p-Nitrotoluene

  • 4-Hydroxynitrobenzene
  • 4-Nitrotoluene
  • 1-Methyl-4-nitrobenzene
  • p-Methylnitrobenzene
Formula
C7H7NO2
Structure
Description
Colorless to yellow solid with a weak aromatic odor.
Uses
Synthesis of intermediates & explosives.

Registry Numbers and Inventories.
CAS
99-99-0
EC (EINECS/ELINCS)
202-808-0
EC Index Number
609-006-00-3
EC Class
Toxic; Danger of cumulative effects; Dangerous for the Environment
R 23/24/25 33 51/53
S 28 37 45 61
RTECS
XT3325000
RTECS class
Tumorigen; Mutagen; Reproductive Effector
UN (DOT)
1664
Merck
12,6748
Beilstein/Gmelin
1906911
Beilstein Reference
4-05-00-00848
Swiss Giftliste 1
G-183210
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed

Properties.
Formula
C7H7NO2
Formula mass
137.14
Melting point, °C
51
Boiling point, °C
238.3
Vapor pressure, mmHg
0.04 (20 C)
Vapor density (air=1)
4.72
Saturation Concentration
132 ppm at 20 C
Critical temperature
470
Critical pressure
31.7
Density
1.299 g/cm3 (0 C)
Solubility in water
0.4 g/L
Viscosity
1.201 cp (60 C)
Surface tension
36.83 g/s2 @ 60 C
Refractive index
1.53019 (55 C)
Partition coefficient, pKow
2.37
Heat of vaporization
50.2 kJ/mol
Heat of combustion
-4768 kJ/mol

Hazards and Protection.
Storage
Store in a tightly closed container. Keep from contact with oxidizing materials. Store in a cool, dry, well-ventilated area away from incompatible substances.
Handling
Wash thoroughly after handling. Use with adequate ventilation. Minimize dust generation and accumulation. Avoid prolonged or repeated contact with skin. Wash clothing before reuse.
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
Avoid runoff into storm sewers and ditches which lead to waterways. Clean up spills immediately, using the appropriate protective equipment. Sweep up, then place into a suitable container for disposal. Avoid generating dusty conditions. Remove all sources of ignition.
Disposal code
9
Stability
Stable under normal shipping and handling conditions.
Incompatibilities
Strong oxidizing agents; Strong bases; Reducing agents.
Decomposition
Nitrogen oxides, carbon monoxide, carbon dioxide.

Fire.
Flash Point,°C
106
Autoignition, °C
456
Upper exp. limit, %
7.6
Lower exp. limit, %
1.6
Fire fighting
Do not extinguish fire unless flow can be stopped. Use water in flooding quantities as fog. Cool all affected containers with flooding quantities of water. Apply water from as far a distance as possible. Solid streams of water may be ineffective. Use foam, dry chemical, or carbon dioxide.
Fire potential
Slightly flammable. Combustible.
Hazards
Containers may explode when heated.
Combustion products
Yields toxic oxides of nitrogen when burning.
Health
3
 
Flammability
1
 
 
Reactivity
1
 

Health.
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
Exposure effects
Effects may be delayed.
   Ingestion
Causes gastrointestinal irritation with nausea, vomiting and diarrhea. May cause central nervous system depression, characterized by excitement, followed by headache, dizziness, drowsiness, and nausea. Advanced stages may cause collapse, unconsciousness, coma and possible death due to respiratory failure. May be harmful if swallowed.
   Inhalation
Harmful if inhaled. Inhalation of high concentrations may cause central nervous system effects characterized by headache, dizziness, unconsciousness and coma. May cause respiratory tract irritation.
   Skin
Causes skin irritation. May be harmful if absorbed through the skin.
   Eyes
May cause eye irritation and possible burns.

First aid
 
   Ingestion
Do NOT induce vomiting. 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.
   Inhalation
Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid. DO NOT use mouth-to-mouth respiration.
   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. Remove contaminated clothing and shoes.
   Eyes
Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.

Transport.
UN number
1664
Response guide
Hazard class
6.1
Packing Group
II
 
USCG CHRIS Code
NTT
 
42 Nitrocompounds
HS Code
2904 20 00
 
Std. Transport #
4960123
 
IMO Chemical Code
17
IMO Pollution Category
B
IMO Hazard code
S/P