---
kind: "section"
citation: "40 C.F.R. § 417.110"
title: "40"
number: "417.110"
heading: "Applicability; description of the SO 3 solvent and vacuum sulfonation subcategory."
url: "https://uscodex.org/cfr/40/417.110"
---

# §417.110. Applicability; description of the SO 3 solvent and vacuum sulfonation subcategory.


The provisions of this subpart are applicable to discharges resulting from the operations in which undiluted SO3 and organic reactant are fed through a mixing nozzle into a vacuum reactor where the sulfonation of the organic reactant takes place.


## Notes

### Authority

Authority: Secs. 301, 304 (b) and (c), 306 (b) and (c), and 307(c) of the Federal Water Pollution Control Act as amended, (the Act); 33 U.S.C. 1251, 1311, 1314 (b) and (c), 1316 (b) and (c) and 1317(c), 86 Stat. 816 et seq.; Pub. L. 92-500.

### Source

Source: 39 FR 13372, Apr. 12, 1974, unless otherwise noted.