Copper fume (as Cu)
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CAS
1317-38-0 (CuO)
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CuO/Cu
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RTECS
GL7900000 (CuO)
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Synonyms & Trade Names
CuO: Black copper oxide fume, Copper monoxide fume, Copper(II) oxide fume, Cupric oxide fume
Cu: Copper fume [Note: Also see specific listing for Copper (dusts and mists).]
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DOT ID & Guide
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Exposure
Limits
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NIOSH REL: TWA 0.1 mg/m3
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OSHA PEL: TWA 0.1 mg/m3
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IDLH
100 mg/m3 (as Cu)
See: IDLH INDEX
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Conversion
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Physical Description
Finely divided black particulate dispersed in air. [Note: Exposure may occur in copper & brass plants and during the welding of copper alloys.]
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MW: 79.5
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BP: Decomposes
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MLT: 1879°F (Decomposes)
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Sol: Insoluble
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VP: 0 mmHg (approx)
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IP: NA
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Sp.Gr: 6.4 (CuO)
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Fl.P: NA
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UEL: NA
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LEL: NA
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CuO: Noncombustible Solid
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Incompatibilities & Reactivities
CuO: Acetylene, zirconium [Note: See Copper (dusts and mists) for properties of Copper metal.]
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Measurement Methods
NIOSH 7029, 7300, 7301, 7303; OSHA ID121, ID125G, ID206
See: NMAM or OSHA Methods |
Personal Protection & Sanitation (See protection)
Skin: No recommendation
Eyes: No recommendation
Wash skin: No recommendation
Remove: No recommendation
Change: No recommendation
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First Aid (See procedures)
Breathing: Respiratory support
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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
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Exposure Routes
inhalation, skin and/or eye contact
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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
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Target Organs
Eyes, skin, respiratory system (increase(d) risk with Wilson's disease)
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