m-Nitrotoluene

  • 1-Methyl-3-nitrobenzene
  • 3-Nitrotoluene
Formula
3-(NO2)C6H4CH3
Structure
Description
Yellow liquid, weak aromatic odor.
Uses
Manufacture of dyes, toluidines, nitrobenzoic acids. Nitrotoluene.

Registry Numbers and Inventories.
CAS
99-08-1
EC (EINECS/ELINCS)
202-728-6
EC Class
toxic
R 23/24/25 33 51/53
S 28 37 45 61
RTECS
XT2975000
RTECS class
Tumorigen; Mutagen; Reproductive Effector
UN (DOT)
1664
Merck
12,6748
Beilstein/Gmelin
1906910
Beilstein Reference
4-05-00-00847
Swiss Giftliste 1
G-183211
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
C7H7NO2
Formula mass
137.14
Melting point, °C
15.5
Boiling point, °C
230
Vapor pressure, mmHg
0.14 (25 C)
Vapor density (air=1)
4.73
Saturation Concentration
130 ppm (0.01%) at 20 C (calculated)
Odor Threshold Odor threshold 1.74 ppm
Density
1.1571 g/cm3 (20 C)
Solubility in water
500 mg/L
Viscosity
2.24 cp (20 C)
Surface tension
39.07 g/s2 @ 40 C
Refractive index
1.5466 (20C)
Partition coefficient, pKow
2.45
Heat of vaporization
44.2 kJ/mol
Heat of combustion
-3578 kJ/mol

Hazards and Protection.
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. Avoid ingestion and inhalation.
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.
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. Clean up spills immediately, using the appropriate protective equipment. Provide ventilation.
Disposal code
9
Stability
Stable under normal temperatures and pressures.
Incompatibilities
Oxidizing agents
Decomposition
Nitrogen oxides, carbon monoxide, carbon dioxide, nitrogen.

Fire.
Flash Point,°C
102
Autoignition, °C
440
Upper exp. limit, %
7.6
Lower exp. limit, %
1.6
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.
Fire potential
Moderately flammable. Flammable liquid.
Hazards
Containers may explode when heated.
Combustion products
Emits toxic fumes of oxides of nitrogen.
Health
3
 
Flammability
1
 
 
Reactivity
1
 

Health.
Exposure limit(s)
NIOSH REL: TWA 2 ppm (11 mg/m3) [skin] OSHA PEL: TWA 5 ppm (30 mg/m3) [skin] IDLH 200 ppm
Poison_Class
3
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%.
   Ingestion
Aspiration hazard. May cause digestive tract disturbances. May be harmful if swallowed.
   Inhalation
May be fatal if inhaled. Aspiration may cause respiratory swelling and pneumonitis. Aspiration may lead to pulmonary edema. Effects of inhalation may be delayed.
   Skin
May cause skin irritation. Effects of contact may be delayed.
   Eyes
May cause eye irritation.

First aid
 
   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
Get medical aid immediately. Remove from exposure to fresh air immediately. If breathing is difficult, give oxygen. 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.
   Eyes
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.

Transport.
UN number
1664
Response guide
Hazard class
6.1
Packing Group
II
 
USCG CHRIS Code
NTR
 
42 Nitrocompounds
HS Code
2904 20 00
 
Std. Transport #
4963131