International Chemical Safety Cards

1,1-DIMETHYLHYDRAZINE ICSC: 0147
1,1-DIMETHYLHYDRAZINE
Dimethylhydrazine
N,N-Dimethylhydrazine
C2H8N2/NH2-N(CH3)2
Molecular mass: 60.1
CAS # 57-14-7
RTECS # MV2450000
ICSC # 0147
UN # 1163
EC # 007-012-00-5
TYPES OF
HAZARD/
EXPOSURE
ACUTE HAZARDS/
SYMPTOMS
PREVENTION FIRST AID/
FIRE FIGHTING
FIRE Highly flammable. Gives off irritating or toxic fumes (or gases) in a fire.
NO open flames, NO sparks, and NO smoking. NO contact with oxidizing agents.
Powder, alcohol-resistant foam, water in large amounts, carbon dioxide.
EXPLOSION Vapour/air mixtures are explosive. Risk of fire and explosion.
Closed system, ventilation, explosion-proof electrical equipment and lighting. Do NOT use compressed air for filling, discharging, or handling.
In case of fire: keep drums, etc., cool by spraying with water.
EXPOSURE
AVOID ALL CONTACT!
IN ALL CASES CONSULT A DOCTOR!
  • INHALATION
  • Burning sensation. Sore throat. Cough. Headache. Laboured breathing. Nausea. Abdominal cramps. Vomiting.
    Ventilation, local exhaust, or breathing protection.
    Fresh air, rest. Half-upright position. Refer for medical attention.
  • SKIN
  • MAY BE ABSORBED! Skin burns. Pain (Further see Inhalation).
    Protective gloves. Protective clothing.
    First rinse with plenty of water, then remove contaminated clothes and rinse again. Refer for medical attention.
  • EYES
  • Pain. Blurred vision. Severe deep burns. Permanent loss of vision.
    Face shield or eye protection in combination with breathing protection.
    First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
  • INGESTION
  • Convulsions (further see Inhalation).
    Do not eat, drink, or smoke during work. Wash hands before eating.
    Rinse mouth. Rest. Refer for medical attention.
    SPILLAGE DISPOSAL STORAGE PACKAGING & LABELLING
    Evacuate danger area! Consult an expert! Collect leaking and spilled liquid in sealable non-plastic containers as far as possible. Absorb remaining liquid in sand or inert absorbent and remove to safe place. Do NOT absorb in saw-dust or other combustible absorbents. Do NOT let this chemical enter the environment (extra personal protection: complete protective clothing including self-contained breathing apparatus).
    Fireproof. Provision to contain effluent from fire extinguishing. Separated from strong oxidants, strong acids. Keep in the dark. Do not store in copper or in alloys high in copper or in plastic.
    Unbreakable packaging; put breakable packaging into closed unbreakable container.
    F symbol
    T symbol
    R: 45-11-23/25-34
    S: 53-45
    Note: E
    UN Hazard Class: 6.1
    UN Subsidiary Risks: 3, 8
    UN Packing Group: I
    SEE IMPORTANT INFORMATION ON BACK
    ICSC: 0147 Prepared in the context of cooperation between the International Programme on Chemical Safety & the Commission of the European Communities © IPCS CEC 1993

    International Chemical Safety Cards

    1,1-DIMETHYLHYDRAZINE ICSC: 0147

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    PHYSICAL STATE; APPEARANCE:
    COLOURLESS FUMING AND HYGROSCOPIC LIQUID , WITH PUNGENT ODOUR. TURNS YELLOW ON EXPOSURE TO AIR.

    PHYSICAL DANGERS:
    The vapour is heavier than air and may travel along the ground; distant ignition possible.

    CHEMICAL DANGERS:
    The substance may spontaneously ignite on contact with air. On combustion, forms toxic and/or flammable fumes including nitrogen oxides, hydrogen, ammonia, dimethylamine and hydrazoic acid. The substance is a strong reducing agent and reacts violently with oxidants like nitrogen tetroxide, hydrogen peroxide and nitric acid. The substance is a strong base, it reacts violently with acid and is corrosive. Reacts with oxygen causing fire and explosion hazard. Attacks plastic.

    OCCUPATIONAL EXPOSURE LIMITS (OELs):
    TLV: 0.5 ppm; 1.2 mg/m3 (A2) (skin) (ACGIH 1991-1992).


    ROUTES OF EXPOSURE:
    The substance can be absorbed into the body by inhalation, through the skin and by ingestion.

    INHALATION RISK:
    A harmful contamination of the air can be reached very quickly on evaporation of this substance at 20°C.

    EFFECTS OF SHORT-TERM EXPOSURE:
    The substance is corrosive to the eyes, the skin and the respiratory tract. Inhalation of the vapour may cause lung oedema (see Notes). The substance may cause effects on the central nervous system and liver , resulting in respiratory failure and liver impairment. Exposure to the vapour may result in death.

    EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
    The substance may have effects on the nervous system, liver and blood. This substance is possibly carcinogenic to humans.
    PHYSICAL
    PROPERTIES
    Boiling point: 63°C
    Melting point: -58°C
    Relative density (water = 1): 0.8
    Solubility in water: Very good
    Vapour pressure, kPa at 20°C: 16.4
    Relative vapour density (air = 1): 2.1
    Relative density of the vapour/air-mixture at 20°C (air = 1): 1.2
    Flash point: -15°C c.c.
    Auto-ignition temperature: 249°C
    Explosive limits, vol% in air: 2-95
    Octanol/water partition coefficient as log Pow: -1.9
    ENVIRONMENTAL
    DATA
    This substance may be hazardous to the environment; special attention should be given to fish.
    N O T E S
    Depending on the degree of exposure, periodic medical examination is indicated. The symptoms of lung oedema often do not become manifest until a few hours have passed and they are aggravated by physical effort. Rest and medical observation are therefore essential. Immediate administration of an appropriate spray, by a doctor or a person authorized by him/her, should be considered. The odour warning when the exposure limit value is exceeded is insufficient. Rinse contaminated clothes (fire hazard) with plenty of water. Aerozine-50 and Dimazine are trade names.
    Transport Emergency Card: TEC (R)-30G31
    NFPA Code: H 3; F 3; R 1;
    ADDITIONAL INFORMATION


    ICSC: 0147 1,1-DIMETHYLHYDRAZINE
    © IPCS, CEC, 1993
    IMPORTANT LEGAL NOTICE: Neither the CEC or the IPCS nor any person acting on behalf of the CEC or the IPCS is responsible for the use which might be made of this information. This card contains the collective views of the IPCS Peer Review Committee and may not reflect in all cases all the detailed requirements included in national legislation on the subject. The user should verify compliance of the cards with the relevant legislation in the country of use.