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Copper fume (as Cu)																				Related Pages
Synonyms & Trade Names
			Black copper oxide fume, Copper monoxide fume, Copper(II) oxide fume, Cupric oxide fume
					[Note: Also see specific listing for Copper (dusts and mists).]
CAS No.
			1317-38-0 (CuO)
	RTECS No.
			GL7900000 (CuO)
	DOT ID & Guide

FormulaCuO/​Cu
	Conversion
	IDLH
			100 mg/m3 (as Cu)See: 1317380

Exposure Limits
			NIOSH RELTWA 0.1 mg/m3OSHA PEL TWA 0.1 mg/m3
	Measurement Methods
			**NIOSH** 7029 , 7300 , 7301 , 7303;**OSHA** ID121 , ID125G , ID206
					
					See: NMAM or OSHA Methods
										
Physical Description
			Finely divided black particulate dispersed in air.
					[Note: Exposure may occur in copper & brass plants and during the welding of copper alloys.]													
										
Molecular Weight79.5	
	Boiling PointDecomposes
	Melting Point1879°F (Decomposes)
	SolubilityInsoluble
	Vapor Pressure0 mmHg (approx)
	Ionization PotentialNA											
Specific Gravity6.4 (CuO)	
	Flash PointNA
	Upper Explosive LimitNA
	Lower Explosive LimitNA
CuO: Noncombustible Solid
Incompatibilities & Reactivities
			CuO: Acetylene, zirconium
					[Note: See Copper (dusts and mists) for properties of Copper metal.]
Exposure Routes
			inhalation, skin and/or eye contact
Symptoms
			irritation eyes, upper respiratory system; metal fume fever: chills, muscle ache, nausea, fever, dry throat, cough, lassitude (weakness, exhaustion); metallic or sweet taste; discoloration skin, hair
Target Organs
			Eyes, skin, respiratory system (increased risk with Wilson's disease)
										
Personal Protection/Sanitation
			(See protection codes) **Skin:**No recommendation
							**Eyes:**No recommendation
							**Wash skin:**No recommendation
							**Remove:**No recommendation
							**Change:**No recommendation
	First Aid
			(See procedures)**Breathing:**Respiratory support
Respirator Recommendations
			**NIOSH/OSHA****Up to 1 mg/m3**: (APF = 10) Any particulate respirator equipped with an N95, R95, or P95 filter (including N95, R95, and P95 filtering facepieces) except quarter-mask respirators. The following filters may also be used: N99, R99, P99, N100, R100, P100. Click here for information on selection of N, R, or P filters.(APF = 10) Any supplied-air respirator**Up to 2.5 mg/m3**: (APF = 25) Any supplied-air respirator operated in a continuous-flow mode(APF = 25) Any powered, air-purifying respirator with a high-efficiency particulate filter.**Up to 5 mg/m3**:(APF = 50) Any air-purifying, full-facepiece respirator with an N100, R100, or P100 filter. Click here for information on selection of N, R, or P filters.(APF = 50) Any supplied-air respirator that has a tight-fitting facepiece and is operated in a continuous-flow mode(APF = 50) Any powered, air-purifying respirator with a tight-fitting facepiece and a high-efficiency particulate filter(APF = 50) Any self-contained breathing apparatus with a full facepiece(APF = 50) Any supplied-air respirator with a full facepiece**Up to 100 mg/m3**: (APF = 2000) Any supplied-air respirator that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode**Emergency or planned entry into unknown concentrations or IDLH conditions:** (APF = 10,000) Any self-contained breathing apparatus that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode(APF = 10,000) Any supplied-air respirator that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode in combination with an auxiliary self-contained positive-pressure breathing apparatus**Escape:**(APF = 50) Any air-purifying, full-facepiece respirator with an N100, R100, or P100 filter. Click here for information on selection of N, R, or P filters.Any appropriate escape-type, self-contained breathing apparatus
					Important additional information about respirator selection
See also
			INTRODUCTION
					  ICSC CARD: 0240
					  MEDICAL TESTS: 0057

			
							

			Page last reviewed:  October 30, 2019						Content
							source: 	National Institute for Occupational Safety and Health NIOSH Pocket Guide to Chemical Hazards
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A – NIOSH Potential Occupational Carcinogens
B – Thirteen OSHA-Regulated Carcinogens
C – Supplementary Exposure Limits
D – Substances with No Established RELs
E – OSHA Respirator Requirements for Selected Chemicals
F – Miscellaneous Notes
G – 1989 Air Contaminants Update Project: Exposure Limits NOT in Effect
Type C & CE – Definitions for Type C and Type CE Respirators
Personal Protection and Sanitation Codes
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