STOCK PLEDGE AND SECURITY AGREEMENT
                       -----------------------------------
     Stock Pledge and Security Agreement (this "Pledge Agreement"),  dated as of
March 31, 2000, by ALCHEM CAPITAL CORPORATION, having a place of business at ▇▇▇
▇▇▇▇▇▇▇ ▇▇▇▇▇▇, ▇▇▇▇▇▇▇▇▇▇, ▇▇▇▇▇ ▇▇▇▇▇▇▇▇ 29601("Pledgor"),  to and in favor of
GMAC COMMERCIAL CREDIT LLC, having an office at 1290 Avenue of the Americas, ▇▇▇
▇▇▇▇,  ▇▇▇ ▇▇▇▇ ▇▇▇▇▇,  in its  capacity as agent (the  "Agent") for the lenders
(the "Lenders"), parties to the Credit Agreement referred to below.
                              W I T N E S S E T H:
     WHEREAS,  Pledgor  is now the  direct  and  beneficial  owner of all of the
shares of capital stock as more particularly described on Schedule A hereto (the
"Pledged Securities"); and
     WHEREAS,  Agent  (herein,  the  "Pledgee")  and Lenders have entered or are
about to enter into certain  financing  arrangements  with  Pledgor  pursuant to
certain  financing  agreements,   including  without  limitation,  that  certain
Revolving  Credit and  Security  Agreement,  dated as of the date hereof (as the
same now exists or may hereafter be amended, modified,  supplemented,  extended,
renewed, restated or replaced, the "Credit Agreement") pursuant to which Lenders
may,  through the Pledgee,  make loans and advances and provide other  financial
accommodations  to Borrower,  and other  agreements,  documents and  instruments
referred  to therein or at any time  executed  and/or  delivered  in  connection
therewith  or  related  thereto,  including,  but not  limited  to  this  Pledge
Agreement (all of the  foregoing,  together with the Credit  Agreement,  and the
"Other Documents" as defined in the Credit  Agreement,  as the same now exist or
may hereafter be amended, modified, supplemented, extended, renewed, restated or
replaced,  being collectively referred to herein as the "Financing Agreements");
and
     WHEREAS,  in order to induce  Pledgee  and Lenders to enter into the Credit
Agreement and the other Financing  Agreements and to make loans and advances and
provide other financial  accommodations to Pledgor pursuant thereto, Pledgor has
agreed to grant to  Pledgee,  for itself  and the  ratable  benefit of  Lenders,
certain collateral security as set forth herein;
     NOW,  THEREFORE,  in  consideration  of the premises and for other good and
valuable consideration,  receipt of which is hereby acknowledged, Pledgor hereby
agrees as follows:
     1. CERTAIN DEFINITIONS
        -------------------
     As used above and elsewhere in this Pledge  Agreement  the following  terms
shall have the following  meanings (all terms defined in the Uniform  Commercial
Code which are not otherwise  defined herein or in the Credit  Agreement,  shall
have the meanings set forth therein):
                                       -1-
     (a)  "Issuers"  shall mean and include each and every issuer of the Pledged
           -------
Securities.
     (b) "Pledged  Property" shall mean and include the (i) Pledged  Securities,
          -----------------
together  with  all  cash  dividends,  stock  dividends,   redemptions,   stock,
securities  options,  substitutions,  exchanges and other  distributions  now or
hereafter  distributed  by  any of  the  Issuers  with  respect  to the  Pledged
Securities  (all of which shall be  delivered  immediately  by Pledgor  into the
possession of Pledgee),  (ii) Pledgor's  records with respect to the  foregoing,
and (iii) the proceeds of all of the foregoing.
     2. PLEDGE AND GRANT OF SECURITY INTEREST
        -------------------------------------
     As security for the prompt performance, observance and indefeasible payment
in full of all of the  Obligations  (as  hereinafter  defined),  Pledgor  hereby
pledges,  hypothecates,  assigns, transfers and sets over to Pledgee, for itself
and the ratable benefit of Lenders, the Pledged Property, and grants to Pledgee,
for itself and the ratable benefit of Lenders, a continuing security interest in
the Pledged Property, including the proceeds thereof.
