------------------------------------------------------------------------------ MSDS for THIOSEMICARBAZIDE Page 1 ------------------------------------------------------------------------------ ------------------------------------------------------------------------------ 1 - PRODUCT IDENTIFICATION ------------------------------------------------------------------------------ PRODUCT NAME: THIOSEMICARBAZIDE FORMULA: NH2CSNHNH2 FORMULA WT: 91.14 CAS NO.: 00079-19-6 NIOSH/RTECS NO.: VT4200000 COMMON SYNONYMS: N-AMINOTHIOUREA; THIOCARBAMYLHYDRAZINE; HYDRAZINECARBOTHIOAMIDE PRODUCT CODES: V834 EFFECTIVE: 11/26/86 REVISION #02 PRECAUTIONARY LABELLING BAKER SAF-T-DATA(TM) SYSTEM HEALTH - 3 SEVERE (POISON) 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 CAUSES IRRITATION MAY BE FATAL IF SWALLOWED DO NOT GET IN EYES, ON SKIN, ON CLOTHING. KEEP IN TIGHTLY CLOSED CONTAINER. WASH THOROUGHLY AFTER HANDLING. SAF-T-DATA(TM) STORAGE COLOR CODE: BLUE (HEALTH) ------------------------------------------------------------------------------ 2 - HAZARDOUS COMPONENTS ------------------------------------------------------------------------------ COMPONENT % CAS NO. THIOSEMICARBAZIDE 90-100 79-19-6 ------------------------------------------------------------------------------ 3 - PHYSICAL DATA ------------------------------------------------------------------------------ BOILING POINT: N/A VAPOR PRESSURE(MM HG): N/A MELTING POINT: 183 C ( 361 F) VAPOR DENSITY(AIR=1): N/A SPECIFIC GRAVITY: N/A EVAPORATION RATE: N/A ------------------------------------------------------------------------------ MSDS for THIOSEMICARBAZIDE Page 2 ------------------------------------------------------------------------------ (H2O=1) (BUTYL ACETATE=1) SOLUBILITY(H2O): MODERATE (1 TO 10 %) % VOLATILES BY VOLUME: 0 APPEARANCE & ODOR: WHITE, ODORLESS, CRYSTALLINE SOLID. ------------------------------------------------------------------------------ 4 - FIRE AND EXPLOSION HAZARD DATA ------------------------------------------------------------------------------ FLASH POINT (CLOSED CUP N/A NFPA 704M RATING: 4-1-0 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 NITROGEN OXIDES, SULFUR DIOXIDE ------------------------------------------------------------------------------ 5 - HEALTH HAZARD DATA ------------------------------------------------------------------------------ TOXICITY: LD50 (ORAL-RAT)(MG/KG) - 9.16 LD50 (IPR-MOUSE)(MG/KG) - 1 LD50 (IV-MOUSE) (MG/KG) - 13 LD50 (IPR-GUINEA PIG) (MG/KG) - 24 CARCINOGENICITY: NTP: NO IARC: NO Z LIST: NO OSHA REG: NO EFFECTS OF OVEREXPOSURE CONTACT WITH SKIN OR EYES MAY CAUSE IRRITATION. ALLERGIC REACTION MAY DEVELOP. INGESTION MAY CAUSE NAUSEA, VOMITING, HEADACHES, DIZZINESS, GASTROINTESTINAL IRRITATION. CHRONIC EFFECTS OF OVEREXPOSURE MAY CAUSE BLOOD OR LIVER DAMAGE. TARGET ORGANS EYES, SKIN MEDICAL CONDITIONS GENERALLY AGGRAVATED BY EXPOSURE NONE IDENTIFIED ROUTES OF ENTRY EYE CONTACT, SKIN CONTACT, INGESTION EMERGENCY AND FIRST AID PROCEDURES CALL A PHYSICIAN. ------------------------------------------------------------------------------ MSDS for THIOSEMICARBAZIDE Page 3 ------------------------------------------------------------------------------ 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. IN CASE OF CONTACT, IMMEDIATELY FLUSH EYES WITH PLENTY OF WATER FOR AT LEAST 15 MINUTES. FLUSH SKIN WITH WATER. ------------------------------------------------------------------------------ 6 - REACTIVITY DATA ------------------------------------------------------------------------------ STABILITY: STABLE HAZARDOUS POLYMERIZATION: WILL NOT OCCUR CONDITIONS TO AVOID: HEAT DECOMPOSITION PRODUCTS: OXIDES OF NITROGEN, OXIDES OF SULFUR ------------------------------------------------------------------------------ 7 - SPILL AND DISPOSAL PROCEDURES ------------------------------------------------------------------------------ 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: P116 (ACUTE HAZARDOUS WASTE) ------------------------------------------------------------------------------ 8 - PROTECTIVE EQUIPMENT ------------------------------------------------------------------------------ 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. ------------------------------------------------------------------------------ 9 - STORAGE AND HANDLING PRECAUTIONS ------------------------------------------------------------------------------ SAF-T-DATA(TM) STORAGE COLOR CODE: BLUE (HEALTH) SPECIAL PRECAUTIONS KEEP CONTAINER TIGHTLY CLOSED. STORE IN SECURE POISON AREA. ------------------------------------------------------------------------------ 10 - TRANSPORTATION DATA AND ADDITIONAL INFORMATION ------------------------------------------------------------------------------ ------------------------------------------------------------------------------ MSDS for THIOSEMICARBAZIDE Page 4 ------------------------------------------------------------------------------ DOMESTIC (D.O.T.) PROPER SHIPPING NAME THIOSEMICARBAZIDE HAZARD CLASS POISON B UN/NA NA9250 LABELS POISON REPORTABLE QUANTITY 100 LBS. INTERNATIONAL (I.M.O.) PROPER SHIPPING NAME POISONOUS SOLIDS, N.O.S. (THIOSEMICARBAZIDE) HAZARD CLASS 6.1 UN/NA UN2811 LABELS POISON