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MSDS 
:
 1,2,3,4-Tetrahydronaphthalene
CAS 
:
 119-64-2
SYNONYMS 
:
 THN; Tetrahydronaphthalene; Tetralin.
**** SECTION 2 - COMPOSITION, INFORMATION ON INGREDIENTS ****

+----------------+--------------------------------------+----------+-----------+
| CAS# | Chemical Name | % | EINECS# |
|----------------|--------------------------------------|----------|-----------|
| 119-64-2 |1,2,3,4-Tetrahydronaphthalene | 100 | 204-340-2 |
+----------------+--------------------------------------+----------+-----------+
Hazard Symbols: XI N
Risk Phrases: 19 36/38 51/53

**** SECTION 3 - HAZARDS IDENTIFICATION ****

EMERGENCY OVERVIEW
May form explosive peroxides. Irritating to eyes and skin. Toxic to
aquatic organisms; may cause long-term adverse effects in the
aquatic environment.Air sensitive.

Potential Health Effects
Eye:
May cause eye irritation.
Skin:
May cause skin irritation.
Ingestion:
Aspiration hazard. Causes gastrointestinal irritation with nausea,
vomiting and diarrhea. May cause central nervous system depression,
characterized by excitement, followed by headache, dizziness,
drowsiness, and nausea. Advanced stages may cause collapse,
unconsciousness, coma and possible death due to respiratory failure.
Inhalation:
Inhalation of high concentrations may cause central nervous system
effects characterized by nausea, headache, dizziness, unconsciousness
and coma. Inhalation of vapor may cause respiratory tract irritation.
May cause narcotic effects in high concentration. Exposure produces
central nervous system depression. May cause dizziness,
incoordination, and unconsciousness.
Chronic:
Overexposure may cause delayed kidney injury. Chronic ingestion may
cause liver 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. Do
NOT allow victim to rub or keep eyes closed.
Skin:
Get medical aid if irritation develops or persists. Wash clothing
before reuse. Flush skin with plenty of soap and water.
Ingestion:
Do NOT induce vomiting. If victim is conscious and alert, give 2-4
cupfuls of milk or water. Never give anything by mouth to an
unconscious person. Possible aspiration hazard. Get medical aid if
irritation or symptoms occur.
Inhalation:
Remove from exposure to fresh air immediately. If not breathing,
give artificial respiration. If breathing is difficult, give oxygen.
Get medical aid if cough or other symptoms appear. Do NOT use
mouth-to-mouth resuscitation.
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. During a fire, irritating and highly toxic gases
may be generated by thermal decomposition or combustion. Use water
spray to keep fire-exposed containers cool. May form explosive
peroxides. May accumulate static electrical charges, and may cause
ignition of its own vapors. Containers may explode when heated.
Combustible liquid and vapor. Vapors are heavier than air and may
travel to a source of ignition and flash back. Vapors can spread
along the ground and collect in low or confined areas.
Extinguishing Media:
In case of fire, use water, dry chemical, chemical foam, or
alcohol-resistant foam. Use water spray to cool fire-exposed
containers. Water may be ineffective.

**** SECTION 6 - ACCIDENTAL RELEASE MEASURES ****

General Information: Use proper personal protective equipment as indicated
in Section 8.
Spills/Leaks:
Absorb spill with inert material (e.g. vermiculite, sand or earth),
then place in suitable container. Clean up spills immediately,
observing precautions in the Protective Equipment section. Remove all
sources of ignition. Isolate area and deny entry. Provide
ventilation. Place under an inert atmosphere.

**** SECTION 7 - HANDLING and STORAGE ****

Handling:
Wash thoroughly after handling. Remove contaminated clothing and
wash before reuse. Use only in a well-ventilated area. Ground and
bond containers when transferring material. Avoid contact with skin
and eyes. Empty containers retain product residue, (liquid and/or
vapor), and can be dangerous. Keep container tightly closed. Avoid
contact with heat, sparks and flame. Avoid ingestion and inhalation.
If peroxide formation is suspected, do not open or move container.
Avoid contact with air and sunlight. Do not pressurize, cut, weld,
braze, solder, drill, grind, or expose empty containers to heat,
sparks or open flames. Unused chemicals should not be returned to
the container. Do not distill since this removes
peroxide-inhibitors.
Storage:
Keep away from heat, sparks, and flame. Keep away from sources of
ignition. Do not store in direct sunlight. Store in a tightly closed
container. Keep from contact with oxidizing materials. Store in a
cool, dry, well-ventilated area away from incompatible substances.
Regularly check inhibitor levels to maintain peroxide levels below
1%. Do not break the seal on the container until it is needed.
Long-term storage is not recommended. Containers should be dated
when opened and tested periodically for the presence of peroxides.
Should crystals form in a peroxidizable liquid, peroxidation may
have occurred and the product should be considered extremely
dangerous. In this instance, the container should only be opened
remotely by professionals. All peroxidizable substances should be
stored away from heat and light and be protected from ignition
sources.

