# NIOSH Pocket Guide to Chemical Hazards
N-Phenyl-beta-naphthylamine | CAS 135-88-6
C10H7NHC6H5 | RTECS QM4550000
Synonyms & Trade Names 2-Anilinonaphthalene, beta-Naphthylphenylamine, PBNA, 2-Phenylaminonaphthalene, Phenyl-beta-naphthylamine | DOT ID & Guide
Exposure Limits | NIOSH REL: Ca* See Appendix A [*Note: Since metabolized to beta-Naphthylamine.]
OSHA PEL: none
IDLH Ca [N.D.] | Conversion
Physical Description White to yellow crystals or gray to tan flakes or powder. [Note: Commercial product may contain 20-30 ppm of beta-Naphthylamine.]
MW: 219.3 | BP: 743°F | MLT: 226°F | Sol: Insoluble
VP: ? | IP: ? |  | Sp.Gr: 1.24
Fl.P: ? | UEL: ? | LEL: ? |
Combustible Solid
Incompatibilities & Reactivities Oxidizers
Measurement Methods OSHA 96
Personal Protection & Sanitation Skin: Prevent skin contact Eyes: Prevent eye contact Wash skin: When contaminated/Daily Remove: When wet or contaminated Change: Daily Provide: Eyewash, 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 a high-efficiency particulate filter/Any appropriate escape-type, self-contained breathing apparatus
Exposure Routes inhalation, skin absorption, ingestion, skin and/or eye contact
Symptoms Irritation; leucoplakia; acne, hypersensitivity to sunlight; [potential occupational carcinogen]
Target Organs Eyes, skin, bladder Cancer Site [bladder cancer]
See also: INTRODUCTION