Copper (dusts and mists, as Cu)

Synonyms & Trade Names

Copper metal dusts, Copper metal fumes

CAS No.

7440-50-8

RTECS No.

GL5325000

DOT ID & Guide

Formula

Conversion

IDLH

100 mg/m³ (as Cu)
See: 7440508

Exposure Limits

NIOSH REL

TWA 1 mg/m³ [*Note: The REL also applies to other copper compounds (as Cu) except Copper fume.]

OSHA PEL

TWA 1 mg/m³ [*Note: The PEL also applies to other copper compounds (as Cu) except copper fume.]

Measurement Methods

NIOSH 7029 , 7300 , 7301 , 7303 , 9102;
OSHA ID121 , ID125G
See: NMAM or OSHA Methods

Physical Description

Reddish, lustrous, malleable, odorless solid.

Molecular Weight

63.5

Boiling Point

4703°F

Melting Point

1981°F

Solubility

Insoluble

Vapor Pressure

0 mmHg (approx)

Ionization Potential

Specific Gravity

8.94

Flash Point

Upper Explosive Limit

Lower Explosive Limit

Noncombustible Solid in bulk form, but powdered form may ignite.

Incompatibilities & Reactivities

Oxidizers, alkalis, sodium azide, acetylene

Exposure Routes

inhalation, ingestion, skin and/or eye contact

Symptoms

irritation eyes, nose, pharynx; nasal septum perforation; metallic taste; dermatitis; In Animals: lung, liver, kidney damage; anemia

Target Organs

Eyes, skin, respiratory system, liver, kidneys (increased risk with Wilson's disease)

Personal Protection/Sanitation

(See protection codes)
Skin:Prevent skin contact
Eyes:Prevent eye contact
Wash skin:When contaminated
Remove:When wet or contaminated
Change:Daily

First Aid

(See procedures)
Eye:Irrigate immediately
Skin:Soap wash promptly
Breathing:Respiratory support
Swallow:Medical attention immediately

Respirator Recommendations

NIOSH/OSHA

Up to 5 mg/m³:
(APF = 5) Any quarter-mask respirator.
Click here for information on selection of N, R, or P filters.*

Up to 10 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 25 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 50 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 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 (dusts and mists, as Cu)

NIOSH REL

OSHA PEL

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