EXHIBIT 5

                     WOLF, BLOCK, SCHORR AND SOLIS-COHEN LLP

                                                   1650 Arch Street
                                                   22nd Floor
                                                   Philadelphia, PA  19103-2097
                                                   T: 215 977-2000
                                                   F: 215 977-2334
                                                   www.wolfblock.com

July 10, 2001


Quaker Chemical Corporation
Elm and Lee Streets
Conshohocken, Pennsylvania  19428

Re:     Quaker Chemical Corporation
        Registration Statement on Form S-8 relating to the
        Quaker Chemical Corporation 2001 Long-Term Performance Incentive Plan
        -------------------------------------------------------------

Ladies and Gentlemen:

We have acted as counsel to Quaker Chemical Corporation, a Pennsylvania
corporation (the "Company"), in connection with the preparation of a
Registration Statement on Form S-8 (the "Registration Statement") to be filed
with the Securities and Exchange Commission under the Securities Act of 1933, as
amended (the "Act"), relating to 1,000,000 shares of the Company's Common Stock,
$1.00 par value (the "Common Stock"), issuable under the Quaker Chemical
Corporation 2001 Long-Term Performance Incentive Plan (the "Plan"). In so
acting, we have examined such certificates, records, statutes and other
documents as we have deemed relevant in rendering this opinion.

As to matters of fact, we have relied on representations of officers of the
Company. In our examination, we have assumed the genuineness of documents
submitted to us as originals and the conformity with the originals of all
documents submitted to us as copies thereof.

The 1,000,000 shares to which the Registration Statement relates may be issued
from time to time on a delayed or continuous basis, and this opinion is limited
to the laws, including applicable rules and regulations, in effect on the date
hereof. We assume no obligation to update such opinion.

Based on the foregoing, it is our opinion that such of the 1,000,000 shares of
Common Stock covered by the Registration Statement as are issued by the Company
to participants under the Plan, when issued in accordance with the terms of the
Plan and, with respect to each award of such shares pursuant to the Plan, when
any restriction period applicable to the shares is completed and any performance
criteria imposed with respect to such shares are satisfied, will be validly
issued, fully paid and nonassessable shares of Common Stock.

The opinion set forth above is limited to Pennsylvania law.





We hereby consent to the filing of this opinion as Exhibit 5 to the Registration
Statement. In giving such consent, we do not thereby admit that we are acting
within the category of persons whose consent is required under Section 7 of the
Act or the rules or regulations of the Securities and Exchange Commission
thereunder.


Very truly yours,


/s/ WOLF, BLOCK, SCHORR and SOLIS-COHEN LLP