International Chemical Safety Cards

PHENYLHYDRAZINE ICSC: 0938
PHENYLHYDRAZINE
Hydrazinobenzene
Monophenylhydrazine
C6H8N2/C6H5NHNH2
Molecular mass: 108.1
CAS # 100-63-0
RTECS # MV8925000
ICSC # 0938
UN # 2572
EC # 612-023-00-9
TYPES OF
HAZARD/
EXPOSURE
ACUTE HAZARDS/
SYMPTOMS
PREVENTION FIRST AID/
FIRE FIGHTING
FIRE Combustible. Gives off irritating or toxic fumes (or gases) in a fire.
NO open flames.
Water spray, alcohol-resistant foam, powder, carbon dioxide.
EXPLOSION Above 88C explosive vapour/air mixtures may be formed.
Above 88C use a closed system, ventilation.
In case of fire: keep drums, etc., cool by spraying with water.
EXPOSURE
STRICT HYGIENE!

  • INHALATION
  • Cough. Laboured breathing. Sore throat. Cyanosis.
    Local exhaust or breathing protection.
    Fresh air, rest. Refer for medical attention.
  • SKIN
  • MAY BE ABSORBED! Dry skin. Redness. Pain.
    Protective gloves. Protective clothing.
    Remove contaminated clothes. Rinse skin with plenty of water or shower. Refer for medical attention.
  • EYES
  • Redness. Pain.
    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
  • Abdominal pain. Diarrhoea. Nausea. Vomiting. Weakness. Vertigo.
    Do not eat, drink, or smoke during work.
    Rest. Refer for medical attention.
    SPILLAGE DISPOSAL STORAGE PACKAGING & LABELLING
    If the substance is melted: collect leaking and spilled liquid in sealable containers as far as possible, absorb remaining liquid in sand or inert absorbent and remove to safe place, do NOT wash away into sewer. If the substance is solid: sweep spilled substance into container, carefully collect remainder, then remove to a safe place (extra personal protection: complete protective clothing including self-contained breathing apparatus).
    Separated from strong oxidants, food and feedstuffs. Cool. Keep in the dark.
    Airtight. Do not transport with food and feedstuffs.
    T symbol
    R: 23/24/25-36
    S: (1/2)28-44
    UN Hazard Class: 6.1
    UN Packing Group: II
    SEE IMPORTANT INFORMATION ON BACK
    ICSC: 0938 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

    PHENYLHYDRAZINE ICSC: 0938

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    PHYSICAL STATE; APPEARANCE:
    COLOURLESS TO YELLOW OILY LIQUID OR CRYSTALS. TURNS BROWN RED ON EXPOSURE TO AIR AND LIGHT.

    PHYSICAL DANGERS:


    CHEMICAL DANGERS:
    The substance decomposes on heating and on burning producing toxic fumes including nitrogen oxides. Reacts with oxidants. Reacts violently with lead dioxide.

    OCCUPATIONAL EXPOSURE LIMITS (OELs):
    TLV: 0.1 ppm; 0.44 mg/m3 A2 (skin) (ACGIH 1992-1993).


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

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

    EFFECTS OF SHORT-TERM EXPOSURE:
    The substance irritates the eyes, the skin, the respiratory tract. The substance may cause effects on the blood , resulting in hemolysis, kidney impairment, liver impairment. The effects may be delayed. Medical observation is indicated.

    EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
    Repeated or prolonged contact with skin may cause dermatitis. Repeated or prolonged contact may cause skin sensitization. The substance may have effects on the blood , resulting in anaemia.
    PHYSICAL
    PROPERTIES
    Boiling point (decomposes): 243.5C
    Melting point: 19.5C
    Relative density (water = 1): 1.09
    Solubility in water: poor
    Vapour pressure, Pa at 71.8C: 133
    Relative vapour density (air = 1): 3.7
    Flash point: 88C c.c.
    Auto-ignition temperature: 174C
    Octanol/water partition coefficient as log Pow: 1.25
    ENVIRONMENTAL
    DATA

    N O T E S
    The ACGIH A2 notation indicates a suspected human carcinogen. The symptoms of hemolysis do not become manifest until hours have passed.
    Transport Emergency Card: TEC (R)-61 G06b
    NFPA Code: H3; F2; R0;
    ADDITIONAL INFORMATION


    ICSC: 0938 PHENYLHYDRAZINE
    © 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.