Product ID:PYROCATECHOL
MSDS Date:11/09/1992
FSC:6810
NIIN:00-246-6276
MSDS Number: BTCHW

MALLINCKRODT INC. SCIENCE PRODUCTS DIV.

PARIS, KY 40362
US

Emergency Phone: 314-539-1600

Info Phone: 314-539-1600

Cage: 62910

MALLINCKRODT SPECIALTY CHEMICALS CO

PHILLIPSBURG, NJ 08865 US

Telephone: 908-859-2151

Cage: 62910

CATECHOL; PYROCATECHOL

CAS: 120-80-9

RTECS: DJ3450000

OSHA PEL 5 PPM

ACGIH TLV: 2320 MG/CUM

EPA Report Quantity: 1 LB

DOT Report Quantity: 1 LB

LD50 LC50 Mixture:ORAL LD50 (RAT): 260 MG/KG
Routes of Entry: Inhalation:YES Skin:YES Ingestion:YES
Reports of Carcinogenicity:NTP:NO IARC:NO OSHA:NO
Health Hazards Acute and Chronic:INHALATION: DIGESTIVE DISTURBANCES.
INGESTION: POISONOUS. POSSIBLY DEATH. SKIN: CORROSIVE. ABSORPTION
W/SYSTEMIC POISONING EFFECTS TO FOLLOW. DISCOLORATION & SEVERE
BURNS. EYES: CORROSIVE. SEVERE DAMA GE & BLINDNESS. REPEATED
EXPOSURE MAY CAUSE LIVER, KIDNEY & NEUROLOGICAL DISORDERS.
Explanation of Carcinogenicity:NONE
Effects of Overexposure:INHALATION: VOMITING, DIFFICULT IN SWALLOWING,
DIARRHEA, LOSS OF APPETITE. INGESTION: BURNING PAIN IN MOUTH &
THROAT, ABDOMINAL PAIN, HEADACHE, DIZZINESS, MUSCULAR WEAKNESS,
IRREGULAR BREATHING, COMA & POSSIBLY DEATH. SKIN: DISCOLORATION
&SEVERE BURNS. EYES: REDNESS, PAIN, BLURRED VISION.
Medical Cond Aggravated by Exposure:PRE-EXISTING SKIN DISORDERS OR EYE
PROBLEMS OR IMPAIRED LIVER OR KIDNEY FUNCTION.

First Aid:INHALATION: REMOVE TO FRESH AIR. GIVE CPR/OXYGEN IF
NECESSARY. INGESTION: INDUCE VOMITING IMMEDIATELY BY GIVING 2
GLASSES OF WATER & STICKING FINGER DOWN THROAT. NEVER GIVE ANYTHING
BY MOUTH TO AN UNC ONSCIOUS PERSON. SKIN: FLUSH W/PLENTY OF WATER
FOR AT LEAST 15 MINS WHILE REMOVING CONTAMINATED CLOTHING & SHOES.
EYES: WASH W/PLENTY OF WATER FOR AT LEAST 15 MINS. OBTAIN MED ATTN
IN ALL CASES.

Flash Point:137C/279F
Extinguishing Media:WATER SPRAY, DRY CHEMICAL, ALCOHOL FOAM OR CO2
Fire Fighting Procedures:WEAR FULL PROTECTIVE CLOTHING & NIOSH APPROVED
SCBA W/FULL FACEPIECE OPERATED IN THE PRESSURE DEMAND OR OTHER
POSITIVE PRESSURE MODE.
Unusual Fire/Explosion Hazard:FINE DUST DISPERSED IN AIR IN SUFFICIENT
CONCENTRATIONS & IN THE PRESENCE OF AN IGNITION SOURCE IS A
POTENTIAL DUST EXPLOSION.

Spill Release Procedures:REMOVE IGNITION SOURCES. VENTILATE AREA. WEAR
PROTECTIVE EQUIPMENT. CLEAN UP IN A MANNER THAT DOES NOT DISPERSE
DUST INTO THE AIR. USE NON-SPARKING TOOLS. PICK UP SPILL FOR
RECOVERY OR DISPOSAL & PLAC E IN A CLOSED CONTAINER.

Handling and Storage Precautions:KEEP IN A TIGHTLY CLOSED CONTAINER.
STORE IN A COOL, DRY, VENTILATED AREA. PROTECT AGAINST PHYSICAL
DAMAGE. ISOLATE FROM INCOMPATIBLE SUBSTANCES.
Other Precautions:AVOID CONTACT W/EYES, SKIN, CLOTHING & BREATHING OF
DUST. USE W/ADEQUATE VENTILATION. DON'T WEAR CONTACT LENSES WHEN
WORKING W/THIS MATERIAL.

Respiratory Protection:IF THE TLV IS EXCEEDED, USE A NIOSH APPROVED
DUST/MIST RESPIRATOR. ALTERNATIVELY, A SUPPLIED AIR FULL FACEPIECE
RESPIRATOR OR AIRLINED HOOD MAY BE WORN.
Ventilation:LOCAL &/OR GENERAL EXHAUST TO KEEP BELOW TLV.
Protective Gloves:IMPERVIOUS
Eye Protection:CHEMICAL SAFETY GOGGLES/FULL FACE SHIELD
Other Protective Equipment:BOOTS, LAB COAT, APRON, COVERALLS, EYE WASH
FOUNTAIN & QUICK DRENCH FACILITIES IN WORK AREA.
Work Hygienic Practices:REMOVE/LAUNDER CONTAMINATED CLOTHING BEFORE
REUSE. WASH THOROUGHLY AFTER HANDLING.
Supplemental Safety and Health

Boiling Pt:B.P. Text:245C (473F)
Melt/Freeze Pt:M.P/F.P Text:219-223F
Vapor Pres:10
Vapor Density:3.79
Spec Gravity:1.344
Solubility in Water:COMPLETE
Appearance and Odor:COLORLESS CRYSTALS W/FAINT CHARACTERISTIC ODOR.

Stability Indicator/Materials to Avoid:YES
ACID CHLORIDES, ACID ANHYDRIDES, BASES, OXIDIZING AGENTS.
Stability Condition to Avoid:ELEVATED TEMPS OR OTHER SOURCES OF
IGNITION, AIR, LIGHT
Hazardous Decomposition Products:CO2 & CO

Waste Disposal Methods:WHATEVER CANNOT BE SAVED FOR RECOVERY MAY BE
BURNED IN AN APPROVED INCINERATOR OR DISPOSED OF IN AN APPROVED
WASTE FACILITY. REPORTABLE QUANTITY: 1 LB. DISPOSE OF IN ACCORDANCE
W/LOCAL, STATE & FEDERA L REGULATIONS.

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This information is formulated for use by elements of the Department
of Defense. The United States of America in no manner whatsoever,
expressly or implied, warrants this information to be accurate and
disclaims all liability for its use. Any person utilizing this
document should seek competent professional advice to verify and
assume responsibility for the suitability of this information to their
particular situation.