Material Safety Data Sheet
Acenaphthene
Section 1 - Chemical Product and Company Identification
MSDS Name: Acenaphthene 
Catalog Numbers:SC-45509

Section 2 - Composition, Information on Ingredients 
CAS#83-32-9
Chemical Name: Acenaphthene
Percent  99%
EINECS/ELINCS:201-469-6
Hazard Symbols: Xi,N
Risk Phrases: 36/37/38-50/53

Section 3 - Hazards Identification 
EMERGENCY OVERVIEW
Harmful if swallowed. Irritate to eyes, respiratory system and skin.

Potential Health Effects
Inhalation: Cause respiratory tract irritation.
Skin: Cause skin irritation.
Eyes:Cause eye irritation
Ingestion: Cause irritation of the digestive tract. The toxicological properties of this substance have not been fully investigated.
Chronic:

Section 4 - First Aid Measures
Ingestion: Never give anything by mouth to an unconscious person. Get medical aid. Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water.
Eyes: Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.
Skin: Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse.
Inhalation: Remove from exposure and move to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen.
Notes to Physician:

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.
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:Vacuum or sweep up material and place into a suitable disposal container.

Section 7 - Handling and Storage 
Handling: Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation. Use with adequate ventilation. Store protected from light. Wash clothing before reuse.
Storage: Store in cool place. Keep container tightly closed in a dry and well-ventilated place.

Section 8 - Exposure Controls, Personal Protection 
Engineering Controls: Use adequate general or local exhaust ventilation to keep airborne concentrations below the permissible exposure limits. Use process enclosure, local exhaust ventilation, or other engineering controls to control airborne levels.

Personal Protective Equipment
Eyes: Wear appropriate protective eyeglasses.
Skin: Wear safety chemical goggles if splashing is possible.
Clothing: Wear appropriate protective clothing to minimize contact with skin.
Respirators: Wear a NIOSH/MSHA or European Standard EN 149 approved full-facepiece airline respirator in the positive pressure mode with emergency escape provisions.

Section 9 - Physical and Chemical Properties 
Physical State: crystalline
 Color: brown-beige
Odor: Not available.
pH: Not available.
Vapor Pressure: 13,3 hPa at 131,0 °C
Viscosity: Not available.
Boiling Point: 279 °C(lit.)
Melting point: 90-94 °C(lit.)
Autoignition Temperature: Not available
Flash Point: 125,0 °C - closed cup
Explosion Limits: Not available.
Explosion Limits: Not available.

Decomposition Temperature: Not available.
Water Solubility : 0.000347 g/100 mL
Specific Gravity/Density: 1.06
Molecular Formula: C12H10
Molecular Weight:154.21

Section 10 - Stability and Reactivity 
Chemical Stability: Stable under normal temperatures and pressures.
Conditions to Avoid:Incompatible materials, light.
Incompatibilities with Other Materials: Strong oxidizing agents.
Hazardous Decomposition Products: Carbon monoxide, irritating and toxic fumes and gases, carbon dioxide.
Hazardous Polymerization:Has not been reported.

Section 11 - Toxicological Information
RTECS#: CAS# 83-32-9:AB1000000
LD50/LC50: Intraperitoneal - rat - 600 mg/kg
Carcinogenicity:
IARC: 3 - Group 3: Not classifiable as to its carcinogenicity to humans (Acenaphthene).
Other Studies: The toxicological properties have not been fully investigated.

Section 12 - Ecological Information 
Toxicity
Toxicity to fish LC50 - Oncorhynchus mykiss (rainbow trout) - 0,67 mg/l - 96,0 h
LC50 - Pimephales promelas (fathead minnow) - 0,6 - 1,73 mg/l - 96,0 h
Toxicity to daphnia and EC50 - Daphnia magna (Water flea) - 1,27 - 3,45 mg/l - 48 h
other aquatic invertebrates
Toxicity to algae EC50 - Pseudokirchneriella subcapitata (green algae) - 0,52 - 0,53 mg/l - 96 h
Bioaccumulative potential
Bioaccumulation Lepomis macrochirus (Bluegill) - 28 d -0,00894 mg/l
Bioconcentration factor (BCF): 387
Other adverse effects
Very toxic to aquatic life.

Section 13 - Disposal Considerations 
Product: Offer surplus and non-recyclable solutions to a licensed disposal company. Contact a licensed
professional waste disposal service to dispose of this material. Dissolve or mix the material with a
combustible solvent and burn in a chemical incinerator equipped with an afterburner and scrubber.
Contaminated packaging: Dispose of as unused product.

Section 14 - Transport Information 
14.1 UN number
ADR/RID: 3077      IMDG: 3077                            IATA: 3077
14.2 UN proper shipping name
ADR/RID: ENVIRONMENTALLY HAZARDOUS SUBSTANCE, SOLID, N.O.S. (Acenaphthene)
IMDG: ENVIRONMENTALLY HAZARDOUS SUBSTANCE, SOLID, N.O.S. (Acenaphthene)
IATA: Environmentally hazardous substance, solid, n.o.s. (Acenaphthene)
14.3 Transport hazard class(es)
ADR/RID: 9           IMDG: 9                                  IATA: 9
14.4 Packaging group
ADR/RID: III         IMDG: III                                  IATA: III
14.5 Environmental hazards
ADR/RID: yes     IMDG Marine pollutant: yes       IATA: yes

Section 15 - Regulatory Information 
European/International Regulations
      European Labeling in Accordance with EC Directives
           Hazard Symbols: Xi,N
           Risk Phrases:
                  R36/37/38: Irritating to eyes, respiratory system and skin
                  R50/53: Very Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment
            Safety Phrases:
                  S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
                  S36/37/39: Wear suitable protective clothing, gloves and eye/face protection
                  S60: This material and/or its container must be disposed of as hazardous waste
                  S61: Avoid release to the environment. Refer to special instructions safety data sheet                

Section 16 - Additional Information
While the information herein is believed to be reliable, it is furnished without warranty of any kind. It shall be used only as a guide. We assume no liabilities from the use of this product or information contained herein.