     3. OBLIGATIONS SECURED
        -------------------
     The security  interest,  lien and other interests  granted to Pledgee,  for
itself and the ratable  benefit of Lenders,  pursuant  to this  Agreement  shall
secure the prompt  performance,  observance and indefeasible  payment in full of
any and all loans, indebtedness,  liabilities, obligations, covenants and duties
of Pledgor to Lenders  and/or  Pledgee,  of every kind,  nature and  description
arising under or relating to this  Agreement,  the Credit  Agreement,  the other
Financing Agreements,  or transactions  hereunder or under any of the foregoing,
including  principal,  interest,  charges,  fees,  costs and  expenses,  however
evidenced,  whether as  principal,  surety,  endorser,  guarantor or  otherwise,
whether arising under this Agreement,  the Credit Agreement, the other Financing
Agreements  or  otherwise,  whether now existing or hereafter  arising,  whether
arising  before,  during or after the initial or any renewal Term (as defined in
the Credit  Agreement) of the Credit  Agreement or after the commencement of any
case with  respect to Pledgor  under the United  States  Bankruptcy  Code or any
similar  statute  (including,  without  limitation,  the payment of interest and
other amounts which would accrue and become due but for the commencement of such
case), whether direct or indirect, absolute or contingent, joint or several, due
or not due,  primary  or  secondary,  liquidated  or  unliquidated,  secured  or
unsecured,  original,  renewed or  extended,  and  whether  arising  directly or
acquired  from others,  and  including,  without  limitation,  each Lender's and
Pledgee's charges,  commissions,  interest  expenses,  costs and attorneys' fees
chargeable  to  Pledgor  or any  guarantor  under  this  Agreement,  the  Credit
Agreement,  the other  Financing  Agreements  or in  connection  with any of the
foregoing  (all of the foregoing  being  collectively  referred to herein as the
"Obligations").
                                       -2-
     4. REPRESENTATIONS, COVENANTS AND WARRANTIES
        -----------------------------------------
     Pledgor hereby covenants,  represents and warrants with and to Pledgee (all
of such representations, warranties and covenants being contained so long as any
of the Obligations are outstanding), that:
     (a) The Pledged Securities are authorized,  validly issued,  fully paid and
non-assessable  capital stock of the respective  Issuers,  constitute  Pledgor's
entire  interest in the Issuers and constitute all of the issued and outstanding
shares of capital stock of Issuers;
     (b) The Pledged  Property is directly,  legally and  beneficially  owned by
Pledgor,  free and clear of all claims,  liens,  pledges and encumbrances of any
kind, nature or description, except in favor of Pledgee;
     (c) The Pledged Property is not subject to any restrictions relative to the
transfer  thereof,  except as required by  applicable  law,  and Pledgor has the
right to transfer and  hypothecate the Pledged  Property,  free and clear of any
liens, encumbrances or restrictions, except as otherwise provided herein;
     (d) The  Pledged  Property  is duly and  validly  pledged to Pledgee and no
consent or  approval  of any  governmental  or  regulatory  authority  or of any
securities  exchange or the like, nor any consent or approval of any other third
party is necessary to the validity of this Pledge Agreement, other than any such
consents or approval  that have been  obtained and a copy  thereof  furnished to
Pledgee;
     (e) If  Pledgor  shall  receive,  have  registered  in its  name or  become
entitled  to  receive  or  acquire,  or have  registered  in its name any  stock
certificate,  option,  or right  with  respect to the  securities  of any Issuer
(including  without  limitation,  any  certificate  representing a dividend or a
distribution  or exchange of or in connection with any  reclassification  of the
Pledged  Securities)  whether  as an  addition  to,  in  substitution  of, or in
exchange  for any of the  Pledged  Property,  Pledgor  agrees to accept  same as
Pledgee's agent, to hold same in trust for Pledgee and to deliver same forthwith
to  Pledgee  or  Pledgee's  agent  or  bailee  in the  form  received,  with the
endorsement(s)  of Pledgor  where  necessary  and/or  appropriate  powers and/or
assignments  duly  executed to be held by Pledgee or  Pledgee's  agent or bailee
subject  to the terms  hereof,  or if any of the  foregoing  is  uncertificated,
register same with the Pledgee's security interest noted therein, all as further
security for the Obligations;
     (f) Pledgor shall not directly or indirectly  sell,  assign,  transfer,  or
otherwise  dispose of, or grant any option with respect to the Pledged Property,
nor shall Pledgor  create,  incur or permit any further  pledge,  hypothecation,
encumbrance,  lien,  mortgage or security  interest  with respect to the Pledged
Property;
                                       -3-
     (g) So long as no Event of Default has occurred and is continuing,  Pledgor
shall have the right to vote and  exercise all  corporate  rights and to receive
cash  dividends  or real or  personal  property  distributed  by any Issuer with
respect to the Pledged Securities, provided that any stock of any Issuer, or any
options with respect to stock of any Issuer,  so distributed  shall be delivered
to  Pledgee  or  otherwise  made  subject to the  security  interest  therein of
Pledgee,  for itself and the ratable benefit of Lenders,  as provided in Section
3(e) hereof and in the other Financing Agreements; and
     (h) Pledgor shall not permit any Issuer, directly or indirectly,  to issue,
sell, grant, assign,  transfer or otherwise dispose of, any additional shares of
capital  stock of the Issuer or any option or warrant  with respect to, or other
right or security  convertible  into, any additional  shares of capital stock of
such Issuer,  now or hereafter  authorized,  unless all such additional  shares,
options,  warrants,  rights or other such  securities  are made and shall remain
part of the Pledged  Property  subject to the first priority  security  interest
granted herein.
