Copper fume (as Cu)

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

Formula

CuO/Cu

Conversion

IDLH

100 mg/m³ (as Cu)
See: 1317380

Exposure Limits

NIOSH REL

TWA 0.1 mg/m³

OSHA 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 Weight

79.5

Boiling Point

Decomposes

Melting Point

1879°F (Decomposes)

Solubility

Insoluble

Vapor Pressure

0 mmHg (approx)

Ionization Potential

Specific Gravity

6.4 (CuO)

Flash Point

Upper Explosive Limit

Lower Explosive Limit

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

Copper fume (as Cu)

NIOSH REL

OSHA PEL

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