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MSDS 
:
 Urea
CAS 
:
 57-13-6
SYNONYMS 
:
 Carbamide resin; Carbamimidic acid; Carbonyl diamide;     Carbonyldiamine;Isourea
**** SECTION 2 - COMPOSITION, INFORMATION ON INGREDIENTS ****

+----------------+--------------------------------------+----------+-----------+
| CAS# | Chemical Name | % | EINECS# |
|----------------|--------------------------------------|----------|-----------|
| 57-13-6 |Urea | ca. 100 | 200-315-5 |
+----------------+--------------------------------------+----------+-----------+
Hazard Symbols: None Listed.
Risk Phrases: None Listed.

**** SECTION 3 - HAZARDS IDENTIFICATION ****

EMERGENCY OVERVIEW
Not available.

Potential Health Effects
Eye:
Causes eye irritation.
Skin:
Causes skin irritation.
Ingestion:
Causes gastrointestinal irritation with nausea, vomiting and
diarrhea. May cause cardiac disturbances. May cause disturbed blood
electrolyte balance.
Inhalation:
Inhalation of dust causes irritation of the nose and throat,
coughing and sneezing.
Chronic:
Prolonged or repeated exposure may cause adverse reproductive
effects. Laboratory experiments have resulted in mutagenic effects.
Prolonged exposure or exposure to high concentrations may cause eye
damage.

**** SECTION 4 - FIRST AID MEASURES ****

Eyes:
Immediately flush eyes with plenty of water for at least 15 minutes,
occasionally lifting the upper and lower eyelids. Get medical aid.
Skin:
Get medical aid. Immediately flush skin with plenty of water for at
least 15 minutes while removing contaminated clothing and shoes.
Wash clothing before reuse.
Ingestion:
Do not induce vomiting. If victim is conscious and alert, give 2-4
cupfuls of milk or water. Never give anything by mouth to an
unconscious person. Get medical aid.
Inhalation:
Remove from exposure and move to fresh air immediately. If not
breathing, give artificial respiration. If breathing is difficult,
give oxygen. Get medical aid.
Notes to Physician:
Treat symptomatically and supportively. Weak acids such as acetic
acid and propionic acid can be used as chemical antidotes,
demulcents and stimulants.

**** SECTION 5 - FIRE FIGHTING MEASURES ****

General Information:
During a fire, irritating and highly toxic gases may be generated by
thermal decomposition or combustion. Wear appropriate protective
clothing to prevent contact with skin and eyes. Wear a
self-contained breathing apparatus (SCBA) to prevent contact with
thermal decomposition products.
Extinguishing Media:
Substance is noncombustible; use agent most appropriate to
extinguish surrounding fire. Use water spray, dry chemical, carbon
dioxide, or appropriate foam.

**** SECTION 6 - ACCIDENTAL RELEASE MEASURES ****

General Information: Use proper personal protective equipment as indicated
in Section 8.
Spills/Leaks:
Vacuum or sweep up material and place into a suitable disposal
container. Clean up spills immediately, observing precautions in the
Protective Equipment section. Avoid generating dusty conditions.
Provide ventilation.

**** SECTION 7 - HANDLING and STORAGE ****

Handling:
Wash thoroughly after handling. Remove contaminated clothing and
wash before reuse. Use with adequate ventilation. Minimize dust
generation and accumulation. Avoid breathing dust, vapor, mist, or
gas. Avoid contact with eyes, skin, and clothing. Keep container
tightly closed. Avoid ingestion and inhalation.
Storage:
Store in a tightly closed container. Store in a cool, dry,
well-ventilated area away from incompatible substances.

**** SECTION 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION ****

Engineering Controls:
Facilities storing or utilizing this material should be equipped
with an eyewash facility and a safety shower. Use adequate
ventilation to keep airborne concentrations low.
Exposure Limits
CAS# 57-13-6:

Russia: 10 mg/m3 TWA

Personal Protective Equipment

Eyes:
Wear appropriate protective eyeglasses or chemical
safety goggles as described by OSHA's eye and face
protection regulations in 29 CFR 1910.133 or European
Standard EN166.
Skin:
Wear appropriate protective gloves to prevent skin
exposure.
Clothing:
Wear appropriate protective clothing to prevent skin
exposure.
Respirators:
A respiratory protection program that meets OSHA's 29
CFR 1910.134 and ANSI Z88.2 requirements or European
Standard EN 149 must be followed whenever workplace
conditions warrant respirator use.