     5. EVENTS OF DEFAULT
        -----------------
     All Obligations shall become immediately due and payable, without notice or
demand,  at the  option  of  Pledgee,  upon  the  occurrence  of any one or more
defaults or events of default under this Pledge Agreement, the Credit Agreement,
or any other Financing Agreement (each an "Event of Default" hereunder).
     6. REMEDIES AFTER DEFAULT
        ----------------------
     Immediately  upon the  occurrence  of an Event of  Default,  and during the
continuance  thereof,  in addition to all other  rights and  remedies of Pledgee
whether provided under law, the Credit Agreement, the other Financing Agreements
or otherwise,  Pledgee shall have the following rights and remedies which may be
exercised  without notice to, or consent by, the Pledgor,  except as such notice
or consent is expressly provided for hereunder:
     (a) Pledgee,  at its option,  shall be empowered to exercise its continuing
right to instruct the Issuers (or the appropriate  transfer agent of the Pledged
Securities)  to  register  any or all of the  Pledged  Property  in the  name of
Pledgee or in the name of Pledgee's  nominee,  and Pledgee may complete,  in any
manner  Pledgee may deem  expedient,  any and all stock powers,  assignments  or
other  documents  heretofore  or  hereafter  executed  in blank by  Pledgor  and
delivered to Pledgee and, in furtherance of the foregoing, Pledgor shall execute
and deliver to Pledgee together herewith a Special Power of Attorney in the form
of EXHIBIT 1 hereto. After said instruction, and without further notice, Pledgee
may  exercise  all voting  and  corporate  rights  with  respect to the  Pledged
Securities  and may  exercise  any and all  rights  of  conversion,  redemption,
exchange, subscription or any other rights, privileges, or options pertaining to
any shares of the  Pledged  Securities  as if Pledgee  were the  absolute  owner
thereof, including without limitation, the right to exchange, at its discretion,
any  and  all  of  the  Pledged  Securities  upon  any  merger,   consolidation,
reorganization, recapitalization or other readjustment with respect thereto.
                                       -4-
Upon the exercise of any such rights,  privileges or options by Pledgee, Pledgee
shall  have  the  right  to  deposit  and  deliver  any and  all of the  Pledged
Securities to any  committee,  depository,  transfer  agent,  registrar or other
designated  agency upon such terms and conditions as Pledgee may determine,  all
without  liability.  However,  Pledgee shall have no duty to exercise any of the
aforesaid  rights,  privileges or options and shall not be  responsible  for any
failure to do so or delay in doing so.
     (b) In addition to all of the rights and remedies of a secured  party under
the Uniform  Commercial  Code or other  applicable  law,  Pledgee shall have the
right,  at  any  time  and  without  demand  of  performance  or  other  demand,
advertisement  or notice of any kind (except the notice  specified below of time
and place of public or private  sale) to or upon  Pledgor,  or any other  Person
(all  and  each of which  demands,  advertisements  and/or  notices  are  hereby
expressly  waived to the  extent  permitted  by law),  to proceed  forthwith  to
collect, redeem, receive, appropriate, sell, or otherwise dispose of and deliver
the  Pledged  Property  or any part  thereof  in one or more  lots at  public or
private  sale or sales at any  exchange,  brokers  board or at any of  Pledgee's
offices or  elsewhere at such prices and on such terms as Pledgee may deem best.
