**** SECTION 2 - COMPOSITION, INFORMATION ON INGREDIENTS ****
+----------------+--------------------------------------+----------+-----------+
| CAS# | Chemical Name | % | EINECS# |
|----------------|--------------------------------------|----------|-----------|
| 91-20-3 |Naphthalene | >98 | 202-049-5 |
+----------------+--------------------------------------+----------+-----------+
Hazard Symbols: XN N
Risk Phrases: 22 50/53
**** SECTION 3 - HAZARDS IDENTIFICATION ****
EMERGENCY OVERVIEW
Harmful if swallowed. Very toxic to aquatic organisms, may cause
long-term adverse effects in the aquatic environment.Hygroscopic
(absorbs moisture from the air).
Potential Health Effects
Eye:
Naphthalene is an eye irritant. The vapor causes eye irritation at
15 ppm. Eye contact with the solid material may result in
conjunctivitis, superficial injury to the cornea, diminished visual
acuity, and other effects. It may cause cataracts.
Skin:
Causes mild skin irritation. May be absorbed through the skin in
harmful amounts. Incidence of skin hypersensitivity is not widespread
in the general population &, based on the long history of use of
naphthalene as a consumer product, this effect is mostly confined to
industrial exposure where coal tar contamination may be present.
Ingestion:
Harmful if swallowed. May cause liver and kidney damage. May cause
methemoglobinemia, cyanosis (bluish discoloration of skin due to
deficient oxygenation of the blood), convulsions, and death. May
cause severe digestive tract irritation with abdominal pain, nausea,
vomiting and diarrhea. Ingestion of large quantities may cause
severe hemolytic anemia and hemoglobinuria.
Inhalation:
Harmful if inhaled. Causes respiratory tract irritation. Readily
absorbed when inhaled. Material volatilizes at room temperature.
Hemolytic anemia (destruction of red blood cells) is the primary
health concern for humans exposed to naphthalene for either short or
long periods of time. Other effects may include nausea, profuse
perspiration, vomiting, kidney damage and liver damage. Optic
neuritis (inflammation of the optic nerve) has been observed.
Cataracts have also occurred.
Chronic:
Prolonged or repeated skin contact may cause dermatitis. May cause
liver and kidney damage. May cause anemia and other blood cell
abnormalities. Animal studies have reported that fetal
effects/abnormalities may occur when maternal toxicity is seen.
Effects may be delayed. Chronic exposure may cause lung damage.
Laboratory experiments have resulted in mutagenic effects. Chronic
exposure may cause corneal injury, optical neuritis, blurred vision,
and possible cataract formation. Chronic inhalation, skin absorption
or ingestion of naphthalene have caused severe hemolytic anemia.
**** SECTION 4 - FIRST AID MEASURES ****
Eyes:
In case of contact, immediately flush eyes with plenty of water for
at least 15 minutes. Get medical aid.
Skin:
In case of contact, flush skin with plenty of water. Remove
contaminated clothing and shoes. Get medical aid if irritation
develops and persists. Wash clothing before reuse.
Ingestion:
If swallowed, do not induce vomiting unless directed to do so by
medical personnel. Never give anything by mouth to an unconscious
person. Get medical aid.
Inhalation:
If inhaled, remove to fresh air. If not breathing, give artificial
respiration. If breathing is difficult, give oxygen. Get medical aid.
Notes to Physician:
Individuals with a glucose-6-phosphate dehyrogenase deficiency are
hypersensitive to the effects of naphthalene.
**** 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. Water runoff can cause environmental damage. Dike
and collect water used to fight fire. 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.
Flammable solid. Dusts may be an explosion hazard if mixed with air
at critical proportions and in the presence of an ignition source.
Volatile solid that gives off flammable vapors when heated.
Extinguishing Media:
Water or foam may cause frothing. Use water spray, dry chemical,
carbon dioxide, or appropriate foam.
**** SECTION 6 - ACCIDENTAL RELEASE MEASURES ****
General Information: Use proper personal protective equipment as indicated
in Section 8.
Spills/Leaks:
Avoid runoff into storm sewers and ditches which lead to waterways.
Clean up spills immediately, observing precautions in the Protective
Equipment section. Scoop up with a nonsparking tool, then place into
a suitable container for disposal. Avoid generating dusty
conditions. Remove all sources of ignition. Provide ventilation. Do
not let this chemical enter the environment.
**** SECTION 7 - HANDLING and STORAGE ****
Handling:
Wash thoroughly after handling. Remove contaminated clothing and
wash before reuse. Minimize dust generation and accumulation. Avoid
breathing dust, vapor, mist, or gas. Avoid contact with eyes, skin,
and clothing. Keep container tightly closed. Use only with adequate
ventilation.
Storage:
Keep away from sources of ignition. Store in a tightly closed
container. Store in a cool, dry, well-ventilated area away from
incompatible substances. Storage under a nitrogen blanket has been
recommended. Store protected from moisture. Separate from oxidizing
materials.
**** 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 general or local exhaust
ventilation to keep airborne concentrations below the permissible
exposure limits.
