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Chemical Datasheet
Chemical Identifiers
CAS Number |
UN/NA Number |
DOT Hazard Label |
USCG CHRIS Code |
|
none
|
data unavailable
|
none
|
NIOSH Pocket Guide |
International Chem Safety Card |
none
|
|
NFPA 704
data unavailable
General Description
Odorless colorless crystals or white powder. Sublimes readily at 217°F and 54 mmHg. Cooling saline taste.
Hazards
Reactivity Alerts
none
Air & Water Reactions
Water soluble. Aqueous solutions are neutral to litmus (NTP, 1992).
Fire Hazard
This chemical is combustible. (NTP, 1992)
Health Hazard
SYMPTOMS: Symptoms of exposure to this compound include burning in the throat, watery to bloody diarrhea, abdominal pain, oliguria, fall in blood pressure, anuria, cardiovascular collapse, delirium, convulsions, muscular weakness with respiratory failure, coma, hemorrhages and kidney and liver injury. It may cause nausea, vomiting and bone marrow depression. Other symptoms may include central nervous system depression and focal degeneration in the brain. Exposure may lead to gastroenteric hemorrhages and drowsiness. It may also cause irritation. Anorexia and dizziness have been reported. Large doses make debilitated persons more prone to hepatitis or fatal hepatic necrosis.
ACUTE/CHRONIC HAZARDS: This compound is toxic by ingestion. It is harmful by inhalation or skin absorption. It may cause irritation. When heated to decomposition it emits toxic fumes of carbon monoxide, carbon dioxide and nitrogen oxides. (NTP, 1992)
Reactivity Profile
URETHANE is incompatible with alkalis, acids, chloral hydrate, camphor, menthol and thymol. Also incompatible with antipyrine and salol. May react with strong oxidizing agents. Liquefies with benzoic acid, resorcinol and salicylic acid. Reacts with phosphorus pentachloride to form an explosive product (NTP, 1992).
Belongs to the Following Reactive Group(s)
Potentially Incompatible Absorbents
No information available.
Response Recommendations
Isolation and Evacuation
No information available.
Firefighting
Fires involving this material can be controlled with a dry chemical, carbon dioxide or Halon extinguisher. A water spray may also be used. (NTP, 1992)
Non-Fire Response
SMALL SPILLS AND LEAKAGE: If you spill this chemical, you should dampen the solid spill material with water, then transfer the dampened material to a suitable container. Use absorbent paper dampened with water to pick up any remaining material. Seal your contaminated clothing and the absorbent paper in a vapor-tight plastic bag for eventual disposal. Wash all contaminated surfaces with a soap and water solution. Do not reenter the contaminated area until the Safety Officer (or other responsible person) has verified that the area has been properly cleaned.
STORAGE PRECAUTIONS: You should store this material under ambient temperatures. (NTP, 1992)
Protective Clothing
RECOMMENDED RESPIRATOR: Where the neat test chemical is weighed and diluted, wear a NIOSH-approved half face respirator equipped with a combination filter cartridge, i.e. organic vapor/acid gas/HEPA (specific for organic vapors, HCl, acid gas, SO2 and a high efficiency particulate filter). (NTP, 1992)
DuPont Tychem® Suit Fabrics
No information available.
First Aid
EYES: First check the victim for contact lenses and remove if present. Flush victim's eyes with water or normal saline solution for 20 to 30 minutes while simultaneously calling a hospital or poison control center. Do not put any ointments, oils, or medication in the victim's eyes without specific instructions from a physician. IMMEDIATELY transport the victim after flushing eyes to a hospital even if no symptoms (such as redness or irritation) develop.
SKIN: IMMEDIATELY flood affected skin with water while removing and isolating all contaminated clothing. Gently wash all affected skin areas thoroughly with soap and water. If symptoms such as redness or irritation develop, IMMEDIATELY call a physician and be prepared to transport the victim to a hospital for treatment.
INHALATION: IMMEDIATELY leave the contaminated area; take deep breaths of fresh air. IMMEDIATELY call a physician and be prepared to transport the victim to a hospital even if no symptoms (such as wheezing, coughing, shortness of breath, or burning in the mouth, throat, or chest) develop. Provide proper respiratory protection to rescuers entering an unknown atmosphere. Whenever possible, Self-Contained Breathing Apparatus (SCBA) should be used; if not available, use a level of protection greater than or equal to that advised under Protective Clothing.
INGESTION: DO NOT INDUCE VOMITING. If the victim is conscious and not convulsing, give 1 or 2 glasses of water to dilute the chemical and IMMEDIATELY call a hospital or poison control center. Be prepared to transport the victim to a hospital if advised by a physician. If the victim is convulsing or unconscious, do not give anything by mouth, ensure that the victim's airway is open and lay the victim on his/her side with the head lower than the body. DO NOT INDUCE VOMITING. IMMEDIATELY transport the victim to a hospital.
OTHER: Since this chemical is a known or suspected carcinogen you should contact a physician for advice regarding the possible long term health effects and potential recommendation for medical monitoring. Recommendations from the physician will depend upon the specific compound, its chemical, physical and toxicity properties, the exposure level, length of exposure, and the route of exposure. (NTP, 1992)
Physical Properties
Flash Point:
198°F
(NTP, 1992)
Lower Explosive Limit (LEL): data unavailable
Upper Explosive Limit (UEL): data unavailable
Autoignition Temperature: data unavailable
Melting Point:
118 to 122°F
(NTP, 1992)
Vapor Pressure:
5 mmHg
at 150.4°F
; 10 mmHg at 172.0°F; 20 mmHg at 195.8°F
(NTP, 1992)
Vapor Density (Relative to Air):
3.07
(NTP, 1992)
- Heavier than air; will sink
Specific Gravity:
0.9862
at 70°F
(NTP, 1992)
- Less dense than water; will float
Boiling Point:
360 to 363°F
at 760 mmHg
(NTP, 1992)
Molecular Weight:
89.09
(NTP, 1992)
Water Solubility:
greater than or equal to 100 mg/mL
at 72°F
(NTP, 1992)
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 |
Urethane; (Carbamic acid, ethyl ester; Ethyl carbamate) (51-79-6)
|
5.4 mg/m3 |
60 mg/m3 |
360 mg/m3 |
(DOE, 2018)
Regulatory Information
EPA Consolidated List of Lists
Regulatory Name |
CAS Number/ 313 Category Code |
EPCRA 302 EHS TPQ |
EPCRA 304 EHS RQ |
CERCLA RQ |
EPCRA 313 TRI |
RCRA Code |
CAA 112(r) RMP TQ |
Carbamic acid, ethyl ester |
51-79-6 |
|
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100 pounds |
X |
U238 |
|
Ethyl carbamate |
51-79-6 |
|
|
100 pounds |
X |
U238 |
|
Urethane |
51-79-6 |
|
|
100 pounds |
313 |
U238 |
|
(EPA List of Lists, 2022)
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
- A 11032
- CARBAMIC ACID, ETHYL ESTER
- ETHYL AMINOFORMATE
- ETHYL CARBAMATE
- ETHYL ESTER OF CARBAMIC ACID
- ETHYL URETHANE
- ETHYLURETHAN
- ETHYLURETHANE
- LEUCETHANE
- LEUCOTHANE
- NSC 746
- O-ETHYLURETHANE
- PRACARBAMIN
- PRACARBAMINE
- U-COMPOUND
- URETAN
- URETHAN
- URETHANE
- X 41