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1. General Information
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Chemical Name:
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1,2,3,4,-Tetrahydronaphthalene
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Synonyms:
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THN, Tetranap, Tetralin
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Formula:
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C10H12
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Molecular Weight:
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132.20
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CAS #:
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119-64-2
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2. Hazardous Ingredients
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1,2,3,4,-Tetranaphthalene:
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85-99%
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Naphthalene:
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0-15%
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Exposure Limits
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1,2,3,4,-Tetranaphthalene:
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None Established
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Naphthalene:
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10 ppm (50mg/m³) TLV-TWA
10 ppm (50mg/m³) PEL-TWA
15 ppm (75mg/m³) TLV-STEL
15 ppm (75mg/m³) PEL-STEL
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3. Physical Data
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Specific Gravity (H2O=1):
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0.972 at 20/20°C
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Boiling Point:
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207.2°C
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Melting Point:
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N/A
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Freezing Point:
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-35.8°C
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Vapor Pressure:
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1 mmHg at 38°C
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Vapor Density(air=1):
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4.55
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pH:
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Unknown
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Solubility in Water:
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<0.01% weight at 60°C
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Appearance and Odor:
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Colorless to pale yellow liquid, moth-ball odor
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4. Health Hazard Data
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Oral LD50 (rats):
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2860 mg/kg
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Dermal LD50 (rabbits):
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2000 mg/kg
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Inhalation LC50
(guinea pig):
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275 ppm
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Skin Effects (rabbits):
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Severe irritant
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Eye Effects (rabbits):
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Mild irritant
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Carcinogenicity:
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This product does not contain any chemicals listed as
carcinogens by IARC, NTP, or OSHA.
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Effects of Single Overexposure:
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Ingestion- Initial symptoms include headache, confusion,
sweating, nausea, vomiting, abdominal pain, and irritation of the bladder.
Jaundice, hemolysis, and anemia may occur. Renal tubular blockage, acute
renal shut down, transient liver damage, and production of grey-green urine
may also occur. Aspiriatin may occur after swallowing this products and may
result in pneumonitis.
Skin Absorbition-Harmful if absorbed through skin. May cause same symptoms as
for swallowing.
Inhalation- May be harmful if inhaled and cause irritation to the respiratory
tract. Headache, nausea, and vomiting. Inhaling from high concentrations may
cause intravascular hemolysis.
Skin Irritation- Causes sever skin irritation.
Eye Contact- Causes eye irritation. Seen as tearing and redness. Vapors or
sprays may be irritating to the eyes.
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Effects of Repeated Overexposure:
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Repeated may lead to contact dermatitis. May also cause
more severe liver and kidney damage, dizziness, weakness, weight loss,
nervousness, plus pain and numbness in the limbs. Repeated overexposure has
caused cataracts in some animal studies.
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Other Effects of Overexposure:
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In sever cases of overexposure, may cause central nervous
system depression or anemia.
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Existing Medical Conditions Possibly Aggravated By
Exposure:
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Skin irritation may be aggravated in persons with existing
skin lesions. Breathing of vapor or mists may aggravate acute or chronic
asthma and chronic pulmonary disease such as emphysema or bronchitis.
Individuals with a deficiency of glucose-6-phosphate dehydrogenase in
erythrocytes are more susceptible to effects of hemolysis.
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Emergency and First Aid Procedures:
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Ingestion- If patient is conscious and alert, give 2-3
glasses of water to drink. Do not induce vomiting. Fet medical attention
immediately. To prevent aspiration of swallowed product, lay patient on side
with head lower than waist.
Skin- Immediately wash skin with plenty of soap and water, while removing
contaminated clothing and shoes. Wash clothing separately before reuse.
Inhalation- Remove victim to fresh air. If not breathing, administer CPR or
artificial respiration. If breathing is difficult, administer oxygen. Get
medical attention.
Eyes- Hold eyelids open and flush with a steady, gentle stream of water for
at least 15 mins. Get medical attention.
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Notes To Physician:
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No specific antidote is available. Treat symptomatically.
Consideration should be given to the possibility that overexposure to
materials other than this product may have occurred. This product is a liquid
hydrocarbon. If large amounts (greater than 1ml/kg body weight) have been
ingested, the stomach should be evacuated by gastric intubation with the aid
of a cuffed endotracheal tube to prevent aspiration of the liquid
hydrocarbon. After removal of stomach contents, wash stomach by instilling
30-50 grams of activated charcoal in 3-4 ounces of water through the stomach
tube and again remove stomach contents. Avoid oily laxatives.
