        const unsigned int nPhaseIdx   = ParentType::gasPhaseIdx;
-        const unsigned int wPhaseIdx   = ParentType::liquidPhaseIdx;
-        const unsigned int nCompIdx    = ParentType::N2Idx;
-        const unsigned int wCompIdx    = ParentType::H2OIdx;
-
-        assert(0 <= referencePhaseIdx && referencePhaseIdx < ParentType::numPhases);
-        assert(0 <= calcCompIdx && calcCompIdx < ParentType::numComponents);
-
-        const unsigned int numPhases    = ParentType::numPhases;
-        const unsigned int numComponents= ParentType::numComponents;
-        static_assert(( (numComponents==numPhases)  && (numPhases==2) ),
-                      "This function requires that the number of fluid phases is equal "
-                      "to the number of components");
-
-        const Scalar temperature = fluidState.temperature(/*phaseIdx=*/0);
-
-        // the index of the other phase
-        // for the 2-phase case, this is easy: nPhase in, wPhase set   ; wPhase in, nPhase set
-        const unsigned int otherPhaseIdx = referencePhaseIdx==wPhaseIdx ? nPhaseIdx : wPhaseIdx ;
-
-        // idea: - the mole fraction of a component in a phase is known.
-        //       - by means of functional relations, the mole fraction of the
-        //         same component in the other phase can be calculated.
-
-        // therefore in: phaseIdx, compIdx, out: mole fraction of compIdx in otherPhaseIdx
-
-        const Scalar pn     = fluidState.pressure(nPhaseIdx);
-
-        // the switch is based on what is known:
-        // the mole fraction of one component in one phase
-        switch (referencePhaseIdx)
-        {
-        case wPhaseIdx :
-            switch (calcCompIdx)
-            {
-            case wCompIdx :
-            {
-                // wPhase, wComp comes in: we hand back the concentration in the other phase: nPhase, wComp
-                const Scalar pv  = ParentType::H2O::vaporPressure(temperature) ;
-                const Scalar xww = fluidState.moleFraction(referencePhaseIdx, calcCompIdx) ; // known from reference phase
-                const Scalar xnw = pv / pn * xww ; // mole fraction in the other phase
-                Valgrind::CheckDefined(xnw);
-                fluidState.setMoleFraction(otherPhaseIdx, calcCompIdx, xnw) ;
-                return;
-            }
-
-            case nCompIdx :
-            {
-                // wPhase, nComp comes in: we hand back the concentration in the other phase: nPhase, nComp
-                const Scalar H      = BinaryCoeff::H2O_N2::henry(temperature) ; // Pa
-                const Scalar xwn    = fluidState.moleFraction(referencePhaseIdx, calcCompIdx) ; // known from reference phase
-                const Scalar xnn    = H / pn * xwn; // mole fraction in the other phase
-                Valgrind::CheckDefined(xnn);
-                fluidState.setMoleFraction(otherPhaseIdx, calcCompIdx, xnn) ;
-                return;
-            }
-
-            default: DUNE_THROW(Dune::NotImplemented, "wrong index");
-            break;
-            }
-            break;
-
-        case nPhaseIdx :
-            switch (calcCompIdx)
-            {
-            case wCompIdx :
-            {
-                // nPhase, wComp comes in: we hand back the concentration in the other phase: wPhase, wComp
-                const Scalar pv  = ParentType::H2O::vaporPressure(temperature) ;
-                const Scalar xnw = fluidState.moleFraction(referencePhaseIdx, calcCompIdx) ;// known from reference phase
-                const Scalar xww = pn / pv * xnw ; // mole fraction in the other phase
-                Valgrind::CheckDefined(xww);
-                fluidState.setMoleFraction(otherPhaseIdx, calcCompIdx, xww) ;
-                return;
-            }
-
-            case nCompIdx :
-            {
-                // nPhase, nComp comes in: we hand back the concentration in the other phase: wPhase, nComp
-                const Scalar H      = BinaryCoeff::H2O_N2::henry(temperature) ; // Pa
-                const Scalar xnn    = fluidState.moleFraction(referencePhaseIdx, calcCompIdx) ;// known from reference phase
-                const Scalar xwn    = pn / H * xnn ; // mole fraction in the other phase
-                Valgrind::CheckDefined(xwn);
-                fluidState.setMoleFraction(otherPhaseIdx, calcCompIdx, xwn) ;
-                return ;
-            }
-
-            default:
-                DUNE_THROW(Dune::NotImplemented, "wrong index");
-            }
-
-            DUNE_THROW(Dune::NotImplemented, "wrong index");
-        }
-    }
-
-    /*!