The foregoing disposition(s) may be for cash or on credit or for future delivery
without assumption of any credit risk by Pledgee, with Pledgee and/or any Lender
having the right to purchase all or any part of said Pledged Property so sold at
any such  sale or  sales,  public  or  private,  free of any  right or equity of
redemption  in  Pledgor,  which  right or equity is hereby  expressly  waived or
released by Pledgor. The proceeds of any such collection,  redemption, recovery,
receipt,  appropriation,  realization  or sale,  after  deducting  all costs and
expenses of every kind  incurred  relative  thereto or  incidental  to the care,
safekeeping or otherwise of any and all Pledged  Property or in any way relating
to the rights of Pledgee hereunder  (including,  without limitation,  appraisal,
accountants, and reasonable attorneys' fees and legal expenses) shall be applied
in such order and manner as Pledgee shall  determine.  Pledgor  agrees that five
(5) days prior  notice by Pledgee,  sent by  certified  mail,  postage  prepaid,
designating  the date  after  which a  private  sale may take  place or a public
auction may be held, is reasonable notification of such matters.
     (c) Pledgor  recognizes  that Pledgee may be unable to effect a public sale
of all or part  of the  Pledged  Property  by  reason  of  certain  prohibitions
contained  in the  Securities  Act of 1933,  as amended,  as now or hereafter in
effect  or in  applicable  Blue Sky or other  state  securities  law,  as now or
hereafter in effect, but may be compelled to resort to one or more private sales
to a restricted  group of purchasers  who will be obliged to agree,  among other
things,  to acquire such Pledged  Property for their own account for  investment
and not with a view to the distribution or resale thereof. If at the time of any
sale of the  Pledged  Property  or any  part  thereof,  the  same  shall  not be
effectively  registered (if required) under the Securities Act of 1933 (or other
applicable  state  securities  law) as then in  effect,  Pledgee in its sole and
absolute  discretion is authorized  to sell the Pledged  Property,  or such part
thereof,  by private sale in such manner and under such circumstances as Pledgee
or its  counsel  may deem  necessary  or  advisable  in order that such sale may
legally be effected without  registration.  Pledgor acknowledges and agrees that
private  sales so made may be at prices and other  terms less  favorable  to the
seller than if the Pledged  Property were sold at public sale,  and that Pledgee
has no obligation to delay the
                                       -5-
sale of any  Pledged  Property  for the period of time  necessary  to permit the
Issuer of the Pledged Property, even if such Issuer would agree, to register the
Pledged Property for public sale under such applicable  securities laws. Pledgor
acknowledges  and  agrees  that any  private  sales  made  under  the  foregoing
circumstances shall be deemed to have been in a commercially reasonable manner.
     (d) All of the  Pledgee's and Lenders'  rights and remedies,  including but
not  limited to the  foregoing  and those  otherwise  arising  under this Pledge
Agreement, the Credit Agreement, the other Financing Agreements, the instruments
and  securities  comprising the Pledged  Property,  applicable law or otherwise,
shall be cumulative  and not exclusive and shall be  enforceable  alternatively,
successively or  concurrently as Pledgee and the Lenders may deem expedient.  No
failure or delay on the part of Pledgee or any Lender in  exercising  any of its
options,  powers  or  rights  or  partial  or  single  exercise  thereof,  shall
constitute a waiver of such option, power or right.
     7. FURTHER ASSURANCES
        ------------------
     Pledgor agrees that at any time, and from time to time, upon the request of
Pledgee, Pledgor will execute and deliver such further documents,  including but
not limited to stock powers,  or other  appropriate  instruments  of transfer in
form reasonably  satisfactory to counsel for Pledgee,  and will take or cause to
be taken such further acts as Pledgee may reasonably  request in order to effect
the purposes of this Pledge  Agreement and perfect or continue the perfection of
the security interest in the Pledged Property granted to Pledgee hereunder,  for
itself and the ratable benefit of Lenders, in conformity with applicable law.
     8. MISCELLANEOUS
        -------------
     (a) Pledgee or Pledgee's agent or bailee shall have no duty or liability to
protect or preserve any rights  pertaining  thereto and shall be relieved of all
responsibility  for the Pledged Property upon  surrendering it to Pledgor.  Upon
the termination of the Credit  Agreement and all other Financing  Agreements and
the indefeasible  payment in full of the  Obligations,  this Agreement shall, at
Pledgor's  request and sole  expense,  terminate  and Pledgee  shall execute and
deliver all  instruments  as may be necessary or proper to return or release its
security interest in the Pledged Property.
