Label abbreviations descriptions

M-PHENYLENEDIAMINE (1,3-PHENYLENEDIAMINE)

Chemical Identification
CAS # 108-45-2
Formula

C₆H₈N₂
Synonyms

3-aminoaniline; m-benzenediamine; 1,3-benzenediamine; m-diaminobenzene; 1,3-diaminobenzene; 1,3-phenylenediamine; Developer C; Developer H; Developer M; Direct Brown GG; Direct Brown B

Physical Properties
Physical description Colorless or white colored needles that turn red or purple in air.
Boiling point 540-543°F Molecular weight 108.14
Freezing point/melting point 145-147°F Vapor pressure 1 mmHg at 211.6°F, 0.0018 mmHg at 77°F
Flash point 280°F Vapor density 3.7
Specific gravity 1.0696 at 136°F Ionization potential
Lower explosive limit (LEL) Upper explosive limit (UEL)
NFPA health rating NFPA fire rating
NFPA reactivity rating NFPA special instruction
Vapor hazard ratio (VHR)
Historical exceedance percentage
Target organs

Monitoring Methods Used by OSHA
Analyte code (IMIS no.) P236
Sampling group
Sampler/Sampling media 2 GFFs (37 mm) coated with sulfuric acid, in 3-piece cassette, separated by the ring section [SKC 225-9004]
Sampling time*

100 min
Sampling volume (TWA)*

100 L
Sampling flow rate (TWA)*

1 L/min
Sampling volume (STEL/Peak/C)*
Sampling flow rate (STEL/Peak/C)*
Analytical method instruments HPLC
Method reference OSHA 87 (fully validated)
Notes

Filters may be obtained by OSHA personnel from the SLTC. 
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 REL-TWA TLV-TWA

0.1 mg/m³ [1988]

 PEL-TWA
PEL-STEL REL-STEL TLV-STEL PEL-STEL
PEL-C REL-C TLV-C PEL-C
Skin notation

NA

 Skin notation

NA

 Skin notation

N

 Skin notation

NA
Notes:

Not established

 Notes:

Not established

 Notes: Notes:

Not established
Health factors:  See NIH-NLM PubChem. IDLH
Carcinogenic classifications: TLV-A4, IARC-3 Notes:
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:

Additional Resources and Literature References

Last Updated Date : 01/05/2021