HYDRAZINE EMERGENCY RESPONSE PROCEDURES
Hydrazine can be absorbed into the body in harmful or fatal amounts by ingestion, inhalation, or
skin contact. Contact can cause extensive irritation or burns to the skin and eyes. Exposure to
large single doses or small repeated doses of hydrazine may cause death, temporary blindness,
dizziness, nausea, or damage to internal organs, including the central nervous system, liver,
kidneys, lungs, or blood forming system. Hydrazine has been demonstrated to cause cancer in
laboratory animals. It may cause cancer in humans. It may cause fetal malformations following
exposure by pregnant women.
EXPOSURE GUIDE LINES
ACGIH
TLV 0.01 ppm 0.013 mg/m3A3 Confirmed animal carcinogen with unknown relevance to
humans. SKIN annotation
OSHA
PEL 1 ppm 1.3 mg/m3SKIN annotation
NIOSH
STEL 0.03 C ppm 0.04 C mg/m3 (120 minute exposure) Carcinogenic
Reportable spills of hydrazine will be handled by the Emergency Response Team.
Minimum PPE for Hydrazine response includes:
FULL NEOPRENE BOOTS WITH OVERBOOTS
KAPPLER CPF 2 (or higher) SUITS, with hoods up or KAPPLER Level A suit
BUTYL GLOVES with SOLVEX(TM) GLOVES AND N-DEX(TM)UNDERLINERS
SCBA
HARD HAT WITH FACE SHIELD
PROCEDURES
Spilled hydrazine will be washed into a waste water treatment system, if possible. The area and
all responders exiting the hot zone will be decontaminated by spraying with bleach, followed by
clean water.
If it is not possible to wash the hydrazine into a waste water treatment system, then all excess
hydrazine solution will be pumped or otherwise transferred into a polyethylene drum or other
suitable container. All remaining hydrazine will be treated as follows:
1. Dilute spill to under 10% hydrazine. For hydrazine (100%) and hydrazine hydrate (64%) a
10:1 dilution is needed. For 35% hydrazine, a 4:1 dilution is needed.
2. For every gallon of diluted material, slowly add six (6) gallons of commercial bleach (5%
sodium hypochlorite). Add sufficient bleach until all bubbling action ceases.
3. Dispose of all residue in accordance with applicable Federal, State, and local hazardous waste
regulations.
Inspect affected area using an appropriate detector system prior to allowing occupancy by area
workers.
ANHYDROUS HYDRAZINE
Be prepared for spontaneous ignition. Hydrazine fires should be fought with a water fog from a
safe distance.
Anhydrous hydrazine can be rendered non-flammable by dilution. It can be neutralized as described above.