diff --git a/Cantera/python/ctml_writer.py b/Cantera/python/ctml_writer.py
index af6c2fa1f..413366a36 100644
--- a/Cantera/python/ctml_writer.py
+++ b/Cantera/python/ctml_writer.py
@@ -1654,139 +1654,139 @@ class edge(phase):
         return (1, -1)    
 
 
-class binary_salt_parameters:
-    def __init__(self,
-                 cation = "",
-                 anion = "",
-                 beta0 = None,
-                 beta1 = None,
-                 beta2 = None,
-                 Cphi = None,
-                 Alpha1 = -1.0):
-        self._cation = cation
-        self._anion = anion
-        self._beta0 = beta0
-        self._beta1 = beta1
-        self._Cphi = Cphi
-        self._Alpha1 = Alpha1
+## class binary_salt_parameters:
+##     def __init__(self,
+##                  cation = "",
+##                  anion = "",
+##                  beta0 = None,
+##                  beta1 = None,
+##                  beta2 = None,
+##                  Cphi = None,
+##                  Alpha1 = -1.0):
+##         self._cation = cation
+##         self._anion = anion
+##         self._beta0 = beta0
+##         self._beta1 = beta1
+##         self._Cphi = Cphi
+##         self._Alpha1 = Alpha1
         
-    def build(self, a):
-        s = a.addChild("binarySaltParameters")
-        s["cation"] = self._cation
-        s["anion"] = self._anion
-        s.addChild("beta0", self._beta0)
-        s.addChild("beta1", self._beta1)
-        s.addChild("beta2", self._beta2)
-        s.addChild("Cphi", self._Cphi)
-        s.addChild("Alpha1", self._Alpha1)
+##     def build(self, a):
+##         s = a.addChild("binarySaltParameters")
+##         s["cation"] = self._cation
+##         s["anion"] = self._anion
+##         s.addChild("beta0", self._beta0)
+##         s.addChild("beta1", self._beta1)
+##         s.addChild("beta2", self._beta2)
+##         s.addChild("Cphi", self._Cphi)
+##         s.addChild("Alpha1", self._Alpha1)
 
-class theta_anion:
-    def __init__(self,
-                 anions = None,
-                 theta = 0.0):
-        self._anions = anions
-        self._theta = theta
+## class theta_anion:
+##     def __init__(self,
+##                  anions = None,
+##                  theta = 0.0):
+##         self._anions = anions
+##         self._theta = theta
         
-    def build(self, a):
-        s = a.addChild("thetaAnion")
-        s["anion1"] = self._anions[0]
-        s["anion2"] = self._anions[1]
-        s.addChild("Theta", self._theta)
+##     def build(self, a):
+##         s = a.addChild("thetaAnion")
+##         s["anion1"] = self._anions[0]
+##         s["anion2"] = self._anions[1]
+##         s.addChild("Theta", self._theta)
 
-class psi_common_cation:
-    def __init__(self,
-                 anions = None,
-                 cation = '',
-                 theta = 0.0,
-                 psi = 0.0):
-        self._anions = anions
-        self._cation = cation
-        self._theta = theta
-        self._psi = psi
+## class psi_common_cation:
+##     def __init__(self,
+##                  anions = None,
+##                  cation = '',
+##                  theta = 0.0,
+##                  psi = 0.0):
+##         self._anions = anions
+##         self._cation = cation
+##         self._theta = theta
+##         self._psi = psi
         
-    def build(self, a):
-        s = a.addChild("psiCommonCation")
-        s["anion1"] = self._anions[0]
-        s["anion2"] = self._anions[1]
-        s["cation"] = self._cation
-        s.addChild("Theta", self._theta)
-        s.addChild("Psi", self._psi)                
+##     def build(self, a):
+##         s = a.addChild("psiCommonCation")
+##         s["anion1"] = self._anions[0]
+##         s["anion2"] = self._anions[1]
+##         s["cation"] = self._cation
+##         s.addChild("Theta", self._theta)
+##         s.addChild("Psi", self._psi)                
 
-class psi_common_anion:
-    def __init__(self,
-                 anion = '',
-                 cations = None,
-                 theta = 0.0,
-                 psi = 0.0):
-        self._anion = anion
-        self._cations = cations
-        self._theta = theta
-        self._psi = psi
+## class psi_common_anion:
+##     def __init__(self,
+##                  anion = '',
+##                  cations = None,
+##                  theta = 0.0,
+##                  psi = 0.0):
+##         self._anion = anion
+##         self._cations = cations
+##         self._theta = theta
+##         self._psi = psi
         
