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NIOSH

p-NITROTOLUENE

ICSC: 0932

4-Nitrotoluene
1-Methyl-4-nitrobenzene
p-Methylnitrobenzene
PNT
C7H7NO2 / C6H4(CH3)NO2
Molecular mass: 137.1
ICSC # 0932 		CAS # 99-99-0
RTECS # XT3325000
UN # 1664
EC # 609-006-00-3
April 13, 2000 Validated

TYPES OF HAZARD/ EXPOSURE

ACUTE HAZARDS/ SYMPTOMS

PREVENTION

FIRST AID/
FIRE FIGHTING

FIRE Combustible.
NO open flames. NO contact with oxidants.
Powder, water spray, foam, carbon dioxide.
EXPLOSION Risk of fire and explosion on contact withacid(s),oxidants.

In case of fire: keep drums, etc., cool by spraying with water.
EXPOSURE
PREVENT DISPERSION OF DUST! STRICT HYGIENE!

•INHALATION Headache. Blue lips or finger nails. Blue skin. Dizziness. Laboured breathing.
Local exhaust or breathing protection.
Fresh air, rest. Artificial respiration may be needed. Refer for medical attention.
•SKIN MAY BE ABSORBED! (Further see Inhalation).
Protective gloves. Protective clothing.
Rinse and then wash skin with water and soap. Refer for medical attention. Wear protective gloves when administering first aid.
•EYES Redness. Pain.
Safety goggles face shield or eye protection in combination with breathing protection.
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
•INGESTION Abdominal pain. (Further see Inhalation).
Do not eat, drink, or smoke during work. Wash hands before eating.
Rinse mouth. Refer for medical attention.

SPILLAGE DISPOSAL

STORAGE

PACKAGING & LABELLING

Sweep spilled substance into containers. Carefully collect remainder, then remove to safe place. Do NOT let this chemical enter the environment. Chemical protection suit including self-contained breathing apparatus.
Separated from food and feedstuffs . See Chemical Dangers. Well closed.
Do not transport with food and feedstuffs.
Marine pollutant.
Note: C
T symbol
N symbol
R: 23/24/25-33-51/53
S: 1/2-28-37-45-61
UN Hazard Class: 6.1
UN Packing Group: II
ICSC: 0932 Prepared in the context of cooperation between the International Programme on Chemical Safety & the Commission of the European Communities (C) IPCS CEC 1994. No modifications to the International version have been made except to add the OSHA PELs, NIOSH RELs and NIOSH IDLH values.

p-NITROTOLUENE

ICSC: 0932

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PHYSICAL STATE; APPEARANCE:
COLOURLESS TO YELLOW CRYSTALS , WITH CHARACTERISTIC ODOUR.

PHYSICAL DANGERS:


CHEMICAL DANGERS:
The substance decomposes on heating producing toxic fumes ( nitrogen oxides ). Reacts violently with strong oxidizers or sulfuric acid causing fire and explosion hazard. Attacks some forms of plastic, rubber, and coatings.

OCCUPATIONAL EXPOSURE LIMITS:
TLV: 2 ppm as TWA; (skin); BEI issued (ACGIH 2005).
MAK: skin absorption (H);
Carcinogen category: 3B
(DFG 2008).
OSHA PEL†: TWA 5 ppm (30 mg/m3) skin
NIOSH REL: TWA 2 ppm (11 mg/m3) skin
NIOSH IDLH: 200 ppm See: IDLH INDEX


ROUTES OF EXPOSURE:
The substance can be absorbed into the body by inhalation of its aerosol, through the skin and by ingestion.

INHALATION RISK:
Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly when dispersed, especially if powdered.

EFFECTS OF SHORT-TERM EXPOSURE:
The substance is irritating to the eyes . The substance may cause effects on the blood , resulting in formation of methaemoglobin. The effects may be delayed. Medical observation is indicated.

EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
The substance may have effects on the blood, liver and testes.

PHYSICAL
PROPERTIES

Boiling point: 238°C
Melting point: 53-54°C
Density: 1.29
g/cm3
Solubility in water, g/100 ml at 20°C: 0.035
Vapour pressure, kPa at 20°C: 0.016
Relative vapour density (air = 1): 4.72
Flash point:
103°C c.c.
Auto-ignition temperature: 450°C
Octanol/water partition coefficient as log Pow: 2.41

ENVIRONMENTAL
DATA

The substance is toxic to aquatic organisms. The substance may cause long-term effects in the aquatic environment.

N O T E S

Specific treatment is necessary in case of poisoning with this substance; the appropriate means with instructions must be available. Depending on the degree of exposure, periodic medical examination is suggested.
Transport Emergency Card: TEC (R)-61S1664-S or 61GT2-II
NFPA Code: H 3; F 1; R 0;
Card has been partially updated in November 2008: see Occupational Exposure Limits.

ADDITIONAL INFORMATION



ICSC: 0932 p-NITROTOLUENE
(C) IPCS, CEC, 1994
IMPORTANT LEGAL NOTICE: Neither NIOSH, the CEC or the IPCS nor any person acting on behalf of NIOSH, the CEC or the IPCS is responsible for the use which might be made of this information. This card contains the collective views of the IPCS Peer Review Committee and may not reflect in all cases all the detailed requirements included in national legislation on the subject. The user should verify compliance of the cards with the relevant legislation in the country of use. The only modifications made to produce the U.S. version is inclusion of the OSHA PELs, NIOSH RELs and NIOSH IDLH values.
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