Supplier Product Identification Physical and Chemical Properties First Aid Measures Handling and Storage Hazards Identification Exposure Controls/Personal Protection Fire Fighting Measures Accidental Release Measures Stability and Reactivity Transport Information
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2-Methylnaphthalene(91-57-6)

Supplier Product Identification Physical and Chemical Properties First Aid Measures Handling and Storage Hazards Identification Exposure Controls/Personal Protection Fire Fighting Measures Accidental Release Measures Stability and Reactivity Transport Information

Product Identification

Product Name
2-Methylnaphthalene
Synonyms
beta-Methylnaphthalene
CAS
91-57-6
Formula
C11H10
Molecular Weight
142.19999999999999
EINECS
202-078-3
RTECS
QJ9635000
RTECS Class
Tumorigen; Mutagen
Beilstein/Gmelin
906859
Beilstein Reference
4-05-00-01693
EC Class
harmful, dangerous for the environment

Physical and Chemical Properties

Appearance
White crystalline solid.
Solubility in water
30 mg/L
Melting Point
32 - 35
Boiling Point
241
Vapor Pressure
0.03 (25 C)
Density
1.0058 g/cm3 (20 C)
Partition Coefficient
3.86
Heat Of Vaporization
52.8 kJ/mol
Heat Of Combustion
-5794 kJ/mol
Usage
Organic synth, insecticides.
Vapor Density
1
Odor threshold
10 ppb
Refractive Index
1.6015 (40 C)

First Aid Measures

Ingestion
If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid immediately.
Inhalation
Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. 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.
Eyes
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.

Handling and Storage

Storage
Keep container closed when not in use. Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
Handling
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation.

Hazards Identification

Inhalation
Inhalation of dust may cause respiratory tract irritation.
Skin
Causes skin irritation. May cause photosensitization in certain individuals.
Eyes
Causes eye irritation.
Ingestion
May be harmful if swallowed.
Hazards
Containers may explode when heated.
EC Risk Phrase
R 22 36/37/38
EC Safety Phrase
S 26 36/37/39
UN (DOT)
3082

Exposure Controls/Personal Protection

Personal Protection
Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.
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.
Exposure Effects
Hemolytic anemia has developed in neonates following in utero exposure. In utero exposure causes cataracts in rats.
Exposure limit(s)
OEL-RUSSIA:STEL 20 mg/m3
Poison Class
3

Fire Fighting Measures

Flash Point
98
Autoignition
488
Fire Fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Dusts at sufficient concentrations can form explosive mixtures with air. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. To extinguish fire use water spray, dry chemical, carbon dioxide, or chemical foam.
Upper exp. limit
5.3
Lower exp. limit
.8
Fire Potential
This chemical is combustible.

Accidental Release Measures

Small spills/leaks
Sweep up, then place into a suitable container for disposal. Avoid generating dusty conditions. Provide ventilation.

Stability and Reactivity

Disposal Code
3
Stability
Stable under normal temperatures and pressures.
Incompatibilities
Strong oxidizing agents.
Decomposition
Carbon monoxide, irritating and toxic fumes and gases, carbon dioxide.
Combustion Products
Fire may produce irritating, corrosive and/or toxic gases.

Transport Information

UN Number
3082
Hazard Class
9
Packing Group
III
HS Code
2902 90 80
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