Ammonium cerium(IV) nitrate Product Stewardship Summary December 2017

CeH4N7O18

Chemical Name: Diammonium hexanitratocerate Synonyms: Ceric ammonium nitrate CAS Number: 16774-21-3 CAS Name: Diammonium hexanitratocerate EC (EINECS) Number: 240-827-6 Document Number: GPS-17-16

• Ammonium cerium (IV) nitrate is used primarily in the production of semiconductors and as an oxidizing reagent in many oxidation-reduction titrations. Another application of this compound is its use as a catalyst in polymerization of olefins.

• The risk of exposure may occur in facilities and workplaces processing and handling ammonium cerium (IV) nitrate. Workers using this substance are at risk of exposure primarily via inhalation and skin contact and to a lesser extent with ingestion. Good manufacturing and industrial hygiene practices should be followed to prevent or reduce exposure. See the Safety Data Sheet (SDS) for additional information.

• Ammonium cerium (IV) nitrate is an orange crystalline solid having a stinging odor. It is soluble in water. It is corrosive to metals. Materials which are incompatible with this substance include organic materials, powdered metals and reducing agents. Ammonium cerium (IV) nitrate is a powerful oxidizing agent and may intensify fire. Individuals should take precautions to avoid accidental contact of this substance with combustible materials or other substances which readily oxidize.

• Limited data on the toxicity of ammonium cerium (IV) nitrate indicate that it is only slightly harmful if swallowed resulting in gastric distress and nausea. This substance is corrosive to the skin and eye causing severe skin burns and eye damage. Repeated contact with the skin can result in allergic skin reactions.

• Ammonium cerium (IV) nitrate is not identified as a known or anticipated carcinogen by NTP, IARC, or OSHA.

• This product should not be allowed to enter the surrounding soil, waterways, drains and sewers. Based on evidence from ecotoxicological studies, it is considered to be very toxic to some forms of aquatic life.

This product stewardship summary is intended to give general information about the chemical or categories of chemicals addressed. It is not intended to provide an in-depth discussion of all health and safety information. Additional information on the chemical is available through the applicable Material Safety Data Sheet which should be consulted before use of the chemical. The product stewardship summary does not supplant or replace required regulatory and/or legal communication documents. Statements concerning use of our products are made without warranty that any such use is free of patent infringement and are not recommendations to infringe any patent.

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Chemical Book: 16774-21-3

Version 1.0 Current Issue Date: December 2017 Document Number: GPS -17-16 Page 2 of 2