Chemical Datasheet
DI-(2-ETHYLHEXYL)PHOSPHORIC ACID |
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Chemical Identifiers
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Chemical Identifier fields
include common identification numbers, the
NFPA diamond
U.S. Department of Transportation hazard labels, and a general
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from a variety of
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| CAS Number | UN/NA Number | DOT Hazard Label | USCG CHRIS Code |
|---|---|---|---|
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| NIOSH Pocket Guide | International Chem Safety Card | ||
| none | |||
NFPA 704
| Diamond | Hazard | Value | Description | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Health
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2 | Can cause temporary incapacitation or residual injury. | |||||||||
Flammability
|
1 | Must be preheated before ignition can occur. | ||||||||||
Instability
|
0 | Normally stable, even under fire conditions. | ||||||||||
Special
|
(NFPA, 2010)
General Description
Odorless light yellow liquid. Floats on water. (USCG, 1999)
Hazards
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Hazard fields
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special hazard alerts
air and water
reactions, fire hazards, health hazards, a reactivity profile, and
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reactive groups assignments
and
potentially incompatible absorbents.
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Reactivity Alerts
none
Air & Water Reactions
No rapid reaction with air. No rapid reaction with water.
Fire Hazard
Special Hazards of Combustion Products: Irritating phosphorus oxides may be released. (USCG, 1999)
Health Hazard
Contact with liquid irritates eyes and may cause serious injury; consult an eye specialist. Also causes skin irritation on contact. Ingestion produces irritation similar to that caused by strong vinegar. (USCG, 1999)
Reactivity Profile
Organophosphates, such as DI-(2-ETHYLHEXYL)PHOSPHORIC ACID, are susceptible to formation of highly toxic and flammable phosphine gas in the presence of strong reducing agents such as hydrides. Partial oxidation by oxidizing agents may result in the release of toxic phosphorus oxides. Mildly corrosive to most metals; may form flammable hydrogen gas (USCG, 1999).
Belongs to the Following Reactive Group(s)
Potentially Incompatible Absorbents
No information available.
Response Recommendations
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Response Recommendation fields
include isolation and evacuation distances, as well as recommendations for
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Isolation and Evacuation
Excerpt from ERG Guide 153 [Substances - Toxic and/or Corrosive (Combustible)]:
IMMEDIATE PRECAUTIONARY MEASURE: Isolate spill or leak area in all directions for at least 50 meters (150 feet) for liquids and at least 25 meters (75 feet) for solids.
SPILL: Increase the immediate precautionary measure distance, in the downwind direction, as necessary.
FIRE: If tank, rail tank car or highway tank is involved in a fire, ISOLATE for 800 meters (1/2 mile) in all directions; also, consider initial evacuation for 800 meters (1/2 mile) in all directions. (ERG, 2024)
IMMEDIATE PRECAUTIONARY MEASURE: Isolate spill or leak area in all directions for at least 50 meters (150 feet) for liquids and at least 25 meters (75 feet) for solids.
SPILL: Increase the immediate precautionary measure distance, in the downwind direction, as necessary.
FIRE: If tank, rail tank car or highway tank is involved in a fire, ISOLATE for 800 meters (1/2 mile) in all directions; also, consider initial evacuation for 800 meters (1/2 mile) in all directions. (ERG, 2024)
Firefighting
Fire Extinguishing Agents Not to Be Used: Water or foam may cause frothing.
Fire Extinguishing Agents: Dry chemical, alcohol foam, carbon dioxide (USCG, 1999)
Fire Extinguishing Agents: Dry chemical, alcohol foam, carbon dioxide (USCG, 1999)
Non-Fire Response
Neutralizing Agents for Acids and Caustics: Sodium bicarbonate or lime solution (USCG, 1999)
Protective Clothing
Goggles or face shield; rubber gloves; protective clothing. (USCG, 1999)
DuPont Tychem® Suit Fabrics
No information available.
First Aid
EYES: immediately flush with plenty of water for at least 15 min.; see a physician.
SKIN: immediately flush with plenty of water for at least 15 min.
INGESTION: induce vomiting and call a physician. (USCG, 1999)
SKIN: immediately flush with plenty of water for at least 15 min.
INGESTION: induce vomiting and call a physician. (USCG, 1999)
Physical Properties
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Physical Property fields
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Note: For Vapor Density and Specific Gravity, comparing the value to 1.0 can tell you if the chemical will likely sink/rise in air or sink/float in fresh water (respectively). Short phrases have been added to those values below as an aid. However, make sure to also consider the circumstances of a release. The Vapor Density comparisons are only valid when the gas escaping is at the same temperature as the surrounding air itself. If the chemical is escaping from a container where it was pressurized or refrigerated, it may first escape and behave as a heavy gas and sink in the air (even if it has a Vapor Density value less than 1). Also, the Specific Gravity comparisons are for fresh water (density 1.0 g/mL). If your spill is in salt water (density about 1.027 g/mL), you need to adjust the point of comparison. There are some chemicals that will sink in fresh water and float in salt water.
Note: For Vapor Density and Specific Gravity, comparing the value to 1.0 can tell you if the chemical will likely sink/rise in air or sink/float in fresh water (respectively). Short phrases have been added to those values below as an aid. However, make sure to also consider the circumstances of a release. The Vapor Density comparisons are only valid when the gas escaping is at the same temperature as the surrounding air itself. If the chemical is escaping from a container where it was pressurized or refrigerated, it may first escape and behave as a heavy gas and sink in the air (even if it has a Vapor Density value less than 1). Also, the Specific Gravity comparisons are for fresh water (density 1.0 g/mL). If your spill is in salt water (density about 1.027 g/mL), you need to adjust the point of comparison. There are some chemicals that will sink in fresh water and float in salt water.
| Chemical Formula: |
|
Flash Point:
385°F
(USCG, 1999)
Lower Explosive Limit (LEL): data unavailable
Upper Explosive Limit (UEL): data unavailable
Autoignition Temperature: data unavailable
Melting Point:
less than -76°F
(USCG, 1999)
Vapor Pressure: data unavailable
Vapor Density (Relative to Air): data unavailable
Specific Gravity:
0.977
at 68°F
(USCG, 1999)
- Less dense than water; will float
Boiling Point: data unavailable
Molecular Weight:
322.4
(USCG, 1999)
Water Solubility: data unavailable
Ionization Energy/Potential: data unavailable
IDLH: data unavailable
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 |
|---|---|---|---|
| Bis(2-ethylhexyl) hydrogen phosphate (298-07-7) | 15 mg/m3 | 160 mg/m3 | 980 mg/m3 |
(DOE, 2024)
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.
- BIS(2-ETHYLHEXYL) HYDROGEN PHOSPHATE
- BIS(2-ETHYLHEXYL) ORTHOPHOSPHATE
- BIS(2-ETHYLHEXYL) PHOSPHATE
- BIS-(2-ETHYLHEXYL)HYDROGEN PHOSPHATE
- D 2EHPA
- DEHPA
- DI(2-ETHYLHEXYL) PHOSPHATE
- DI(2-ETHYLHEXYL)ORTHOPHOSPHORIC ACID
- DI(2-ETHYLHEXYL)PHOSPHORIC ACID
- DI-(2-ETHYLHEXYL) PHOSPHATE
- DI-(2-ETHYLHEXYL) PHOSPHORIC ACID
- DI-(2-ETHYLHEXYL)PHOSPHORIC ACID
- DI-2-ETHYLHEXYL HYDROGEN PHOSPHATE
- DIOCTYL HYDROGEN PHOSPHATE
- DIOCTYL ORTHOPHOSPHATE
- DIOCTYL PHOSPHATE
- DP 8R
- 2-ETHYL-1-HEXANOL HYDROGEN PHOSPHATE
- HDEHP
- 1-HEXANOL, 2-ETHYL-, HYDROGEN PHOSPHATE
- HOSTAREX PA 216
- HYDROGEN BIS(2-ETHYLHEXYL) PHOSPHATE
- JP 508
- LB 58
- O,O-BIS(2-ETHYLHEXYL)PHOSPHORIC ACID
- O,O-DI(2-ETHYLHEXYL)PHOSPHORIC ACID
- ORTHOPHOSPHORIC ACID 2-ETHYLHEXYL ALCOHOL DIESTER
- P 204
- P 204 (ACID)
- PHOSPHORIC ACID DI(2-ETHYLHEXYL) ESTER
Web site owner:
Office of Response and Restoration
,
National Ocean Service,
National Oceanic and Atmospheric Administration.
USA.gov.
CAMEO Chemicals version 3.1.0 rev 1.