Urea – Ultra LBU TM: Product Identification

SYNONYMS:

Urea, 46-0-0,  Carbamide; Carbonyldiamide; Aquadrate;  Ureaphil; Ureophil

CHEMICAL FAMILY:

Amide

CHEMICAL I.D. N.O.:

STCC #2818170

CHEMICAL FORMULA:

CO(NH2)2

DOT HAZARD CLASS:

None

LABEL REQUIRED:

None

INGREDIENTS

CAS
NUMBER

Wt%

OSHA
PEL¹

ACGIH STEL²

NIOSH
IDLH³

ACGIH TLV⁴

UNITS

UREA

57-13-6

99.0%

N.A.

N.A.

N.A.

15

mg/m³

Biuret

108-19-0

< 0.1%

N.A.

N.A.

N.A.

N.A.

ppm

2 = Short Term Exposure Limit (15 Minute Exposure).    

3 = Immediately Dangerous to Life and Health.

4 = 15 mg/m³ Total Nuisance Dust (8-Hr. Time Weighted Average).

N.A. = Not Available                                                  

Urea – Ultra LBU TM: NFPA Code         

1

HEALTH HAZARD (Blue):
Can cause irritation if not treated.

0             

FLAMMABILITY HAZARD (Red):
Will not burn.

0             

REACTIVITY HAZARD (Yellow):
Normally stable. Not reactive with water.

NONE

SPECIAL NOTICE (White):
None

Urea – Ultra LBU TM: Physical and Chemical Properties    

MELTING POINT:

271^°F

275^°F

NITROGEN CONTENT:

46.65% (Pure)

SOLUBILITY IN H20:

112.4g/100g

WEIGHT:

pH:

8.5-9.5

ODOR:

Slight Ammonia Odor

Urea – Ultra LBU TM: Fire and Explosion Data

FLASH POINT:

N.A.

FLAMMABLE LIMIT
In AIR %/VOL:

Lower: N.A., Upper: N.A.

AUTOIGNITION
TEMPERATURE:

N.A.

EXTINGUISHING
MEDIA:

N.A. (Not Available)

Firefighters should wear self-contained breathing apparatus and full protective clothing.

UNUSUAL FIRE OR
EXPLOSION DATA:

Urea solid will not burn or support combustion, but will decompose into noxious, poisonous gase when exposed to the high temperatures of a fire.

Urea – Ultra LBU TM: Reactivity Data

STABILITY:

Stable at room temperature, decomposes at high temperature. Can be made explosive when dissolved in Nitric Acid, even without completely drying.

HAZARDOUS
POLYMERIZATION:

Will not occur.

CONDITIONS TO
AVOID/
INCOMPATIBILITY

Nitric Acid, gallium, perchlorate, strong oxidizing agents, caustics and alkalis.

Urea – Ultra LBU TM: Health Hazard Data       

Urea Feed

Biuret

IARC MONOGRAPHS:

OSHA REGULATED:

NO

NO

OCCUPATIONAL
EXPOSURE LIMITS:

NIOSH IMMEDIATELY DANGEROUS TO LIFE AND HEALTH (IDLH):

Urea = None Established                  Biuret = None Established

ACGIH TRESHOLD LIMIT VALUE (TLV)

Urea = 15 mg/m³  Total Nuisance Dust (8 Hr. Time Weighted Average).

EFFECTS OF
OVEREXPOSURE:

ACUTE:

SKIN:

Frequent or prolonged contact with dust may aggravate preexisting dermatitis and possibly promote an allergic reaction.

INHALATION:

Excessive inhalation of the dust may cause sore throat, coughing and irritation of mucous membranes and the respiratory tract.

INGESTION:

Abdominal pain, nausea, vomiting and gastrointestinal irritation may result. ( Urea is a protein to ruminants, animals with the enzyme Urease in their digestive systems, but is toxic to humans)

EFFECTS OF
OVER EXPOSURE:

CHRONIC:

None known for Urea

Immediately flush with large amounts of water, including under the eyelids. If pain persists seek medical attention, preferably an Ophthalmologist. Speed and thoroughness in rinsing eyes are important to avoid permanent injury.

SKIN CONTACT:

Immediately remove contaminated clothing and shoes. Wash the affected area with soap and flush with large amounts of water. Seek medical attention if irritation develops.

INHALATION:

Remove to fresh air. If breathing has stopped, apply artificial respiration. Keep warm and at rest. Get immediate medical attention.

INGESTION:

Do not induce vomiting. If vomiting occurs, keep head below hips to help prevent aspiration. Get immediate medical attention.

EYE PROTECTION:

Urea is water soluble and will dissolve with mucosal membrane contact (eyes). Remove contact lenses and wear safety glasses, chemical goggles or face shield where contact with dust or micro particles may occur.

SKIN PROTECTION:

Urea is water soluble and will dissolve with perspiration contact. Wearing of appropriate protective clothing and gloves is suggested if epidermal sensitivity develops.

INHALATION:

Urea is water soluble and will dissolve with mucosal membrane contact (lungs).  Use approved respiratory protective equipment for cleaning large spills or upon entry into large tanks, vessels, and other designated confined space areas or in any situations where airborne concentrations may exceed occupational exposure limits (15 mg/m³).

VENTILATION:

Provide adequate general and local exhaust ventilation to avoid reaching occupational exposure limits, particularly in a confined space area.

ACUTE

CHRONIC

FIRE

PRESSURE

REACTIVE

X

INGREDIENT

CAS NO.

% / wt.

SEC. 313

Sec. 302

RQ lb.

TPQ lb.

N/A

Sec. 302 =

Extremely Hazardous Substances (EHS), Section 302

TPQ =

Threshold Planning Quantity of EHS

This information relates only to the specific material designated and may not be valid for such material used in combination with any other materials or in any process.  Such information is to the best of this company's knowledge and believed accurate and reliable as of the date indicated.  However, no representation, warranty or guarantee is made as to the accuracy, reliability or completeness.  It is the user's responsibility to satisfy himself as to the suitableness and completeness of such information for his own particular use.

HAROLD NELSON, M.S.

Environmental Engineer/Risk Manager

12/17/98