Ozone (O3, CAS Reg. No. 10028-15-6) is an unstable blue gas with a pungent, characteristic odor, which occurs freely in nature, It is produced commercially by passing electrical discharges or ionizing radiation through air or oxygen.
The ingredient must be of a purity suitable for its intended use in accordance with § 170.30(h)(1) of this chapter.
In accordance with § 184.1(b)(2), the ingredient is used to treat food only within the following specific limitations: