MATERIAL SAFETY DATA SHEET NAPHTHALENE
PRODUCT CODE NUMBER(S): 5410-5
PRODUCT IDENTIFICATION Hazardous Decomposition Products: Toxic, irritating va-
pours
Chemical Name and Synonyms: Naphthalene, Moth balls,
Camphor tar FIRE AND EXPLOSION DATA
Chemical Family: Aromatic hydrocarbon
Flammability: Flammable, volatile solid. Emits flammable
Chemical Formula: C10H8
vapours when heated. May form explosive dust-air mix-
Product Use: Laboratory reagent tures.
Manufacturer鈥檚 Name and Address: Extinguishing Media: Water spray or fog, CO2, foam, dry
Caledon Laboratories Ltd. chemical. Water may be used to extinguish fire, and to cool
containers, disperse vapours or dust, ,and flush spill away
40 Armstrong Avenue
from fire. Fight fire from safe distance and from upwind.
Georgetown, Ontario L7G 4R9
Firefighters must wear protective equipment (posi-
Telephone No: (905) 877-0101
tive-pressure, full face-piece self- contained breathing
Fax No: (905) 877-6666 apparatus) and clothing sufficient to prevetn inhalation of
mist or vapour and contact with skin and eyes.
Emergency Telephone No: CANUTEC (613) 996-6666
Flash Point (Method Used): 79掳C (CC)
HAZARDOUS INGREDIENTS OF MATERIALS Autoignition Temperature: 526掳C
Upper Flammable Limit (% by volume): 5.9
Ingredients % TLV Units CAS No.
Lower Flammable Limit (% by volume): 0.9
Naphthalene ~98 10 ppm 91-20-3 Hazardous Combustion Products: COx, toxic, irritating
vapours
PHYSICAL DATA Sensitivity to Impact: None identifed
Physical State: Solid Sensitivity to Static discharge: Under certain conditions,
mixtures of dust with air may be ignited by static discharge.
Odour and Appearance: White to off-white crystals; dis-
tinctive moth ball or coal tar odour
TOXICOLOGICAL PROPERTIES AND HEALTH DATA
Odour Threshold (ppm): 0.3 to 0.9 ppm (detection). Good
warning properties
Toxicological Data:
Vapour Pressure (mm Hg): 0.054 mm Hg at 20掳C
LD50: (oral, rat) 1,200 mg/kg; (oral, mouse) 533 mg/kg;
Vapour Density (Air = 1): 4.42
(dermal, rat) 2,500 mg/kg
Evaporation Rate: Not available
LC50: (rat) 340 mg/m3/1h
Boiling Point (degrees C): 218掳C
Melting Point (degrees C): 80.2掳C Effects of Acute Exposure to Product:
pH: Not applicable
Inhaled: Irritating as dust, fumes or vapour. Toxic. High
Specific Gravity: 1.162 vapour concentrations may cause hemolytic anemia, with
Coefficient of Water/Oil distribution: LogP(oct) jaundice, hematuria, hemoglobinuria, malaise, liver damage,
=3.01-3.59 even convulsions and coma. May also cause headache,
nausea, vomiting, abdominal pain, confusion, irritated blad-
SHIPPING DESCRIPTION der, profuse sweating, optic neuritis and cataracts.
Absorption leads to the formation of methemoglobin which
UN: 1334
decreases the ability of the blood to carry oxygen, causing
T.D.G. Class: 4.1 cyanosis, possible convulsions. Severe overexposure can
be fatal. Onset may be delayed for several hours.
Pkg. Group: III
In contact with skin: May irritate. May cause systemic ef-
REACTIVITY DATA fects (see Inhalation) if absorbed. May cause allergic skin
reaction.
Chemical Stability: Normally stable; volatilizes appreciably In contact with eyes: Both vapour and solid are irritating.
at room temperature. Continued exposure to vapour concentrations above 15 ppm
Incompatibility with other substances: Can react vio- may cause serious effects. Particles of solid that remain in
lently with strong oxidizers, nitric or perchloric acids, CrO3, contact with the eye may cause reversible damage.
N2O5. Can react non-violently with strong acids. Not corro- Ingested: Toxic. See inhalation. Mean lethal dose for
sive to metals. adults is estimated at about 5 - 15g.
Reactivity: Avoid heat, sparks, flame, static discharge.
Emits flammable vapours when heated. Avoid all incompati-
ble materials. Prevent generation of dust.
NAPHTHALENE
MSDS
CODE: 5410-5
Effects of Chronic Exposure to Product: Storage Requirements: Store in suitable, labelled contain-
ers, a cool, dry, well-ventilated area, out of direct sunlight,
Little evidence of chronic low-level toxicity in humans. and away from all ignition sources and incompatible materi-
Long-term exposure by inhalation or ingestion has occasion- als. Storage facilities should be made of fire-resistant
ally resulted in corneal damage and cataracts. Prolonged materials. Protect from damage, and inspect frequently for
skin exposure may cause dermatitis or allergic rash. Individ- signs of leaking.
uals with inherited metabolic deficiency related to enzyme
FIRST AID MEASURES
activity of red blood cells may have increased susceptibility
to naphthalene poisoning.