     (b) No course of dealing between Pledgor and Pledgee or any Lender, nor any
failure  or delay by  Pledgee or any  Lender to  exercise  any  right,  power or
privilege under this Pledge Agreement,  the Credit Agreement or under any of the
other  Financing  Agreements,  shall operate as a waiver hereof or thereof;  nor
shall any single or partial exercise of any right, power or privilege  hereunder
or thereunder  preclude any other or further exercise thereof or the exercise of
any other right,  power or privilege.  No waiver of any provision of this Pledge
Agreement  shall be effective  unless the same shall be in writing and signed by
Pledgee,  and then such waiver shall be effective only in the specific  instance
and for the purpose for which given.
                                       -6-
     (c) This Pledge Agreement may not be changed, modified or amended, in whole
or in part, except by a writing signed by Pledgor and Pledgee.
     (d) The  provisions  of this Pledge  Agreement  are  severable,  and if any
clause or provision hereof shall be held invalid or unenforceable in whole or in
part in any jurisdiction,  then such invalidity or unenforceability shall attach
only to such clause or provision in any such  jurisdiction or part thereof,  and
shall  not  in  any  manner  affect  such  clause  or  provision  in  any  other
jurisdiction  or any other clause or  provision in this Pledge  Agreement in any
jurisdiction.
     (e) EACH PARTY TO THIS PLEDGE  AGREEMENT  HEREBY EXPRESSLY WAIVES ANY RIGHT
TO TRIAL BY JURY OF ANY CLAIM,  DEMAND,  ACTION OR CAUSE OF ACTION ARISING UNDER
THIS PLEDGE AGREEMENT OR ANY OTHER INSTRUMENT, DOCUMENT OR AGREEMENT EXECUTED OR
DELIVERED IN CONNECTION  HEREWITH,  OR IN ANY WAY  CONNECTED  WITH OR RELATED OR
INCIDENTAL TO THE DEALINGS OF THE PARTIES  HERETO OR ANY OF THEM WITH RESPECT TO
THIS PLEDGE AGREEMENT OR ANY OTHER INSTRUMENT, DOCUMENT OR AGREEMENT EXECUTED OR
DELIVERED IN CONNECTION HEREWITH,  OR THE TRANSACTIONS RELATED HERETO OR THERETO
IN EACH CASE WHETHER NOW EXISTING OR HEREAFTER ARISING,  AND WHETHER SOUNDING IN
CONTRACT OR TORT OR  OTHERWISE,  AND EACH PARTY  HEREBY  CONSENTS  THAT ANY SUCH
CLAIM, DEMAND, ACTION OR CAUSE OF ACTION SHALL BE DECIDED BY COURT TRIAL WITHOUT
A JURY,  AND  THAT ANY  PARTY  TO THIS  PLEDGE  AGREEMENT  MAY FILE AN  ORIGINAL
COUNTERPART OR A COPY OF THIS SECTION WITH ANY COURT AS WRITTEN  EVIDENCE OF THE
CONSENTS OF THE PARTIES HERETO TO THE WAIVER OF THEIR RIGHT TO TRIAL BY JURY.
     (f) This Pledge Agreement shall inure to the benefit of Pledgee and Lenders
and  their  respective   successors  and  assigns  permitted  under  the  Credit
Agreement,  and shall be binding  upon  Pledgor and its  successors  and assigns
until all of the Obligations have been  indefeasibly paid in full and the Credit
Agreement and all other Financing Agreements have been terminated.
     (g) In the event any term or provision of this Pledge  Agreement  conflicts
with any term or  provision  of any  other  Financing  Agreement,  such  term or
provision of the Pledge Agreement shall control.
     (h) Any notice or other  communication  required or  permitted  pursuant to
this  Agreement  shall be given in  accordance  with  Section 15.6 of the Credit
Agreement.