**** SECTION 9 - PHYSICAL AND CHEMICAL PROPERTIES ****

Physical State: Crystals
Color: white
Odor: ammonia-like
pH: 7.2 (10% solution)
Vapor Pressure: 1.2105 mm Hg @ 25C
Viscosity: Not available.
Boiling Point: decomposes
Freezing/Melting Point: 132 deg C
Autoignition Temperature: Not applicable.
Flash Point: Not applicable.
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Decomposition Temperature: Not available.
Solubility in water: Soluble.
Specific Gravity/Density: 1.335
Molecular Formula: CH4N2O
Molecular Weight: 60.0408

**** SECTION 10 - STABILITY AND REACTIVITY ****

Chemical Stability:
Stable under normal temperatures and pressures.
Conditions to Avoid:
Incompatible materials, dust generation, excess heat.
Incompatibilities with Other Materials:
Strong oxidizing agents, sodium hypochlorite, sodium nitrate, calcium
hypochlorite, nitrosyl perchlorate, gallium perchlorate, diphosphorus
pentachloride.
Hazardous Decomposition Products:
Carbon monoxide, oxides of nitrogen, irritating and toxic fumes and
gases, carbon dioxide.
Hazardous Polymerization: Has not been reported.

**** SECTION 11 - TOXICOLOGICAL INFORMATION ****

RTECS#:
CAS# 57-13-6: YR6250000
LD50/LC50:
CAS# 57-13-6: Oral, mouse: LD50 = 11 gm/kg; Oral, rat: LD50 = 8471
mg/kg.
Carcinogenicity:
Urea -
Not listed by ACGIH, IARC, or NTP.
Other:
See actual entry in RTECS for complete information.

**** SECTION 12 - ECOLOGICAL INFORMATION ****

Ecotoxicity:
Bacteria: Phytobacterium phosphoreum: EC50 = 23914 mg/L; 5 min;
Microtox testIf released to water, urea can degrade readily through
biotic hydrolysis as demonstrated by various screening studies. The
presence of naturally-occurring phytoplankton increases the
degradation rate
because phytoplankton use urea as a nitrogen source
and because urea is
decomposed by phytoplankton photosynthesis. In
phytoplankton-rich waters, degradation occurs much faster in sunlight
than in the dark. Abiotic
hydrolysis of urea occurs very slowly in
relation to biotic hydrolysis.

**** SECTION 13 - DISPOSAL CONSIDERATIONS ****

Dispose of in a manner consistent with federal, state, and local regulations.

**** SECTION 14 - TRANSPORT INFORMATION ****

IATA
Not regulated as a hazardous material.
IMO
Not regulated as a hazardous material.
RID/ADR
Not regulated as a hazardous material.

**** SECTION 15 - REGULATORY INFORMATION ****

European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: Not available.
Risk Phrases:
Safety Phrases:
WGK (Water Danger/Protection)
CAS# 57-13-6: 1
Canada
CAS# 57-13-6 is listed on Canada's DSL List.
CAS# 57-13-6 is not listed on Canada's Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 57-13-6 is listed on the TSCA inventory.

**** SECTION 16 - ADDITIONAL INFORMATION ****

MSDS Creation Date: 5/28/1999 Revision #2 Date: 3/18/2003

The information above is believed to be accurate and represents the best
information currently available to us. However, we make no warranty of
merchantability or any other warranty, express or implied, with respect to
such information, and we assume no liability resulting from its use. Users
should make their own investigations to determine the suitability of the
information for their particular purposes. In no way shall the company be
liable for any claims, losses, or damages of any third party or for lost
profits or any special, indirect, incidental, consequential or exemplary
damages, howsoever arising, even if the company has been advised of
the possibility of such damages.
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