Specific Measures:
Carcinogenicity: Not considered carcinogenic to humans
although some animal studies show exidence of Eyes: Flush eyes thoroughly with gently running water,
carcinogencitiy (IARC Group 2B, possible human carcino- holding eyelids open while flushing, for five to ten (5-10)
gen). minutes, or until no trace of chemical remains. Take care
Teratogenicity: Crosses placental barrier. In animal stud- not to flush contaminated water into unaffected eye. Get
ies, very large doses (which were maternally toxic - 2.4 to 6 medical attention.
g/kg) caused abnormalities, reduced live births. Skin: Remove contaminated clothing, including watches,
Reproductive Effects: Insufficient data available. rings, belts and shoes. Brush or wipe off dry material.
Flush skin with plenty of running water until no evidence of
Mutagenicity: Negative in Ames test and tests with cul-
chemical remains. If irritation develops get medical atten-
tured mammalian cells.
tion. Decontaminate clothing befire reuse, or discard.
Synergistic Products: None found
Inhalation: Remove to fresh air. Get medical attention.
PREVENTIVE MEASURES Because exposure can cause methemoglobinemia, the
symptoms of which may be delayed, unless exposure is mi-
Engineering Controls: Non-sparking, grounded ventilation nor, the victim needs to be monitored for several hours for
system, separate from other ventilation systems, and elec- cyanosis, irregular heart rate, loss of consciousness.
trical equipment that does not provide a source of ignition. Ingestion: If victim is alert, conscious, and not convulsing,
Respiratory Protection: Dust mask; fumehood. To 100 rinse mouth thoroughly with water and give 2 to 4 glasses
ppm; NIOSH/MSHA approved cartridge respirator with dust of water to drink to dilute. Do not induce vomiting. If spon-
and mist filter. To 250 ppm: supplied air respirator operated taneous vomiting occurs, keep head low to avoid aspiration
in continuous-flow mode. For higher or unknown concentra- of emesis, rinse mouth and give more water to drink. If
tions, or for fire or spill conditions: positive-pressure, full breathing has stopped begin artificial respiration immedi-
face-piece self-contained breathing apparatus, or posi- ately. If there is no pulse, begin CPR. Get medical
tive-pressure, full face-piece supplied-air respirator with an attention immediately.
auxiliary postive-pressure self-contained breathing appara-
REFERENCES USED
tus.
Eye Protection: Chemical safety goggles and/or face
Budavari: The Merck Index, 12th ed., 1997
shield.
Sax, Lewis: Hawley鈥檚 Condensed Chemical Dictionary, 11th
Skin Protection: Teflon脭 gloves. Impervious apron,
ed., 1987
sleeves, coveralls, boots, or other protective clothing suffi-
cient to prevent contact. Sax: Dangerous Properties of Industrial Materials, 5th ed.,
Other Personal Protective Equipment: Safety shower 1979
and eye-wash fountain in work area. Suppliers鈥? Material Safety Data Sheets
Leak and Spill Procedure: Evacuate area; shut off all
sources of ignition. Cleanup personnel must be thoroughly ADDITIONAL INFORMATION
trained in the handling of hazardous material, and must
Date Issued: June 28, 1991
wear protective equipment and clothing suffucient tp prevent
inhalation of vapours, mists, or dust, and contact with skin Revision: June 2007
and eyes. Do not touch spilled material. Prevent from en- MSDS: 5410-5
tering sewers or waterways. Mix with sand, transfer
Proposed WHMIS Designation: B4; D2A
carefully into labelled containers for removal by disposal
company. Contaminated absorbent may pose the same
Prepared by: Caledon Laboratories Ltd. (905) 877-0101
hazards as the chemical; treat with caution. Wash site of
spillage thoroughly with water and detergent. Caledon Laboratories Ltd. believes the information contained
Waste Disposal: Follow all federal, provincial and local herein is reliable and accurate. Caledon makes no warranty
regulations for disposal. with respect thereto and expressly disclaims all liability for reli-
Handling Procedures and Equipment: FLAMMABLE, ance thereon. Such information is solely for your consider-
TOXIC, POSSIBLE CARCINOGEN. Workers must be thor- ation, investigation, and verification.
oughly trained in the hazards of this material and its safe
use, and must wear appropriate protective equipment and
clothing. Use grounded, non-sparking ventilation systems
and electrical equipment. Use non-sparking tools. Avoid
generating dust. Keep away from all sources of ignition or
heat, and hot surfaces. Avoid all contact and inhalation of
vapours or dust. Use the smallest amount possible for the
purpose, in an area with adequate ventilation. Empty con-
tainers may contain hazardous residues; treat with caution.
Wash thoroughly after working with this product.
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