Label abbreviations descriptions

DINITROTOLUENE†

Chemical Identification
CAS # 25321-14-6
Formula

C₇H₆N₂O₄
Synonyms

2,4-dinitrotoluene; dinitrotoluol; DNT; methyldinitrobenzene [note: various isomers of DNT exist]

Physical Properties
Physical description Orange-yellow crystalline solid with a characteristic odor.
Boiling point 572°F Molecular weight 182.2
Freezing point/melting point 158°F Vapor pressure 1 mmHg
Flash point 404°F Vapor density 6.3
Specific gravity 1.32 Ionization potential
Lower explosive limit (LEL) Upper explosive limit (UEL)
NFPA health rating 3 NFPA fire rating 1
NFPA reactivity rating 3 NFPA special instruction
Vapor hazard ratio (VHR)
Historical exceedance percentage
Target organs

Monitoring Methods Used by OSHA
Analyte code (IMIS no.) 0990
Sampling group
Sampler/Sampling media OSHA versatile sampler (OVS-Tenax®) - 13 mm Tenax® tube (140/70 mg) with GFF enclosed [SKC 226-56]
Sampling time*

60 min
Sampling volume (TWA)*

60 L
Sampling flow rate (TWA)*

1 L/min
Sampling volume (STEL/Peak/C)*
Sampling flow rate (STEL/Peak/C)*
Analytical method instruments GC-TEA
Method reference OSHA 44 (fully validated)
Notes

Lab modification of sample tube consists of an 8mm GFF disc placed inside tube ahead of first resin bed.
Special requirements

* All sampling instructions above are recommended guidelines for OSHA Compliance Safety and Health Officers (CSHOs), please see the corresponding OSHA method reference for complete details.

Bulk/Wipe Method
Wipe Sampler/Sampling media
Bulk Method

On-Site Screening Techniques
Device
Model/Type
Sampling information
(see manufacturer instructions)

Exposure Limits
OSHA PEL
8-hour TWA
(ST) STEL
(C) Ceiling
Peak
NIOSH REL
Up to 10-hour TWA
(ST) STEL
(C) Ceiling
ACGIH TLV©
8-hour TWA
(ST) STEL
(C) Ceiling
CAL/OSHA PEL
8-hour TWA
(ST) STEL
(C) Ceiling
Peak
PEL-TWA

1.5 mg/m³

 REL-TWA

1.5 mg/m³

 TLV-TWA

0.2 mg/m³ [1993]

 PEL-TWA

0.15 ppm (1 mg/m³)
PEL-STEL REL-STEL TLV-STEL PEL-STEL
PEL-C REL-C TLV-C PEL-C
Skin notation

Y

 Skin notation

Y

 Skin notation

Y

 Skin notation

Y
Notes:

See 29 CFR 1910.1000 Table Z-1.

 Notes:

CARCINOGEN (Ca): REDUCE EXPOSURE TO LOWEST FEASIBLE CONCENTRATION. See Appendix A, NIOSH Potential Occupational Carcinogens.

 Notes:

BEI®

 Notes:
Health factors:  See NIH-NLM PubChem. IDLH

50 mg/m³
Carcinogenic classifications: NIOSH-Ca, TLV-A3, EPA-B2 Notes:

Ca
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:

Additional Resources and Literature References

Last Updated Date : 12/28/2020