Exposure Limits
CAS# 91-20-3:
United States OSHA: 10 ppm TWA; 50 mg/m3 TWA
Belgium - TWA: 10 ppm VLE; 53 mg/m3 VLE
Belgium - STEL: 15 ppm VLE; 80 mg/m3 VLE
France - VME: 10 ppm VME; 50 mg/m3 VME
Germany: 10 ppm TWA; 50 mg/m3 TWA
Germany: Skin absorber
Malaysia: 10 ppm TWA; 52 mg/m3 TWA
Netherlands: 10 ppm MAC; 50 mg/m3 MAC
Russia: 20 mg/m3 TWA
Spain: 10 ppm VLA-ED; 53 mg/m3 VLA-ED
Spain: 15 ppm VLA-EC; 80 mg/m3 VLA-EC
Personal Protective Equipment
Eyes:
Wear chemical splash goggles.
Skin:
Wear appropriate protective gloves to prevent skin
exposure.
Clothing:
Wear appropriate protective clothing to prevent skin
exposure.
Respirators:
A respiratory protection program that meets OSHA's 29
CFR 1910.134 and ANSI Z88.2 requirements or European
Standard EN 149 must be followed whenever workplace
conditions warrant respirator use.
**** SECTION 9 - PHYSICAL AND CHEMICAL PROPERTIES ****
Physical State: Solid
Color: white
Odor: mothball-like
pH: Not available.
Vapor Pressure: 0.05 mm Hg @ 20 deg C
Viscosity: Not available.
Boiling Point: 218 deg C
Freezing/Melting Point: 79 - 82 deg C
Autoignition Temperature: 526 deg C ( 978.80 deg F)
Flash Point: 78 deg C ( 172.40 deg F)
Explosion Limits, lower: 0.90 vol %
Explosion Limits, upper: 5.90 vol %
Decomposition Temperature: 540 deg C
Solubility in water: Insoluble.
Specific Gravity/Density: 0.9900g/cm3
Molecular Formula: C10H8
Molecular Weight: 128.17
**** SECTION 10 - STABILITY AND REACTIVITY ****
Chemical Stability:
Stable at room temperature in closed containers under normal storage
and handling conditions.
Conditions to Avoid:
Ignition sources, dust generation, moisture, excess heat, exposure to
moist air or water, steam.
Incompatibilities with Other Materials:
Strong oxidizing agents.
Hazardous Decomposition Products:
Carbon monoxide, irritating and toxic fumes and gases, carbon
dioxide.
Hazardous Polymerization: Will not occur.
**** SECTION 11 - TOXICOLOGICAL INFORMATION ****
RTECS#:
CAS# 91-20-3: QJ0525000
LD50/LC50:
CAS# 91-20-3: Draize test, rabbit, eye: 100 mg Mild; Inhalation,
rat: LC50 = >340 mg/m3/1H; Oral, mouse: LD50 = 316 mg/kg; Oral, rat:
LD50 = 490 mg/kg; Skin, rabbit: LD50 = >20 gm/kg; Skin, rat: LD50 =
>2500 mg/kg.
Not available.
Carcinogenicity:
Naphthalene -
California: carcinogen, initial date 4/19/02
NTP: Suspect carcinogen
IARC: Group 2B carcinogen
Other:
See actual entry in RTECS for complete information.
**** SECTION 12 - ECOLOGICAL INFORMATION ****
Ecotoxicity:
Fish: Rainbow trout: LC50 = 1.60 mg/L; 96 Hr; Flow-through at 15
CFish: Fathead Minnow: LC50 = 6.14 mg/L; 96 Hr; Flow-through at 24.5
CWater flea Daphnia: EC50 = 2.16-8.60 mg/L; 48 Hr;
UnspecifiedBacteria: Phytobacterium phosphoreum: EC50 = 0.93 mg/L;
30 min; Microtox testFish: Pink salmon: LC50 = 1.24 mg/L; 96 Hr;
(fry) Static bioassay at 12CReleases into water are lost due to
volatilization, photolysis, adsorption, and biodegradation. The
principal loss processes will depend on local conditions but
half-lives can be expected to range from a couple of days to a few
months. When adsorbed to sediment, biodegradation occurs much more
Other
Harmful to aquatic life in very low concentrations.
**** SECTION 13 - DISPOSAL CONSIDERATIONS ****
Dispose of in a manner consistent with federal, state, and local regulations.
**** SECTION 14 - TRANSPORT INFORMATION ****
IATA
Shipping Name: NAPHTHALENE, REFINED
Hazard Class: 4.1
UN Number: 1334
Packing Group: III
IMO
Shipping Name: NAPHTHALENE, REFINED
Hazard Class: 4.1
UN Number: 1334
Packing Group: III
RID/ADR
Shipping Name: NAPHTHALENE, REFINED
Hazard Class: 4.1
UN Number: 1334
Packing group: III
USA RQ: CAS# 91-20-3: 100 lb final RQ; 45.4 kg final RQ
**** SECTION 15 - REGULATORY INFORMATION ****
European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: XN N
Risk Phrases:
R 22 Harmful if swallowed.
R 50/53 Very toxic to aquatic organisms, may cause
long-term adverse effects in the aquatic environment.
Safety Phrases:
S 36/37 Wear suitable protective clothing and
gloves.
S 60 This material and its container must be
disposed of as hazardous waste.
S 61 Avoid release to the environment. Refer to
special instructions/safety data sheets.
WGK (Water Danger/Protection)
CAS# 91-20-3: 2
Canada
CAS# 91-20-3 is listed on Canada's DSL List.
CAS# 91-20-3 is listed on Canada's Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 91-20-3 is listed on the TSCA inventory.
**** SECTION 16 - ADDITIONAL INFORMATION ****
MSDS Creation Date: 5/14/1999 Revision #6 Date: 2/06/2004
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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