Chemical Datasheet
TANTALUM (METAL AND OXIDE DUST) |
Chemical Identifiers
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Chemical Identifier fields
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NFPA diamond
U.S. Department of Transportation hazard labels, and a general
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| CAS Number | UN/NA Number | DOT Hazard Label | USCG CHRIS Code |
|---|---|---|---|
|
none | data unavailable | none |
| NIOSH Pocket Guide | International Chem Safety Card | ||
Tantalum (metal and oxide dust, as Ta)
|
|||
NFPA 704
data unavailable
General Description
Tantalum dust is a black odorless powder. mp: 2996°C, bp: approx. 5250°C. Density: 16.65 g/cm3. Insoluble in water. Tantalum oxide dust is a white, microcrystalline powder mp: 1800°C. Density: 7.6 g/cm3. Insoluble in water. The mixture is listed as a toxic inhalation hazard by OSHA.
Hazards
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Hazard fields
include
special hazard alerts
air and water
reactions, fire hazards, health hazards, a reactivity profile, and
details about
reactive groups assignments
and
potentially incompatible absorbents.
The information in CAMEO Chemicals comes from a variety of
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Reactivity Alerts
- Strong Reducing Agent
- Pyrophoric
Air & Water Reactions
Metal, Combustible Solid; powder ignites SPONTANEOUSLY in air. No rapid reaction with water.
Fire Hazard
No information available.
Health Hazard
Excerpt from NIOSH Pocket Guide for Tantalum (metal and oxide dust, as Ta):
Exposure Routes: Inhalation, skin and/or eye contact
Symptoms: Irritation eyes, skin; In Animals: pulmonary irritation
Target Organs: Eyes, skin, respiratory system (NIOSH, 2022)
:Exposure Routes: Inhalation, skin and/or eye contact
Symptoms: Irritation eyes, skin; In Animals: pulmonary irritation
Target Organs: Eyes, skin, respiratory system (NIOSH, 2022)
Reactivity Profile
TANTALUM dust reacts rapidly with oxidizing agents (oxygen, fluorine, chlorine). Highly flammable in air, igniting spontaneously when dry. (Lewis, 3rd Ed, 1993). Dissolves in molten bases (such as sodium hydroxide). Insoluble in aqueous bases. Insoluble in acids except hydrofluoric acid and fuming sulfuric acid. Tantalum in bulk form (bar, sheet, etc.) is much less reactive than it is in powdered form.
TANTALUM OXIDE dust is generally unreactive at room conditions. Insoluble in water and acids with the exception of hydrofluoric acid. Reacts when strongly heated with sodium carbonate.
TANTALUM OXIDE dust is generally unreactive at room conditions. Insoluble in water and acids with the exception of hydrofluoric acid. Reacts when strongly heated with sodium carbonate.
Belongs to the Following Reactive Group(s)
Potentially Incompatible Absorbents
No information available.
Response Recommendations
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The
Response Recommendation fields
include isolation and evacuation distances, as well as recommendations for
firefighting, non-fire response, protective clothing, and first aid. The
information in CAMEO Chemicals comes from a variety of
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Isolation and Evacuation
No information available.
Firefighting
No information available.
Non-Fire Response
No information available.
Protective Clothing
Excerpt from NIOSH Pocket Guide for Tantalum (metal and oxide dust, as Ta):
Skin: No recommendation is made specifying the need for personal protective equipment for the body.
Eyes: No recommendation is made specifying the need for eye protection.
Wash skin: No recommendation is made specifying the need for washing the substance from the skin (either immediately or at the end of the work shift).
Remove: No recommendation is made specifying the need for removing clothing that becomes wet or contaminated.
Change: No recommendation is made specifying the need for the worker to change clothing after the workshift. (NIOSH, 2022)
:Skin: No recommendation is made specifying the need for personal protective equipment for the body.
Eyes: No recommendation is made specifying the need for eye protection.
Wash skin: No recommendation is made specifying the need for washing the substance from the skin (either immediately or at the end of the work shift).
