Hydrazine
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CAS
302-01-2
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H2NNH2
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RTECS
MU7175000
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Synonyms & Trade Names
Diamine, Hydrazine (anhydrous), Hydrazine base
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DOT ID & Guide
2029 / 132 (anhydrous)
3293 / 152 (< or =37% solution)
2030 / 153 (37-64% solution)
2029 / 132 (>64% solution)
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Exposure
Limits
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NIOSH REL: Ca C 0.03 ppm (0.04 mg/m3) [2-hour] See Appendix A
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OSHA PEL†: TWA 1 ppm (1.3 mg/m3) [skin]
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IDLH
Ca [50 ppm]
See: 302012
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Conversion
1 ppm = 1.31 mg/m3
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Physical Description
Colorless, fuming, oily liquid with an ammonia-like odor. [Note: A solid below 36°F.]
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MW: 32.1
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BP: 236°F
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FRZ: 36°F
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Sol: Miscible
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VP: 10 mmHg
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IP: 8.93 eV
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Sp.Gr: 1.01
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Fl.P: 99°F
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UEL: 98%
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LEL: 2.9%
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Class IC Flammable Liquid: Fl.P. at or above 73°F and below 100°F.
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Incompatibilities & Reactivities
Oxidizers, hydrogen peroxide, nitric acid, metallic oxides, acids [Note: Can ignite SPONTANEOUSLY on contact with oxidizers or porous materials such as earth, wood & cloth.]
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Measurement Methods
NIOSH 3503; OSHA 20, 108
See: NMAM or OSHA Methods |
Personal Protection & Sanitation (See protection)
Skin: Prevent skin contact
Eyes: Prevent eye contact
Wash skin: When contaminated
Remove: When wet (flammable)
Change: No recommendation
Provide: Eyewash, Quick drench
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First Aid (See procedures)
Eye: Irrigate immediately
Skin: Water flush immediately
Breathing: Respiratory support
Swallow: Medical attention immediately
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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
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Exposure Routes
inhalation, skin absorption, ingestion, skin and/or eye contact
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Symptoms
Irritation eyes, skin, nose, throat; temporary blindness; dizziness, nausea; dermatitis; eye, skin burns; in animals: bronchitis, pulmonary edema; liver, kidney damage; convulsions; [potential occupational carcinogen]
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Target Organs
Eyes, skin, respiratory system, central nervous system, liver, kidneys
Cancer Site
[in animals: tumors of the lungs, liver, blood vessels & intestine]
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See also: INTRODUCTION
See ICSC CARD: 0281 See MEDICAL TESTS: 0115
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