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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alpha-Methylnitrobenzene(88-72-2)

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
alpha-Methylnitrobenzene
Synonyms
1-Methyl-2-nitrobenzene
2-Methylnitrobenzene
2-Nitrotoluene
Methylnitrobenzene
CAS
88-72-2
Formula
C7H7NO2
Molecular Weight
137.13999999999999
EINECS
201-853-3
RTECS
XT3150000
RTECS Class
Tumorigen; Mutagen; Reproductive Effector
Merck
12,6748
Beilstein/Gmelin
1907580
Beilstein Reference
4-05-00-00845
EC Index Number
609-006-00-3
EC Class
Toxic; Danger of cumulative effects; Dangerous for the Environment

Physical and Chemical Properties

Appearance
Yellow liquid with an almond-like odor.
Solubility in water
0.7 g/L
Melting Point
-4 - -3
Boiling Point
221.7
Vapor Pressure
0.29 (25 C)
Density
1.163 g/cm3 (20 C)
Partition Coefficient
2.3
Heat Of Vaporization
59.1 kJ/mol
Heat Of Combustion
-3597 kJ/mol
Usage
For production of toluidine, tolidine, fuchsine, and various synthetic dyes.
Vapor Density
4.72
Saturation Concentration
0.01% (20 C)
Odor threshold
0.05 mg/L
Refractive Index
1.5450 (20 C)

First Aid Measures

Ingestion
Never give anything by mouth to an unconscious person. Get medical aid immediately. Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water.
Inhalation
Get medical aid immediately. Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. DO NOT use mouth-to-mouth respiration. If breathing has ceased apply artificial respiration using oxygen and a suitable mechanical device such as a bag and a mask.
Skin
Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse.
Eyes
Immediately 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
Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
Handling
Wash thoroughly after handling. Use only in a well ventilated area. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid contact with heat, sparks and flame. Do not ingest or inhale.

Hazards Identification

Inhalation
May be fatal if inhaled. Causes respiratory tract irritation. Aspiration may cause respiratory swelling and pneumonitis.
Skin
Causes mild skin irritation.
Eyes
Causes mild eye irritation.
Ingestion
Aspiration hazard. May be harmful if swallowed. Causes digestive tract irritation.
Hazards
Containers may explode when heated.
EC Risk Phrase
R 23/24/25 33 51/53
EC Safety Phrase
S 28 37 45 61
UN (DOT)
1664

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
CNS effects include headache, dizziness, altered mental status, confusion (lethargy progressing coma), seizures, syncope; occur secondary to CNS hypoxia, usually with levels > 20%.
Exposure limit(s)
TLV (as TWA): 2 ppm; 11 mg/m3 (skin) (ACGIH 1991-1992). OSHA PEL: TWA 5 ppm (30 mg/m3) skin NIOSH REL: TWA 2 ppm (11 mg/m3) skin NIOSH IDLH: 200 ppm
Poison Class
3

Fire Fighting Measures

Flash Point
106
Autoignition
420
Fire Fighting
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. Containers may explode when heated. Extinguishing media: Use water spray to cool fire-exposed containers. Do NOT use straight streams of water. For small fires, use dry chemical, carbon dioxide, or water spray. For large fires, use water spray, fog or regular foam.
Upper exp. limit
8.8
Lower exp. limit
1.47
Fire Potential
Moderately flammable. Combustible.

Accidental Release Measures

Small spills/leaks
Absorb spill with inert material, (e.g., dry sand or earth), then place into a chemical waste container. Avoid runoff into storm sewers and ditches which lead to waterways. Provide ventilation.

Stability and Reactivity

Disposal Code
9
Incompatibilities
Oxidizing agents
Stability
Stable under normal temperatures and pressures.
Decomposition
Nitrogen oxides, carbon monoxide, carbon dioxide, nitrogen.
Combustion Products
Toxic fumes may be generated.

Transport Information

UN Number
1664
Hazard Class
6.1
Packing Group
II
HS Code
2904 20 00
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