Phenylhydrazine
Synonyms & Trade Names
Hydrazinobenzene, MonophenylhydrazineExposure Limits
NIOSH REL
Ca C 0.14 ppm (0.6 mg/m3) [2-hr] [skin] See Appendix AOSHA PEL
TWA 5 ppm (22 mg/m3) [skin] See Appendix GPhysical Description
Colorless to pale-yellow liquid or solid (below 67°F) with a faint, aromatic odor.Molecular Weight
108.1Boiling Point
470°F (Decomposes)Freezing Point
67°FSolubility
SlightVapor Pressure
(77°F): 0.04 mmHgIonization Potential
7.64 eVSpecific Gravity
1.10Flash Point
190°FUpper Exposive Limit
?Lower Explosive Limit
?
Class IIIA Combustible Liquid: Fl.P. at or above 140°F and below 200°F. Combustible Solid
Incompatibilities & Reactivities
Strong oxidizers, lead dioxideExposure Routes
inhalation, skin absorption, ingestion, skin and/or eye contactSymptoms
Skin sensitization, hemolytic anemia, dyspnea (breathing difficulty), cyanosis; jaundice; kidney damage; vascular thrombosis; [potential occupational carcinogen]Target Organs
Blood, respiratory system, liver, kidneys, skinCancer Site
[in animals: tumors of the lungs, liver, blood vessels & intestine]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: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:
Any appropriate escape-type, self-contained breathing apparatus
- Page last reviewed:April 11, 2016
- Page last updated:April 11, 2016
- Content source:
- National Institute for Occupational Safety and Health (NIOSH) Education and Information Division