Hummel Croton Inc.
10 Harmich Road
South Plainfield, NJ 07080

Tel: 908-754-1800
Fax: 908-754-1815

Data Sheet
Cupric Oxide (Black)

Product Code 03-2475
Total Copper 78.5% Min
Cupric Oxide 98.0% Min
Acid Insolubles 0.5% Max
Iron 0.25% Max
Granulation 99.5% -325 Mesh


PACKAGING: 100 lb. Polylined Metal Pails

USES: Cupric Oxide is used for glass manufacture, ceramics, optical polishing agent, production of flares, dry cell batteries and copper salt production. It can also used for Welding fluxes for bronze and as an exciter in phosphor mixtures. Moderate oral toxicity.

HANDLING: Avoid inhalation and ingestion. Moderate oral toxicity. Avoid getting into eyes or onto skin. There is no exposure limits (OSHA or ACGIH) for cupric oxide; however, the exposure level for finely divided copper is 1mg/m3. This product may be subject to SARA 313 reporting requirements (Cu 79.88%). See SDS for more information.

PROPER SHIPPING NAME: Cupric Oxide (Black)


Cupric Oxide (Black)

CAS Number 1317-38-0
RTEC Number N/A
Melting point 230-240 ° C
EINEC Number 2152691
Molecular Wt. 79.54
Molecular Formula CuO

No warranty, expressed or implied, or merchantability, fitness for a particular purpose or otherwise is made, except that the products herein discussed comply with the chemical description on the labels. Buyer assumes risks of the use, storage and handling. Hummel shall not be liable for any incidental or consequential damages arising directly or indirectly in connection with the purchase, use, storage or handling of this product. The information contained herein is, to the best of our knowledge, true and accurate. However, all recommendations or suggestions are made without guarantee, since the conditions of use are beyond our control. We disclaim any liability incurred in connection with the use of these data or suggestions. This information is not to be taken as a license to operate under, or a recommendation to infringe any patent(s). The observance of all regulations and patents is the responsibility of the user. No agent, representative or employee of this company is authorized to vary any terms of this notice.