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5. Fire and Explosion Hazard Data
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Flash Point:
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88°C (open cup)
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Flammable Limits in Air
(% by volume):
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Lower- 0.8
Upper- 5.0
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Autoignition Temperature:
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384°C
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Extinguishing Media:
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Use carbon dioxide or dry chemical for small fire. Use
water spray or foam (alcohol, polymer, or ordinary) for large fire.
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Special Firefighting Procedures:
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1. Evacuate residents who are downwind of fire.
2. Prevent unauthorized entry to fire area.
3. Persons who may have been exposed to contaminated smoke should be examined
by a physician and treated appropriately.
4. Dike area to prevent runoff and contamination of water sources.
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Local Firemen Should:
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1. Wear protective clothing and use self-contained
breathing apparatus.
2. Be immediately relieved from duty, if exposed to contaminated smoke, and
checked for symptoms of poisoning. These should not be mistaken for heat
exhaustion or smoke inhalation. See section 4, Health Hazard Data for
symptoms of poisoning, first aid procedures, and notes to the physician.
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Unusual Hazards:
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Combustion products may be hazardous. These may include
carbon dioxide, carbon monoxide, and peroxides.
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6. Reactivity Data
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Stablility:
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Stable
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Conditions to Avoid:
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This material oxidizes slowly in the presence of air to yeild
peroxides, which may be dangerous at high concentrations and elevated
temperatures. Keep away from heat, sparks, open flame, and other ignition
sources.
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Materials to Avoid:
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Strong oxidizing agents (such as liquid oxygen, ozone,
peroxides), concentrated mineral acids, halogens, and the presence of air at
elevated temperatures and/or during long term storage.
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Hazardous Decomposition Products:
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Thermal decomposition may produce carbon monoxide, carbon
dioxide, and peroxides.
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Hazardous Polymerization:
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Will not occur.
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7. Spill or Leak Procedures:
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Combustible Liquid:
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Extinguish and do not turn on any ignition source until
the area is determined t be free of any fire or explosion hazard.
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Steps to be taken if material is released or spilled:
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Dike large spills using absorbent or impervious materials
such as sand or clay. Recover and contain as much free liquid as possible.
Recover remaining spilled material as appropriate. Collect and contain
contaminated absorbent and dike material for disposal. Absorb small spills on
sand or vermiculite. Place contaminated material in appropriate container for
disposal. If spilled on the ground, the affected area should be removed to a
depth of 1-2 inches and placed in an appropriate container for disposal. Do
not flush material to public sewers systems or any waterways. Wear
appropriate protective clothing and equipment (see below) during cleanup
activities. Ensure adequate decontamination to tools and equipment following
cleanup.
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Waste Disposal Method:
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Dispose of in accordance with local, state, and federal
regulations.
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8. Special Protection Information
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Protective Equipment Should Be Worn During:
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-Manufacture or formulation of this product.
-Repair and maintenance of contaminated equipment.
-Clean up of leaks and spills.
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Respiratory Protection:
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Use NIOSH/MSHA approved respirator for organic vapors when
handling spills or leaks, or when airborne concentrations exceed exposure
limits.
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Ventilation:
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Local exhaust ventilation, when necessary.
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Protective Gloves:
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Chemical resistant gloves, e.g. pvc or butyl
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Eye Protection:
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Goggles, eye bath
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Other Protective Equipment:
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Protective clothing, saftey shower
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9. Special Precautions
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Precautions To Be Taken In Handling and Storing:
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Do not swallow. Avoid breathing vapors or mists. Avoid
getting in eyes, on skin, or on clothing. Keep away from heat, sparks, open flame,
and other ignition sources. Store in a cool, dry place. Inert blanketing
(nitrogen) may be used to minimize peroxide formation. Do not contaminate
water, food, or feed by storage or disposal.
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10. Regulatory Status
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TSCA Inventory Status:
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All components are listed on TSCA inventory.
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RCRA Hazardous Waste:
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U165, Naphthalene
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Reportable Quantity (RQ), Under US EPA CERCLA:
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1000 lbs. Naphthalene
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