EXHIBIT 23.2

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the incorporation by reference in Registration Statement No. 333-131945 on Form S-8 of American Pacific Corporation of our report dated April 16, 2007, relating to the statement of net assets available for benefits as of September 30, 2006 of the Ampac Fine Chemicals LLC Bargaining Unit 401(k) Plan, appearing in this Annual Report on Form 11-K of Ampac Fine Chemicals LLC Bargaining Unit 401(k) Plan for the year ended September 30, 2007.

/s/ DELOITTE & TOUCHE LLP

Las Vegas, Nevada
March 27, 2008