21 C.F.R. § 182.2227 Calcium silicate.
Title 21 - Food and Drugs
(a) Product. Calcium silicate. (b) Tolerance. 2 percent and 5 percent. (c) Limitations, restrictions, or explanation. This substance is generally recognized as safe when used at levels not exceeding 2 percent in table salt and 5 percent in baking powder in accordance with good manufacturing practice.
Title 21: Food and Drugs
PART 182—SUBSTANCES GENERALLY RECOGNIZED AS SAFE
Subpart C—Anticaking Agents
§ 182.2227 Calcium silicate.