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Dinitrotoluene

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Synonyms & Trade Names
Dinitrotoluol, DNT, Methyldinitrobenzene [Note: Various isomers of DNT exist.]
CAS No.
25321-14-6
RTECS No.
XT1300000
DOT ID & Guide
1600 152(molten)
2038 152(solid)
Formula
CH₃C₆H₃(NO₂)₂
Conversion
IDLH
Ca [50 mg/m3]
See: 25321146
Exposure Limits
NIOSH REL
Ca TWA 1.5 mg/m3 [skin] See Appendix A
OSHA PEL
TWA 1.5 mg/m3 [skin]
Measurement Methods
OSHA 44
See: NMAM or OSHA Methods
Physical Description
Orange-yellow crystalline solid with a characteristic odor. [Note: Often shipped molten.]
Molecular Weight
182.2
Boiling Point
572°F
Melting Point
158°F
Solubility
Insoluble
Vapor Pressure
1 mmHg
Ionization Potential
?
Specific Gravity
1.32
Flash Point
404°F
Upper Explosive Limit
?
Lower Explosive Limit
?
Combustible Solid, but difficult to ignite.
Incompatibilities & Reactivities
Strong oxidizers, caustics, metals such as tin & zinc [Note: Commercial grades will decompose at 482°F, with self-sustaining decomposition at 536°F.]
Exposure Routes
inhalation, skin absorption, ingestion, skin and/or eye contact
Symptoms
Anoxia, cyanosis; anemia, jaundice; reproductive effects; [potential occupational carcinogen]
Target Organs
Blood, liver, cardiovascular system, reproductive system
Cancer Site
[in animals: liver, skin & kidney tumors]
Personal Protection/Sanitation
(See protection codes)
Skin:Prevent skin contact
Eyes:Prevent eye contact
Wash skin:When contaminated/Daily
Remove:When wet or contaminated
Change:Daily
Provide:Quick drench
First Aid
(See procedures)
Eye:Irrigate immediately
Skin:Soap wash immediately
Breathing:Respiratory support
Swallow:Medical attention immediately
Respirator Recommendations

NIOSH

At concentrations above the NIOSH REL, or where there is no REL, at any detectable concentration:
(APF = 10,000) Any self-contained breathing apparatus that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode
(APF = 10,000) Any supplied-air respirator that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode in combination with an auxiliary self-contained positive-pressure breathing apparatus

Escape:
(APF = 50) Any air-purifying, full-facepiece respirator (gas mask) with a chin-style, front- or back-mounted organic vapor canister having an N100, R100, or P100 filter.
Click here for information on selection of N, R, or P filters.
Any appropriate escape-type, self-contained breathing apparatus

Important additional information about respirator selection

See also
INTRODUCTION   ICSC CARD: 0465
Page last reviewed: October 30, 2019
Content source: National Institute for Occupational Safety and Health