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1,4-benzoquinone 106-51-4 MSDS
Name: p-Quinone Material Safety Data Sheet
Synonym: p-Benzoquinone; 2,4-cyclohexadiene-1,4-dione; Quinon
CAS: 106-51-4
Section 1 - Chemical Product   MSDS Name:p-Quinone Material Safety Data Sheet
Synonym:p-Benzoquinone; 2,4-cyclohexadiene-1,4-dione; Quinon

Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS
CAS# Chemical Name content EINECS#
106-51-4 Quinone 100 203-405-2
Hazard Symbols: T N
Risk Phrases: 23/25 36/37/38 50

Section 3 - HAZARDS IDENTIFICATION
  EMERGENCY OVERVIEW
Toxic by inhalation and if swallowed. Irritating to eyes, respiratory system and skin. Very toxic to aquatic organisms.
Potential Health Effects
Eye:
Causes severe eye burns. Contact may cause discoloration, redness, swelling, and formation of eye lesions. May cause corneal edema, ulceration, and scarring. Prolonged exposure to vapor can lead to gradual deposition of pigment in the cornea and conjunctiva which may result in severe visual disturbances. Causes small opacities of the cornea and structural corneal changes that result in loss of visual activity.
Skin:
Causes skin irritation. Depigmentation and skin lesions may occur.
May cause discoloration, erythema (redness), swelling, and the formation of papules and vesicles (blisters). Prolonged contact may lead to necrosis.
Ingestion:
Harmful if swallowed. May cause irritation of the digestive tract.
Ingestion may cause convulsions, seizures and possible coma.
Inhalation:
Causes respiratory tract irritation. May cause adverse central nervous system effects including headache, convulsions, and possible death. May produce asphyxia due to pulmonary damage and effects on the hemoglobin. May produce clonic convulsions, respiratory difficulties, decreased blood pressure and death due to medullary centers.
Chronic:
Prolonged or repeated exposure may cause permanent eye damage.

Section 4 - FIRST AID MEASURES
  Eyes: Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately. Do NOT allow victim to rub eyes or keep eyes closed.
Skin:
Get medical aid. Flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse.
Ingestion:
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 immediately.
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:
Antidote: None reported.

Section 5 - FIRE FIGHTING MEASURES
  General Information:
As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Dusts at sufficient concentrations can form explosive mixtures with air.
Extinguishing Media:
In case of fire, use water, dry chemical, chemical foam, or alcohol-resistant foam.

Section 6 - ACCIDENTAL RELEASE MEASURES
  General Information: Use proper personal protective equipment as indicated in Section 8.
Spills/Leaks:
Sweep up, then place into a suitable container for disposal. Avoid generating dusty conditions. Remove all sources of ignition. Provide ventilation.

Section 7 - HANDLING and STORAGE
  Handling:
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use only in a well-ventilated area. Minimize dust generation and accumulation. May form flammable dust-air mixtures.
Do not get in eyes, on skin, or on clothing. Keep container tightly closed. Do not ingest or inhale.
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:
Use adequate general or local exhaust ventilation to keep airborne concentrations below the permissible exposure limits.
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:
Follow the OSHA respirator regulations found in 29 CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.

Section 9 - PHYSICAL AND CHEMICAL PROPERTIES
 
Physical State: Solid
Color: yellow or green
Odor: chlorine-like
pH: Not available.
Vapor Pressure: Negligible
Viscosity: Not available.
Boiling Point: Not available.
Freezing/Melting Point: 113 - 115 C
Autoignition Temperature: 815 deg F ( 435.00 deg C)
Flash Point: 100-200F
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Decomposition Temperature: Not available.
Solubility in water: Slightly soluble in water.
Specific Gravity/Density: 1.3180
Molecular Formula: C6H4O2
Molecular Weight: 108.0268

Section 10 - STABILITY AND REACTIVITY
  Chemical Stability:
Stable under normal temperatures and pressures.
Conditions to Avoid:
High temperatures, incompatible materials.
Incompatibilities with Other Materials:
Oxidizing agents. Attacks some forms of coatings, plastics and rubber.
Hazardous Decomposition Products:
Carbon monoxide, carbon dioxide.
Hazardous Polymerization: Will not occur.

Section 11 - TOXICOLOGICAL INFORMATION
  RTECS#:
CAS# 106-51-4: DK2625000 LD50/LC50:
CAS# 106-51-4: Oral, mouse: LD50 = 25 mg/kg; Oral, rat: LD50 = 130 mg/kg.
Carcinogenicity:
Quinone - Not listed by ACGIH, IARC, or NTP.
Other:
See actual entry in RTECS for complete information.

