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OCR for page 59
59 Name: BENTONITE-TYPE CLAY CAS No.: 1302-78-9 Chemical Formula: Description . White to pale tan powder Use: Used as clarification aid. Purity Requirements: Undefinable NAS/CWIC 028/82 Formula Weight: Unknown A maximum dosage of 15 mg clay/liter of water was con- sidered, and at that dosage bentonite-type clays are not known to contribute any contaminants that adversely affect the potability of drinking water.