21 CFR 182.1711
§ 182.1711 Silica aerogel.
United States · 21 CFR — Food and Drugs · Status: effective
Cite this
- Citation
- 21 CFR 182.1711, § 182.1711 Silica aerogel, United States, version 1 as recorded 2026-07-09, yourstate.us, https://yourstate.us/provision/85398
- Permanent ID
ys:prov:85398@1- SHA-256
6f14048a9d1888075a4cc9bd368aecf30e12f3fa11359231de0472aca2e5a3a6
The hash is SHA-256 of this version's text, with every run of whitespace collapsed to a single space and the ends trimmed. The ID always leads back here, and checking it says whether the text you cited is still the current version.
Full text
(a) Product. Silica aerogel as a finely powdered microcellular silica foam having a minimum silica content of 89.5 percent.
(b) [Reserved]
(c) Limitations, restrictions, or explanation. This substance is generally recognized as safe when used as a component of an anti-foaming agent in accordance with good manufacturing practice.
Legislative history
This is a federal regulation, adopted through agency rulemaking under the Administrative Procedure Act — not enacted by a recorded vote of Congress.