Section 12 - ECOLOGICAL INFORMATION
  Ecotoxicity:
Fish: Rainbow trout: LC50 = 0.125 mg/L; 96 Hr.; UnspecifiedFish: Fathead Minnow: LC50 = 0.045 mg/L; 96 Hr.; UnspecifiedBacteria: Phytobacterium phosphoreum: EC50 =2.09 mg/L; 5-30 minutes; Microtox test

Section 13 - DISPOSAL CONSIDERATIONS
  Products which are considered hazardous for supply are classified as Special Waste and the disposal of such chemicals is covered by regulations which may vary according to location. Contact a specialist disposal company or the local waste regulator for advice. Empty containers must be decontaminated before returning for recycling.

Section 14 - TRANSPORT INFORMATION
 
IATA
Shipping Name: BENZOQUINONE
Hazard Class: 6.1
UN Number: 2587
Packing Group: II
IMO
Shipping Name: BENZOQUINONE
Hazard Class: 6.1
UN Number: 2587
Packing Group: II
RID/ADR
Shipping Name: BENZOQUINONE
Hazard Class: 6.1
UN Number: 2587
Packing group: II
USA RQ:CAS# 106-51-4: 10 lb final RQ; 4.54 kg final RQ

Section 15 - REGULATORY INFORMATION
 
European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: T N
Risk Phrases:
R 23/25 Toxic by inhalation and if swallowed.
R 36/37/38 Irritating to eyes, respiratory system
and skin.
R 50 Very toxic to aquatic organisms.
Safety Phrases:
S 26 In case of contact with eyes, rinse immediately
with plenty of water and seek medical advice.
S 28 After contact with skin, wash immediately
with...
S 45 In case of accident or if you feel unwell, seek
medical advice immediately (show the label where
possible).
S 61 Avoid release to the environment. Refer to
special instructions/safety data sheets.
WGK (Water Danger/Protection)
CAS# 106-51-4: 2
United Kingdom Occupational Exposure Limits
CAS# 106-51-4: OES-United Kingdom, TWA 0.1 ppm TWA; 0.45 mg/m3 TWA
CAS# 106-51-4: OES-United Kingdom, STEL 0.3 ppm STEL; 1.3 mg/m3 STEL
United Kingdom Maximum Exposure Limits
Canada
CAS# 106-51-4 is listed on Canada's DSL List.
CAS# 106-51-4 is listed on Canada's Ingredient Disclosure List.
Exposure Limits
CAS# 106-51-4: OEL-ARAB Republic of Egypt:TWA 0.1 ppm (0.4 mg/m3)
OEL-AUSTRALIA:TWA 0.1 ppm (0.4 mg/m3)
OEL-AUSTRIA:TWA 0.1 ppm (0.4 mg/m3)
OEL-BELGIUM:TWA 0.1 ppm (0.44 mg/m3)
OEL-DENMARK:TWA 0.1 ppm (0.4 mg/m3)
OEL-FINLAND:TWA 0.1 ppm (0.4 mg/m3);STEL 0.3 ppm;Skin
OEL-FRANCE:TWA 0.1 ppm (0.4 mg/m3);STEL 0.3 ppm (1.5 mg/m3)
OEL-GERMANY:TWA 0.1 ppm (0.4 mg/m3)
OEL-THE NETHERLANDS:TWA 0.1 ppm (0.4 mg/m3)
OEL-THE PHILIPPINES:TWA 5 ppm (15 mg/m3)
OEL-RUSSIA:STEL 0.05 mg/m3
OEL-SWEDEN:TWA 0.1 ppm (0.4 mg/m3);STEL 0.3 ppm (1.3 mg/m3)
OEL-SWITZERLAND:TWA 0.1 ppm (0.4 mg/m3);STEL 0.2 ppm (0.8 mg/m3)
OEL-TURKEY:TWA 0.1 ppm (0.4 mg/m3)
OEL-UNITED KINGDOM:TWA 0.1 ppm (0.4 mg/m3);STEL 0.3 ppm
OEL IN BULGARIA, COLOMBIA, JORDAN, KOREA check ACGIH TLV
OEL IN NEW ZEALAND, SINGAPORE, VIETNAM check ACGI TLV
US FEDERAL
TSCA
CAS# 106-51-4 is listed on the TSCA inventory.


SECTION 16 - ADDITIONAL INFORMATION
N/A

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