Exhibit 31.2

                               CERTIFICATION
                               -------------

Statement  Pursuant  to Section  302 of the  Sarbanes-Oxley  Act of 2002 by
Chief  Financial  Officer  Regarding  Facts and  Circumstances  Relating to
Exchange Act Filings.

I, J. Marvin Quin, Chief Financial Officer of Ashland Inc., certify that:

1.   I have reviewed this quarterly report on Form 10-Q of Ashland Inc.;

2.   Based on my  knowledge,  this  report  does  not  contain  any  untrue
     statement  of a  material  fact  or  omit to  state  a  material  fact
     necessary to make the statements  made, in light of the  circumstances
     under which such  statements were made, not misleading with respect to
     the period covered by this report;

3.   Based on my knowledge,  the financial statements,  and other financial
     information  included in this report,  fairly  present in all material
     respects the financial condition, results of operations and cash flows
     of the  registrant  as of,  and for,  the  periods  presented  in this
     report;

4.   The registrant's  other  certifying  officer and I are responsible for
     establishing  and maintaining  disclosure  controls and procedures (as
     defined in Exchange Act Rules  13a-15(e) and  15d-15(e))  and internal
     control  over  financial  reporting  (as defined in Exchange Act Rules
     13a-15(f) and 15d-15(f)) for the registrant and have:

     a)   Designed such disclosure controls and procedures,  or caused such
          disclosure  controls  and  procedures  to be  designed  under our
          supervision,  to ensure that material information relating to the
          registrant,  including  its  consolidated  subsidiaries,  is made
          known to us by others within those entities,  particularly during
          the period in which this report is being prepared;

     b)   Designed  such  internal  control over  financial  reporting,  or
          caused such  internal  control  over  financial  reporting  to be
          designed under our supervision,  to provide reasonable  assurance
          regarding  the   reliability  of  financial   reporting  and  the
          preparation  of financial  statements  for  external  purposes in
          accordance with generally accepted accounting principles;

     c)   Evaluated  the  effectiveness  of  the  registrant's   disclosure
          controls  and   procedures  and  presented  in  this  report  our
          conclusions  about the  effectiveness of the disclosure  controls
          and  procedures,  as of the  end of the  period  covered  by this
          report based on such evaluation; and

     d)   Disclosed in this report any change in the registrant's  internal
          control  over  financial   reporting  that  occurred  during  the
          registrant's most recent fiscal quarter (the registrant's  fourth
          fiscal  quarter  in  the  case  of an  annual  report)  that  has
          materially  affected,  or  is  reasonably  likely  to  materially
          affect,   the   registrant's   internal  control  over  financial
          reporting; and

5.   The registrant's other certifying officer and I have disclosed,  based
     on our most recent  evaluation  of  internal  control  over  financial
     reporting,  to the  registrant's  auditors and the Audit  Committee of
     registrant's  Board of Directors (or persons performing the equivalent
     functions):

     a)   All  significant  deficiencies  and  material  weaknesses  in the
          design or operation of internal control over financial  reporting
          which are reasonably  likely to adversely affect the registrant's
          ability  to  record,  process,  summarize  and  report  financial
          information; and

     b)   Any fraud,  whether or not material,  that involves management or
          other employees who have a significant  role in the  registrant's
          internal control over financial reporting.



Date:  May 9, 2006                         /s/ J. Marvin Quin
                                          ---------------------------------
                                          Chief Financial Officer
                                         (Principal Financial Officer)