**** SECTION 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION ****

Engineering Controls:
Use explosion-proof ventilation equipment. Facilities storing or
utilizing this material should be equipped with an eyewash facility
and a safety shower. Use adequate ventilation to keep airborne
concentrations low.
Personal Protective Equipment

Eyes:
Wear chemical goggles.
Skin:
Wear appropriate gloves to prevent skin exposure.
Clothing:
Wear appropriate protective clothing to minimize
contact with skin.
Respirators:
Follow the OSHA respirator regulations found in 29CFR
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: Liquid
Appearance: clear, colorless to pale yellow liquid.
Odor: gasoline-like - hydrocarbon-like
pH: Not available.
Vapor Pressure: 1 mm Hg @ 38 deg C
Viscosity: 2.2 mPa s @20 deg C
Boiling Point: 207 deg C
Freezing/Melting Point: -30 deg C
Autoignition Temperature: 385 deg C ( 725.00 deg F)
Flash Point: 71 deg C ( 159.80 deg F)
Explosion Limits, lower: 0.8% @ 212F
Explosion Limits, upper: 5.0% @ 302F
Decomposition Temperature: Not available.
Solubility in water: Negligible.
Specific Gravity/Density: .97
Molecular Formula: C10H12
Molecular Weight: 132.20

**** SECTION 10 - STABILITY AND REACTIVITY ****

Chemical Stability:
Under normal storage conditions, peroxidizable compounds can form
and accumulate peroxides which may explode when subjected to heat or
shock. This material is most hazardous when peroxide levels are
concentrated by distillation or evaporation.
Conditions to Avoid:
Light, ignition sources, exposure to air, excess heat.
Incompatibilities with Other Materials:
Strong oxidizing agents, Attacks some forms of plastics, rubber, and
coatings..
Hazardous Decomposition Products:
Carbon monoxide, irritating and toxic fumes and gases, carbon
dioxide.
Hazardous Polymerization: Will not occur.

**** SECTION 11 - TOXICOLOGICAL INFORMATION ****

RTECS#:
CAS# 119-64-2: QK3850000
LD50/LC50:
CAS# 119-64-2: Oral, rat: LD50 = 1620 uL/kg; Skin, rabbit: LD50 =
17300 uL/kg.
Carcinogenicity:
1,2,3,4-Tetrahydronaphthalene -
Not listed by ACGIH, IARC, NIOSH, NTP, or OSHA.
See actual entry in RTECS for complete information.

**** SECTION 12 - ECOLOGICAL INFORMATION ****

Other
No information available.

**** 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: Not regulated.
Hazard Class:
UN Number:
Packing Group:
IMO
Shipping Name: Not regulated.
Hazard Class:
UN Number:
Packing Group:
RID/ADR
Shipping Name: Not regulated.
Dangerous Goods Code: (32C)
UN Number:

**** SECTION 15 - REGULATORY INFORMATION ****

European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: XI N
Risk Phrases:
R 19 May form explosive peroxides.
R 36/38 Irritating to eyes and skin.
R 51/53 Toxic to aquatic organisms; may cause
long-term adverse effects in the aquatic environment.
Safety Phrases:
S 26 In case of contact with eyes, rinse immediately
with plenty of water and seek medical advice.
S 28A After contact with skin, wash immediately with
plenty of water.
S 61 Avoid release to the environment. Refer to
special instructions/Safety data sheets.
WGK (Water Danger/Protection)
CAS# 119-64-2: 2
United Kingdom Occupational Exposure Limits

Canada
CAS# 119-64-2 is listed on Canada's DSL List.
CAS# 119-64-2 is listed on Canada's Ingredient Disclosure List.
Exposure Limits
US FEDERAL
TSCA
CAS# 119-64-2 is listed on the TSCA inventory.

**** SECTION 16 - ADDITIONAL INFORMATION ****

MSDS Creation Date: 10/26/1998 Revision #3 Date: 10/19/2001

The information above is believed to be accurate and represents the best
information currently available to us. However, we make no warranty of
merchantability or any other warranty, express or implied, with respect to
such information, and we assume no liability resulting from its use. Users
should make their own investigations to determine the suitability of the
information for their particular purposes. In no way shall the company be
liable for any claims, losses, or damages of any third party or for lost
profits or any special, indirect, incidental, consequential or exemplary
damages, howsoever arising, even if the company has been advised of
the possibility of such damages.
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