Exhibit 24.(D)

                               POWER OF ATTORNEY


     KNOW ALL MEN BY THESE PRESENTS, that the undersigned, a director or an
officer, or both, of Cytec Industries Inc., a Delaware corporation ("Cytec"),
does hereby make, constitute and appoint D. Lilley, J. P. Cronin and E. F.
Jackman, the address of each of which is in care of Cytec, 5 Garret Mountain
Plaza, West Paterson, New Jersey 07424, and each of them, the true and lawful
attorney for the undersigned, with full power of substitution and revocation to
each for the undersigned, and in the name, place and stead of the undersigned,
to sign in any and all capacities and to file or cause to be filed, an annual
report on Form 10-K with the Securities and Exchange Commission, pursuant to the
Securities Exchange Act of 1934, as amended, and any and all amendments to such
Form 10-K, hereby giving to each of such attorneys full power to do everything
whatsoever required or necessary to be accomplished in and about the premises as
fully as the undersigned could do if personally present, hereby ratifying and
confirming all that such attorney or substitutes or any of them shall lawfully
do or cause to be done by virtue thereof.

     IN WITNESS WHEREOF, the undersigned has set his hand as of this 29 day of
March, 1999.

                                             /s/ William P. Powell
                                             ---------------------
                                               William P. Powell