UNITED STATES
               SECURITIES AND EXCHANGE COMMISSION
                     WASHINGTON, D.C.  20549

                          SCHEDULE 13G

            Under the Securities Exchange Act of 1934
             (Amendment No.9 Invista Capital Management, Inc.)*
             (Amendment No.3 Principal Mutual Life Insurance Co.)*

                        Quaker Chemical Corp.                 
                          (Name of Issuer)

                           Common Stock
                 (Title and Class of Securities)

                          747316107
                         (CUSIP Number)

                         









     *The remainder of this cover page shall be filled out for a
reporting person's initial filing on this form with respect to the
subject class of securities, and for any subsequent amendment
containing information which would alter disclosures provided in a
prior cover page.

     The information required on the remainder of this cover page
shall not be deemed to be "filed" for the purpose of Section 18 of
the Securities Exchange Act of 1934 ("Act") or otherwise subject to
the liabilities of that section of the Act but shall be subject to
all other provisions of the Act (however, see the Notes).
                          SCHEDULE 13G

CUSIP No.026375105                                    Page 2 of 4

1    NAME OF REPORTING PERSON
     S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
           Invista Capital Management, Inc.

           Principal Mutual Life Insurance Company          

2    CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*      (a)
                                                            (b)

3    SEC USE ONLY

4    CITIZENSHIP OR PLACE OF ORGANIZATION
            
           Invista Capital Management, Inc.                   State of Iowa

           Principal Mutual Life Insurance Company            State of Iowa    
  


NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH

           5    SOLE VOTING POWER 
           Invista Capital Management, Inc.                              0
           Principal Mutual Life Insurance Company                       0

           6    SHARED VOTING POWER
           Invista Capital Management, Inc.                              334,200
           Principal Mutual Life Insurance Company                       334,200

           7    SOLE DISPOSITIVE POWER
           Invista Capital Management, Inc.                              0     
           Principal Mutual Life Insurance Company                       0

           8    SHARED DISPOSITIVE POWER
           Invista Capital Management, Inc.                              334,200
           Principal Mutual Life Insurance Company                       334,200

9    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
           Invista Capital Management, Inc.                              334,200
           Principal Mutual Life Insurance Company                       334,200

10   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN
     SHARES*

11   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
           Invista Capital Management, Inc.                              3.9%
           Principal Mutual Life Insurance Company                       3.9%

12   TYPE OF REPORTING PERSON*

           Invista Capital Management, Inc.                         IA
           Principal Mutual Life Insurance Company      HC
Schedule 13G

ITEM 1(a) Name of Issuer:                          Quaker Chemical Corp.

ITEM 1(b) Address of Issuer's Principal Executive Offices:
                                                   Elm & Lee Streets
                                                   Conshohocken, PA 19428-0809
_
ITEM 2(a) Name of Persons Filing: 
              Invista Capital Management, Inc.
              Principal Mutual Life Insurance Co.

ITEM 2(b) Address of Principal Business Office:
Invista Capital Management, Inc.              Principal Mutual Life Ins. Co.
699 Walnut                                    711 High Street
1500 Hub Tower                                Des Moines, IA  50392-0088
Des Moines, IA  50309

ITEM 2(c) Citizenship:  
              Invista Capital Management, Inc. - State of Iowa
              Principal Mutual Life Insurance Co. - State of Iowa

ITEM 2(d) Title of Class of Securities:  Common Stock

ITEM 2(e) CUSIP Number:  747316107

ITEM 3: This statement is filed pursuant to Rule 13d-2(b) by a person who
is an investment advisor registered under Section 203 of the Investment
Advisers Act of 1940, and a person who is a parent holding company in
accordance with Section 240.13d-1(b)(1)(ii)(G).

ITEM 4: Ownership: (a)  Amount Beneficially Owned:
334,200 Shares Common Stock presently held by Invista Cap. Mgmt.
334,200 Shares Common Stock presently held by Principal Mutual

                  (b) Percent of Class:
3.90%     Invista Capital Management, Inc.
3.90%     Principal Mutual Life Insurance Co.

                  (c) Number of shares as to which such person has:

                  (i) Sole power to vote or to direct the vote: 
0 Invista Capital Management, Inc.
0 Principal Mutual Life Insurance Co.

                  (ii) Shared power to vote or to direct the vote:
334,200 Shares Common Stock presently held by Invista Capital Management,   
        Inc.
334,200 Shares Common Stock presently held by Principal Mutual Life         
        Insurance Co.

