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| Methyl hydrazine | CAS 60-34-4 | ||
| CH3NHNH2 | RTECS MV5600000 | ||
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Synonyms & Trade Names MMH, Monomethylhydrazine |
DOT ID & Guide 1244 131 |
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Exposure Limits |
NIOSH REL: Ca C 0.04 ppm (0.08 mg/m3) [2-hr] See Appendix A | ||
| OSHA PEL: C 0.2 ppm (0.35 mg/m3) [skin] | |||
| IDLH Ca [20 ppm] | Conversion 1 ppm = 1.89 mg/m3 | ||
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Physical Description Fuming, colorless liquid with an ammonia-like odor. |
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MW: 46.1 |
BP: 190°F |
FRZ: -62°F |
Sol: Miscible |
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VP: 38 mmHg |
IP: 8.00 eV |
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Sp.Gr(77°F): 0.87 |
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Fl.P: 17°F |
UEL: 92% |
LEL: 2.5% |
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| Class IB Flammable Liquid: Fl.P. below 73�F and BP at or above 100�F. | |||
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Incompatibilities & Reactivities Oxides of iron; copper; manganese; lead; copper alloys; porous materials such as earth, asbestos, wood & cloth; strong oxidizers such as fluorine & chlorine; nitric acid; hydrogen peroxide |
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Measurement Methods NIOSH 3510 |
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Personal Protection & Sanitation Skin: Prevent skin contact Eyes: Prevent eye contact Wash skin: When contaminated Remove: When wet (flammable) Change: No recommendation Provide: Eyewash, Quick drench |
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 |
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| Exposure Routes inhalation, skin absorption, ingestion, skin and/or eye contact | |
| Symptoms Irritation eyes, skin, respiratory system; vomiting, diarrhea, tremor, ataxia; anoxia, cyanosis; convulsions; [potential occupational carcinogen] | |
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Target Organs
Eyes, skin, respiratory system, central nervous system, liver, blood, cardiovascular system Cancer Site [in animals: lung, liver, blood vessel & intestine tumors] |
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| See also: INTRODUCTION |