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MSDS for THIOUREA Page 1
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1 - PRODUCT IDENTIFICATION
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PRODUCT NAME: THIOUREA
FORMULA: NH2CSNH2
FORMULA WT: 76.12
CAS NO.: 00062-56-6
NIOSH/RTECS NO.: YU2800000
COMMON SYNONYMS: THIOCARBAMIDE; ISOTHIOUREA
PRODUCT CODES: 4123
EFFECTIVE: 09/11/86
REVISION #02
PRECAUTIONARY LABELLING
BAKER SAF-T-DATA(TM) SYSTEM
HEALTH - 3 SEVERE (CANCER CAUSING)
FLAMMABILITY - 1 SLIGHT
REACTIVITY - 1 SLIGHT
CONTACT - 1 SLIGHT
HAZARD RATINGS ARE 0 TO 4 (0 = NO HAZARD; 4 = EXTREME HAZARD).
LABORATORY PROTECTIVE EQUIPMENT
GOGGLES; LAB COAT; VENT HOOD; PROPER GLOVES
PRECAUTIONARY LABEL STATEMENTS
POISON DANGER
MAY BE FATAL IF SWALLOWED
NOTE: REPORTED AS CAUSING CANCER IN LABORATORY ANIMALS. EXERCISE DUE CARE.
DO NOT GET IN EYES, ON SKIN, ON CLOTHING.
DO NOT BREATHE DUST. KEEP IN TIGHTLY CLOSED CONTAINER. USE WITH ADEQUATE
VENTILATION. WASH THOROUGHLY AFTER HANDLING.
SAF-T-DATA(TM) STORAGE COLOR CODE: BLUE (HEALTH)
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2 - HAZARDOUS COMPONENTS
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COMPONENT % CAS NO.
THIOUREA 90-100 62-56-6
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3 - PHYSICAL DATA
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BOILING POINT: N/A VAPOR PRESSURE(MM HG): N/A
MELTING POINT: 177 C ( 351 F) VAPOR DENSITY(AIR=1): 2.6
SPECIFIC GRAVITY: 1.40 EVAPORATION RATE: N/A
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(H2O=1) (BUTYL ACETATE=1)
SOLUBILITY(H2O): MODERATE (1 TO 10 %) % VOLATILES BY VOLUME: N/A
APPEARANCE & ODOR: WHITE CRYSTALLINE SOLID.
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4 - FIRE AND EXPLOSION HAZARD DATA
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FLASH POINT (CLOSED CUP N/A
FLAMMABLE LIMITS: UPPER - N/A % LOWER - N/A %
FIRE EXTINGUISHING MEDIA
USE EXTINGUISHING MEDIA APPROPRIATE FOR SURROUNDING FIRE.
SPECIAL FIRE-FIGHTING PROCEDURES
FIREFIGHTERS SHOULD WEAR PROPER PROTECTIVE EQUIPMENT AND SELF-CONTAINED
BREATHING APPARATUS WITH FULL FACEPIECE OPERATED IN POSITIVE PRESSURE MODE.
TOXIC GASES PRODUCED
AMMONIA, SULFUR DIOXIDE
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5 - HEALTH HAZARD DATA
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THIS SUBSTANCE IS LISTED AS AN NTP ANTICIPATED HUMAN CARCINOGEN AND AS AN
IARC ANIMAL CARCINOGEN.
TOXICITY: LD50 (ORAL-RAT)(MG/KG) - 125
LD50 (IPR-RAT)(MG/KG) - 436
LD50 (ORAL-MOUSE)(MG/KG) - 8500
LD50 (IPR-MOUSE)(MG/KG) - 100
CARCINOGENICITY: NTP: YES IARC: YES Z LIST: NO OSHA REG: NO
EFFECTS OF OVEREXPOSURE
CONTACT WITH SKIN MAY CAUSE ULCERS, LOCAL DISCOLORATION, ECZEMA.
CHRONIC EFFECTS OF OVEREXPOSURE MAY CAUSE LIVER DAMAGE.
TARGET ORGANS
NONE IDENTIFIED
MEDICAL CONDITIONS GENERALLY AGGRAVATED BY EXPOSURE
NONE IDENTIFIED
ROUTES OF ENTRY
INHALATION, SKIN CONTACT, EYE CONTACT
EMERGENCY AND FIRST AID PROCEDURES
CALL A PHYSICIAN.
IF SWALLOWED, IF CONSCIOUS, IMMEDIATELY INDUCE VOMITING.
IF INHALED, REMOVE TO FRESH AIR. IF NOT BREATHING, GIVE ARTIFICIAL
RESPIRATION. IF BREATHING IS DIFFICULT, GIVE OXYGEN.
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IN CASE OF CONTACT, IMMEDIATELY FLUSH EYES WITH PLENTY OF WATER FOR AT
LEAST 15 MINUTES. FLUSH SKIN WITH WATER.
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6 - REACTIVITY DATA
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STABILITY: STABLE HAZARDOUS POLYMERIZATION: WILL NOT OCCUR
CONDITIONS TO AVOID: HEAT
DECOMPOSITION PRODUCTS: AMMONIA, OXIDES OF SULFUR
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7 - SPILL AND DISPOSAL PROCEDURES
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STEPS TO BE TAKEN IN THE EVENT OF A SPILL OR DISCHARGE
WEAR SELF-CONTAINED BREATHING APPARATUS AND FULL PROTECTIVE CLOTHING.
WITH CLEAN SHOVEL, CAREFULLY PLACE MATERIAL INTO CLEAN, DRY CONTAINER AND
COVER; REMOVE FROM AREA. FLUSH SPILL AREA WITH WATER.
DISPOSAL PROCEDURE
DISPOSE IN ACCORDANCE WITH ALL APPLICABLE FEDERAL, STATE, AND LOCAL
ENVIRONMENTAL REGULATIONS.
EPA HAZARDOUS WASTE NUMBER: U219 (TOXIC WASTE)
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8 - PROTECTIVE EQUIPMENT
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VENTILATION: USE ADEQUATE GENERAL OR LOCAL EXHAUST VENTILATION
TO KEEP FUME OR DUST LEVELS AS LOW AS POSSIBLE.
RESPIRATORY PROTECTION: A RESPIRATOR WITH DUST/MIST FILTER IS RECOMMENDED.
IF AIRBORNE CONCENTRATION EXCEEDS CAPACITY OF
RESPIRATOR, A SELF-CONTAINED BREATHING APPARATUS
IS ADVISED.
EYE/SKIN PROTECTION: SAFETY GOGGLES, UNIFORM, APRON, RUBBER GLOVES ARE
RECOMMENDED.
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9 - STORAGE AND HANDLING PRECAUTIONS
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SAF-T-DATA(TM) STORAGE COLOR CODE: BLUE (HEALTH)
SPECIAL PRECAUTIONS
KEEP CONTAINER TIGHTLY CLOSED. STORE IN SECURE POISON AREA.
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10 - TRANSPORTATION DATA AND ADDITIONAL INFORMATION
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DOMESTIC (D.O.T.)
PROPER SHIPPING NAME POISON B SOLID, N.O.S. (THIOUREA)
HAZARD CLASS POISON B
UN/NA UN2811
LABELS POISON
REPORTABLE QUANTITY 1 LBS.
INTERNATIONAL (I.M.O.)
PROPER SHIPPING NAME THIOUREA
HAZARD CLASS 6.1
UN/NA UN2877
LABELS HARMFUL - STOW AWAY FROM FOOD STUFFS
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