-     * \brief Calculates the equilibrium composition for a given temperature and pressure.
-     *
-     *        In general a system of equations needs to be solved for this. In the case of
-     *        a 2 component system, this can done by hand.
-     *
-     *        If this system was to be described with more components, and /or if a matrix is
-     *        to be assembled like e.g. MiscibleMultiPhaseComposition ConstraintSolver,
-     *        a function describing the chemical potentials of the components in the respective
-     *        phases was needed.
-     *
-     *        In the case of Henry, Raoult this would be
-     *
-     *        ----- n-Comp w-Comp
-     *
-     *        nPhase pn \f$\mathrm{x_n^n}\f$ pn \f$\mathrm{x_n^w}\f$
-     *
-     *        wPhase pv \f$\mathrm{w_w^w}\f$ H \f$\mathrm{x_w^n}\f$
-     *
-     *
-     *        Plus additional relations for additional components.
-     *
-     *        Basically the same structure of the matrix can be used, but the thing that is the
-     *        same in both phases is the chemical potential, not the fugacity coefficient.
-     *
-     *        \param fluidState A container with the current (physical) state of the fluid
-     *        \param paramCache A container for iterative calculation of fluid composition
-     */
-    template <class FluidState>
-    DUNE_DEPRECATED_MSG("FluidSystems should not compute equilibrium mole fractionos. Please use a constraintsolver e.g. the MiscibleMultiPhaseComposition instead")
-    static void calculateEquilibriumMoleFractions(FluidState & fluidState,
-                                                  const ParameterCache & paramCache)
-    {
-        const unsigned int nPhaseIdx    = ParentType::gasPhaseIdx;
-        const unsigned int wPhaseIdx    = ParentType::liquidPhaseIdx;
-        const unsigned int nCompIdx     = ParentType::N2Idx;
-        const unsigned int wCompIdx     = ParentType::H2OIdx;
-        const unsigned int numPhases    = ParentType::numPhases;
-        const unsigned int numComponents= ParentType::numComponents;
-
-        static_assert(((numComponents == numPhases) && (numPhases== 2)),
-                      "This function requires that the number fluid phases is equal "
-                      "to the number of components");
-
-        const Scalar temperature        = fluidState.temperature(/*phaseIdx=*/0);
-        const Scalar pn                 = fluidState.pressure(nPhaseIdx);
-        const Scalar satVapPressure     = ParentType::H2O::vaporPressure(temperature);
-        const Scalar henry              = BinaryCoeff::H2O_N2::henry(temperature);
-
-        Scalar x[numPhases][numComponents] ;
-        x[nPhaseIdx][wCompIdx]  = ( satVapPressure*(henry - pn) )  / ( pn*(henry-satVapPressure) ) ;
-        x[nPhaseIdx][nCompIdx]  = 1. - x[nPhaseIdx][wCompIdx];
-        x[wPhaseIdx][nCompIdx]  = x[nPhaseIdx][nCompIdx] * pn / henry;
-        x[wPhaseIdx][wCompIdx]  = x[nPhaseIdx][wCompIdx] * pn / satVapPressure;
-
-        for (unsigned int phaseIdx = 0; phaseIdx < numPhases; phaseIdx++)
-            for (unsigned int compIdx = 0; compIdx < numComponents; compIdx++)
-            {
-                Valgrind::CheckDefined(x[phaseIdx][compIdx]);
-                fluidState.setMoleFraction(phaseIdx, compIdx, x[phaseIdx][compIdx]) ;
-            }
-    }
-
     /*!
      * \brief Return the Henry constant for a component in a phase. \f$\mathrm{[Pa]}\f$
      * \param temperature The given temperature