                                       -7-
     9. GOVERNING LAW
        -------------
     This Pledge Agreement shall be governed by and construed in accordance with
the laws of the State of New York applied to  contracts  to be performed  wholly
within  the State of New York.  Any  judicial  proceeding  brought by or against
Pledgor with  respect to any of the  Obligations,  this Pledge  Agreement or any
related  agreement may be brought in any court of competent  jurisdiction in the
State of New York,  United States of America,  and, by execution and delivery of
this Pledge  Agreement,  Pledgor  accepts for itself and in connection  with its
properties, generally and unconditionally, the non-exclusive jurisdiction of the
aforesaid  courts,  and irrevocably  agrees to be bound by any judgment rendered
thereby in connection with this Pledge Agreement. Pledgor hereby waives personal
service of any and all process  upon it and  consents  that all such  service of
process may be made by certified or registered mail (return  receipt  requested)
directed  to Pledgor at its address  set forth in Section  8(h),  and service so
made shall be deemed  completed  five (5) days after the same shall have been so
deposited  in the mails of the United  States of America.  Nothing  herein shall
affect the right to serve process in any manner  permitted by law or shall limit
the right of Pledgee or any Lender to bring  proceedings  against Pledgor in the
courts of any other  jurisdiction.  Pledgor waives any objection to jurisdiction
and venue of any action  instituted  hereunder  and shall not assert any defense
based on lack of jurisdiction  or venue or based upon forum non conveniens.  Any
judicial proceeding by Pledgor against Pledgee or any Lender involving, directly
or  indirectly,  any matter or claim in any way  arising  out of,  related to or
connected with this Pledge Agreement or any related agreement,  shall be brought
only in a federal or state court  located in the City of New York,  State of New
York.
     IN WITNESS  WHEREOF,  the  undersigned has caused these presents to be duly
executed and delivered on the day and year first above written.
                                      PLEDGOR:
                                      ALCHEM CAPITAL CORPORATION
                                      By:    /s/ ▇▇▇▇▇ ▇. ▇▇▇▇▇▇
                                            ------------------------------
                                      Title:   Controller
                                            ------------------------------
                                       -8-
                                   SCHEDULE A
                               PLEDGED SECURITIES
                                  Class             Certificate       Number
Issuer                           of Stock              Number        of Shares
Delta ▇▇▇▇▇, Inc.                 Common                 ▇             ▇▇▇
                                       -▇-
                                    EXHIBIT 1
                            SPECIAL POWER OF ATTORNEY
STATE OF                   )
                           ) ss.:
COUNTY OF                  )
     KNOW ALL MEN BY THESE PRESENTS, that ALCHEM CAPITAL CORPORATION,  having an
office at ▇▇▇ ▇▇▇▇▇▇▇  ▇▇▇▇▇▇,  ▇▇▇▇▇▇▇▇▇▇,  ▇▇▇▇▇ ▇▇▇▇▇▇▇▇  ▇▇▇▇▇  (hereinafter
"Pledgor"),  hereby  appoints and  constitutes  GMAC  COMMERCIAL  CREDIT LLC, as
agent,  ("Pledgee") and each officer thereof, its true and lawful attorney, with
full power of  substitution  and with full power and  authority  to perform  the
following  acts on behalf of Pledgor at any time after the occurrence and during
the  continuance  of  an  Event  of  Default  under  the  Pledge  Agreement  (as
hereinafter defined):
     1. Execution and delivery of any and all agreements, documents, instruments
of assignment, or other papers which Pledgee in its reasonable discretion, deems
necessary  or  advisable  for the purpose of  assigning,  selling,  or otherwise
disposing  of all of the right,  title,  and  interest  of Pledgor in and to the
Pledged Securities,  as defined in the Pledge Agreement,  together with all cash
dividends, stock dividends, redemptions, securities or substitutions,  exchanges
or  other  distributions  now  or  hereafter  pledged,   assigned  or  otherwise
transferred  to Pledgee by Pledgor in respect of the Pledged  Securities and all
registrations,  recordings,  reissues,  extensions, and renewals thereof, or for
the purpose of recording,  registering and filing of, or accomplishing any other
formality with respect to the foregoing.
     2.   Execution  and  delivery  of  any  and  all   documents,   statements,
certificates  or  other  papers  which  Pledgee  in its sole  discretion,  deems
necessary or advisable to further the purposes described in paragraph 1 hereof.
     This Power of Attorney,  being a power  coupled  with an interest,  is made
pursuant to a Stock Pledge and Security  Agreement  between  Pledgor and Pledgee
dated as of the date  hereof  (the  "Pledge  Agreement")  and may not be revoked
until the  termination of all of the  "Financing  Agreements"  and  indefeasible
payment in full of all  Pledgor's  "Obligations",  as each such  quoted  term is
defined in the Pledge Agreement.
Dated as of March 31, 2000
                                      PLEDGOR:
                                      ALCHEM CAPITAL CORPORATION
                                      By:   /s/ ▇▇▇▇▇ ▇. ▇▇▇▇▇▇
                                            ------------------------------
                                      Title:  Controller
                                      -10-