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Phenylhydrazine

Synonyms & Trade Names
Hydrazinobenzene, Monophenylhydrazine
CAS No.
100-63-0
RTECS No.
MV8925000
DOT ID & Guide
2572 153
Formula
C6H5NHNH2
Conversion
1 ppm = 4.42 mg/m3
IDLH
Ca [15 ppm]
See: 100630
Exposure Limits
NIOSH REL
: Ca C 0.14 ppm (0.6 mg/m3) [2-hr] [skin] See Appendix A
OSHA PEL
†: TWA 5 ppm (22 mg/m3) [skin]
Measurement Methods

NIOSH 3518
See: NMAM or OSHA Methods
Physical Description
Colorless to pale-yellow liquid or solid (below 67°F) with a faint, aromatic odor.
MW:
108.1
BP:
470°F (Decomposes)
FRZ:
67°F
Sol:
Slight		 VP(77°F): 0.04 mmHg
IP:
7.64 eV
Sp.Gr:
1.10
Fl.P:
190°F
UEL:
?
LEL:
?
Class IIIA Combustible Liquid: Fl.P. at or above 140°F and below 200°F. Combustible Solid
Incompatibilities & Reactivities
Strong oxidizers, lead dioxide
Exposure Routes
inhalation, skin absorption, ingestion, skin and/or eye contact
Symptoms
Skin sensitization, hemolytic anemia, dyspnea (breathing difficulty), cyanosis; jaundice; kidney damage; vascular thrombosis; [potential occupational carcinogen]
Target Organs
Blood, respiratory system, liver, kidneys, skin
Cancer 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

Important additional information about respirator selection

See also: INTRODUCTION   See ICSC CARD: 0938   See MEDICAL TESTS: 0184
 

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