Remove: No recommendation is made specifying the need for removing clothing that becomes wet or contaminated.
Change: No recommendation is made specifying the need for the worker to change clothing after the workshift. (NIOSH, 2022)
DuPont Tychem® Suit Fabrics
No information available.
First Aid
Excerpt from NIOSH Pocket Guide for Tantalum (metal and oxide dust, as Ta):
Eye: IRRIGATE IMMEDIATELY - If this chemical contacts the eyes, immediately wash (irrigate) the eyes with large amounts of water, occasionally lifting the lower and upper lids. Get medical attention immediately.
Breathing: RESPIRATORY SUPPORT - If a person breathes large amounts of this chemical, move the exposed person to fresh air at once. If breathing has stopped, perform artificial respiration. Keep the affected person warm and at rest. Get medical attention as soon as possible. (NIOSH, 2022)
:Eye: IRRIGATE IMMEDIATELY - If this chemical contacts the eyes, immediately wash (irrigate) the eyes with large amounts of water, occasionally lifting the lower and upper lids. Get medical attention immediately.
Breathing: RESPIRATORY SUPPORT - If a person breathes large amounts of this chemical, move the exposed person to fresh air at once. If breathing has stopped, perform artificial respiration. Keep the affected person warm and at rest. Get medical attention as soon as possible. (NIOSH, 2022)
Physical Properties
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Physical Property fields
include properties such as vapor pressure and
boiling point, as well as explosive limits and
toxic exposure thresholds
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| Chemical Formula: |
|
Flash Point: data unavailable
Lower Explosive Limit (LEL): data unavailable
Upper Explosive Limit (UEL): data unavailable
Autoignition Temperature: data unavailable
Melting Point:
5425°F
(NIOSH, 2022)
Vapor Pressure:
0 mmHg
(approx)
(NIOSH, 2022)
Vapor Density (Relative to Air): data unavailable
Specific Gravity:
16.65
(metal), 14.40 (powder)
(NIOSH, 2022)
Boiling Point:
9797°F
at 760 mmHg
(NIOSH, 2022)
Molecular Weight:
180.9
(NIOSH, 2022)
Water Solubility:
Insoluble
(NIOSH, 2022)
Ionization Energy/Potential: data unavailable
IDLH:
2500 mg Ta/m3
(NIOSH, 2022)
AEGLs (Acute Exposure Guideline Levels)
No AEGL information available.ERPGs (Emergency Response Planning Guidelines)
No ERPG information available.PACs (Protective Action Criteria)
| Chemical | PAC-1 | PAC-2 | PAC-3 |
|---|---|---|---|
| Tantalum (7440-25-7) | 10 mg/m3 | 11 mg/m3 | 64 mg/m3 |
(DOE, 2018)
Regulatory Information
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The
Regulatory Information fields
include information from
the U.S. Environmental Protection Agency's Title III Consolidated List of
Lists,
the U.S. Cybersecurity and Infrastructure Security Agency's Chemical Facility
Anti-Terrorism Standards,
and the U.S. Occupational Safety and Health Administration's
Process Safety Management of Highly Hazardous Chemicals Standard List
(see more about these
data sources).
EPA Consolidated List of Lists
No regulatory information available.CISA Chemical Facility Anti-Terrorism Standards (CFATS)
No regulatory information available.OSHA Process Safety Management (PSM) Standard List
No regulatory information available.Alternate Chemical Names
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This section provides a listing of alternate names for this chemical,
including trade names and synonyms.
- C 606
- JIS H4701 TAH
- JIS TAH
- TANTALIC ACID ANHYDRIDE
- TANTALUM
- TANTALUM (METAL AND OXIDE DUST)
- TANTALUM METAL
- TANTALUM METAL: TANTALUM-181
- TANTALUM OXIDE
- TANTALUM PENTOXIDE
- TANTALUM-181
Web site owner:
Office of Response and Restoration,
National Ocean Service,
National Oceanic and Atmospheric Administration.
USA.gov.
CAMEO Chemicals version 2.8.0 rev 1.