-    def build(self, a):
-        s = a.addChild("psiCommonAnion")
-        s["anion1"] = self._cations[0]
-        s["anion2"] = self._cations[1]
-        s["cation"] = self._anion
-        s.addChild("Theta", self._theta)
-        s.addChild("Psi", self._psi)                
+##     def build(self, a):
+##         s = a.addChild("psiCommonAnion")
+##         s["anion1"] = self._cations[0]
+##         s["anion2"] = self._cations[1]
+##         s["cation"] = self._anion
+##         s.addChild("Theta", self._theta)
+##         s.addChild("Psi", self._psi)                
 
         
-class theta_cation:
-    def __init__(self,
-                 cations = None,
-                 theta = 0.0):
-        self._cations = cations
-        self._theta = theta
+## class theta_cation:
+##     def __init__(self,
+##                  cations = None,
+##                  theta = 0.0):
+##         self._cations = cations
+##         self._theta = theta
         
-    def build(self, a):
-        s = a.addChild("thetaCation")
-        s["cation1"] = self._anions[0]
-        s["cation2"] = self._anions[1]
-        s.addChild("Theta", self._theta)
+##     def build(self, a):
+##         s = a.addChild("thetaCation")
+##         s["cation1"] = self._anions[0]
+##         s["cation2"] = self._anions[1]
+##         s.addChild("Theta", self._theta)
                  
-class pitzer:
-    def __init__(self,
-                 temp_model = "",
-                 A_Debye = "",
-                 default_ionic_radius = -1.0,
+## class pitzer:
+##     def __init__(self,
+##                  temp_model = "",
+##                  A_Debye = "",
+##                  default_ionic_radius = -1.0,
         
-class electrolyte(phase):
-    """An electrolye solution obeying the HMW model."""
-    def __init__(self,
-                 name = '',
-                 elements = '',
-                 species = '',
-                 transport = 'None',
-                 initial_state = None,
-                 solvent = '',
-                 standard_concentration = '',
-                 activity_coefficients = None,
-                 options = []):
+## class electrolyte(phase):
+##     """An electrolye solution obeying the HMW model."""
+##     def __init__(self,
+##                  name = '',
+##                  elements = '',
+##                  species = '',
+##                  transport = 'None',
+##                  initial_state = None,
+##                  solvent = '',
+##                  standard_concentration = '',
+##                  activity_coefficients = None,
+##                  options = []):
         
-        phase.__init__(self, name, 3, elements, species, 'none',
-                       initial_state, options)
-        self._pure = 0
-        self._solvent = solvent
-        self._stdconc = standard_concentration
+##         phase.__init__(self, name, 3, elements, species, 'none',
+##                        initial_state, options)
+##         self._pure = 0
+##         self._solvent = solvent
+##         self._stdconc = standard_concentration
 
-    def conc_dim(self):
-        return (1,-3)
+##     def conc_dim(self):
+##         return (1,-3)
         
-    def build(self, p):
-        ph = phase.build(self, p)
-        e = ph.addChild("thermo")
-        sc = e.addChild("standardConc")
-        sc['model'] = self._stdconc
-        e['model'] = 'HMW'
-        e.addChild("activity_coefficients")
+##     def build(self, p):
+##         ph = phase.build(self, p)
+##         e = ph.addChild("thermo")
+##         sc = e.addChild("standardConc")
+##         sc['model'] = self._stdconc
+##         e['model'] = 'HMW'
+##         e.addChild("activity_coefficients")
         
-        addFloat(e, 'density', self._dens, defunits = _umass+'/'+_ulen+'3')
-        if self._tr:
-            t = ph.addChild('transport')
-            t['model'] = self._tr
-        k = ph.addChild("kinetics")
-        k['model'] = 'none'        
+##         addFloat(e, 'density', self._dens, defunits = _umass+'/'+_ulen+'3')
+##         if self._tr:
+##             t = ph.addChild('transport')
+##             t['model'] = self._tr
+##         k = ph.addChild("kinetics")
+##         k['model'] = 'none'        
 
         
 #-------------------------------------------------------------------