diff --git a/include/cantera/kinetics/InterfaceKinetics.h b/include/cantera/kinetics/InterfaceKinetics.h
index b8eb86de73..2b43962eb8 100644
--- a/include/cantera/kinetics/InterfaceKinetics.h
+++ b/include/cantera/kinetics/InterfaceKinetics.h
@@ -375,6 +375,7 @@ class InterfaceKinetics : public Kinetics
      */
     int phaseStability(const size_t iphase) const;
 
+    //! @deprecated To be removed after Cantera 2.5.
     virtual void determineFwdOrdersBV(ElectrochemicalReaction& r, vector_fp& fwdFullorders);
 
 protected:
@@ -533,6 +534,7 @@ class InterfaceKinetics : public Kinetics
      *                            directly.
      *    m_ctrxn_BVform[i] = 2;  this means that the irxn reaction is calculated via the BV format
      *                            directly, using concentrations instead of activity concentrations.
+     * @deprecated To be removed after Cantera 2.5.
      */
     std::vector<size_t> m_ctrxn_BVform;
 
diff --git a/include/cantera/kinetics/Reaction.h b/include/cantera/kinetics/Reaction.h
index 2fbcdebbbf..aa5836d6ae 100644
--- a/include/cantera/kinetics/Reaction.h
+++ b/include/cantera/kinetics/Reaction.h
@@ -249,6 +249,7 @@ class ElectrochemicalReaction : public InterfaceReaction
      *  add an electrical resistance to the formulation. The resistance modifies
      *  the electrical current flow in both directions. Only valid for Butler-
      *  Volmer formulations. Units are in ohms m2. Default = 0.0 ohms m2.
+     *  @deprecated Unused. To be removed after Cantera 2.5.
      */
     doublereal film_resistivity;
 
diff --git a/include/cantera/kinetics/reaction_defs.h b/include/cantera/kinetics/reaction_defs.h
index 2d6ef59be6..2487b2cbba 100644
--- a/include/cantera/kinetics/reaction_defs.h
+++ b/include/cantera/kinetics/reaction_defs.h
@@ -79,18 +79,21 @@ const int INTERFACE_RXN = 20;
 //!  This is a surface reaction that is formulated using the Butler-Volmer
 //!  formulation and using concentrations instead of activity concentrations
 //!  for its exchange current density formula.
+//!  @deprecated To be removed after Cantera 2.5.
 const int BUTLERVOLMER_NOACTIVITYCOEFFS_RXN = 25;
 
 //!  This is a surface reaction that is formulated using the Butler-Volmer
 //!  formulation. Note the B-V equations can be derived from the forward
 //!  and reverse rate constants for a single step reaction. However, there
 //!  are some advantages to using the formulation directly.
+//!  @deprecated To be removed after Cantera 2.5.
 const int BUTLERVOLMER_RXN = 26;
 
 //!  This is a surface reaction that is formulated using the affinity
 //!  representation, common in the geochemistry community.
 //!  This is generally a global non-mass action reaction with an additional functional
 //!  form dependence on delta G of reaction.
+//!  @deprecated To be removed after Cantera 2.5.
 const int SURFACEAFFINITY_RXN = 27;
 
 /**
@@ -104,6 +107,7 @@ const int EDGE_RXN = 22;
 /**
  * A global reaction. These may have non-mass action reaction orders,
  * and are not allowed to be reversible.
+ * @deprecated To be removed after Cantera 2.5.
  */
 const int GLOBAL_RXN = 30;
 
diff --git a/src/kinetics/Reaction.cpp b/src/kinetics/Reaction.cpp
index 725ad40e58..12fb45f5f2 100644
--- a/src/kinetics/Reaction.cpp
+++ b/src/kinetics/Reaction.cpp
@@ -860,12 +860,20 @@ void setupElectrochemicalReaction(ElectrochemicalReaction& R,
     std::string type = toLowerCopy(rxn_node["type"]);
     if (type == "butlervolmer") {
         R.reaction_type = BUTLERVOLMER_RXN;
+        warn_deprecated("reaction type 'ButlerVolmer'",
+            "To be removed after Cantera 2.5.");
     } else if (type == "butlervolmer_noactivitycoeffs") {
         R.reaction_type = BUTLERVOLMER_NOACTIVITYCOEFFS_RXN;
+        warn_deprecated("reaction type 'butlervolmer_noactivitycoeffs'",
+            "To be removed after Cantera 2.5.");
     } else if (type == "surfaceaffinity") {
         R.reaction_type = SURFACEAFFINITY_RXN;
+        warn_deprecated("reaction type 'surfaceaffinity'",
+            "To be removed after Cantera 2.5.");
     } else if (type == "global") {
         R.reaction_type = GLOBAL_RXN;
+        warn_deprecated("reaction type 'global'",
+            "To be removed after Cantera 2.5.");
     }
 
     XML_Node& rc = rxn_node.child("rateCoeff");
@@ -884,6 +892,10 @@ void setupElectrochemicalReaction(ElectrochemicalReaction& R,
         R.beta = fpValueCheck(rc.child("electrochem")["beta"]);
     }
 
+    if (rxn_node.hasChild("filmResistivity")) {
+        warn_deprecated("reaction filmResistivity",
+            "Not implemented. To be removed after Cantera 2.5.");
+    }
     getOptionalFloat(rxn_node, "filmResistivity", R.film_resistivity);
     setupInterfaceReaction(R, rxn_node);
 
@@ -908,6 +920,8 @@ void setupElectrochemicalReaction(ElectrochemicalReaction& R,
 
     // For affinity reactions, fill in the global reaction formulation terms
     if (rxn_node.hasChild("reactionOrderFormulation")) {
+        warn_deprecated("reactionOrderFormulation",
+            "To be removed after Cantera 2.5.");
         Composition initial_orders = R.orders;
         R.orders.clear();
         R.allow_nonreactant_orders = true;