                  (iii) Sole power to dispose or to direct the disposition of:
0 Invista Capital Management, Inc.
0 Principal Mutual Life Ins. Co.

                  (iv) Shared power to dispose or to direct the disposition of:
334,200 Shares Common Stock presently held by Invista Capital Management,   
        Inc.
334,200 Shares Common Stock presently held by Principal Mutual Life
        Insurance Co.

ITEM 5:       Ownership of 5% or Less of Class:  This statement is being filed
to report the fact that as of the date hereof the reporting  persons
indicated below has ceased to be the beneficial owner of more than 5
percent of the class of securities addressed by this report.

              Inivista Capital Management                                X
              Principal Mutual Life Insurance Co.                        X
                  
ITEM 6:       Ownership of More than 5% on Behalf of Another Person:  Not
Applicable

ITEM 7:       Identification and Classification of the Subsidiary which Acquired
the Security being Reported on by the Parent Holding Company:  See Exhibit
attached

ITEM 8:       Identification and Classification of Members of the Group:  Not
Applicable

ITEM 9:       Notice of Dissolution of Group:  Not applicable

ITEM 10:      Certification:  By signing below I certify that, to the best of my
knowledge and belief, the securities referred to above were acquired in the
ordinary course of business and were not acquired for the purpose of and do
not have the effect of  changing or influencing the control of the issuer
of such securities and were not acquired in connection with or as a
participant in any transaction having such purposes or effect.

                                     SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I
certify that the information set forth in this statement is true, complete
and correct.

INVISTA CAPITAL MANAGEMENT, INC.                                 


By /s/ Lisa M. Smith
Lisa M. Smith, Financial & Compliance Officer                    

PRINCIPAL MUTUAL LIFE INSURANCE COMPANY
By:  INVISTA CAPITAL MANAGEMENT, INC.                            


By /s/ Lisa M. Smith
Lisa M. Smith, Financial & Compliance Officer


Dated this 14th day of February, 1997.

the Principal                            Principal Mutual
Financial Group                        Life Insurance Company


MEMORANDUM

February 1, 1995

TO:       Ralph Kosmicke, President
          Invista Capital Management, Inc.

FROM:     Ron Keller, Executive Vice President
          Principal Mutual Life Insurance Company

RE:       Schedule 13G Filings

This is to confirm that Principal Mutual Life Insurance Company
has authorized Invista Capital Management, Inc. to file Schedule
13Gs with the Securities and Exchange Commission on behalf of
Principal Mutual Life Insurance Company.  In addition, Principal
Mutual hereby authorizes Invista to sign to Schedule 13Gs that
Invista files with the Securities and Exchange Commission on
behalf of Principal Mutual.  Principal Mutual hereby authorizes
Invista to use any of its executive officers as well as Lisa M.
Smith, Invista's current compliance officer, to act as Invista's
authorized representative in signing Schedule 13Gs that Invista
files with the Securities and Exchange Commission on behalf of
Principal Mutual.

This authorization shall remain in effect until further notice.

Principal Mutual understands and agrees that this authorization
will be filed as an exhibit, where necessary, to any Schedule
13Gs Invista files on behalf of Principal Mutual.


 /s/ Ron Keller                     
Ron Keller
Executive Vice President

Mailing Address: Des Moines, Iowa 50392-0001 
(515)247-5111/FAX (515) 247-5930
INVISTA
Capital Management, Inc.   
Ralph Kosmicke President



MEMORANDUM


January 26, 1995


TO:       Lisa M. Smith, Manager - Administrative Systems
          Invista Capital Management, Inc.

FROM:     Ralph Kosmicke, President
          Invista Capital Management, Inc.

RE:       Schedule 13G Filings

This is to confirm that Invista Capital Management, Inc.
authorizes you, Lisa M. Smith, to act as its representative in
signing Schedule 13Gs that are filed with the Securities and
Exchange Commission on behalf of Invista.

This authorization shall remain in effect until further notice.

I understand and agree that this authorization will be filed as
an exhibit, where necessary, to any Schedule 13G Invista files
with the Securities and Exchange Commission.





 /s/ Ralph Kosmicke               
Ralph Kosmicke
President




1500 Hub Tower/699 Walnut/Des Moines, Iowa 50309/(515)247-6582

                   Looking ahead of the marketSM










          EXHIBIT 99.1



          Invista Capital Management, Inc.
          Item 3 Classification:
          (e)  Investment  Adviser  registered  under Section  203  of  the
          Investment Advisers Act of 1940