International Chemical Safety Cards

DICYANDIAMIDE ICSC: 0650
DICYANDIAMIDE
Dicyanodiamide
Cyanoguanidine
Dicyanediamide
NH2(NH)CNHCN / C2H4N4
Molecular mass: 84.1
CAS # 461-58-5
RTECS # ME9950000
ICSC # 0650
TYPES OF
HAZARD/
EXPOSURE 		ACUTE HAZARDS/
SYMPTOMS 		PREVENTION FIRST AID/
FIRE FIGHTING
FIRE Not combustible. Gives off irritating or toxic fumes (or gases) in a fire.

In case of fire in the surroundings: all extinguishing agents allowed.
EXPLOSION


EXPOSURE
PREVENT DISPERSION OF DUST!

  • INHALATION

    		• Local exhaust.
    		Fresh air, rest.
  • SKIN

    		• Protective gloves.
    		Rinse skin with plenty of water or shower.
  • EYES

    		• Safety spectacles.
    		First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
  • INGESTION


    		• Rinse mouth. Give plenty of water to drink.
    SPILLAGE DISPOSAL STORAGE PACKAGING & LABELLING
    Sweep spilled substance into sealable containers; if appropriate, moisten first to prevent dusting. Then remove to safe place.
    		Separated from strong oxidants, strong acids.

    SEE IMPORTANT INFORMATION ON BACK
    ICSC: 0650 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

    DICYANDIAMIDE ICSC: 0650

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    A
    PHYSICAL STATE; APPEARANCE:
     WHITE CRYSTALLINE POWDER.

    PHYSICAL DANGERS:

    CHEMICAL DANGERS:
     The substance decomposes on heating producing toxic gases including ammonia. See ICSC # 0414. Reacts violently with strong oxidants, such as ammonium nitrate causing fire and explosion hazard. Reacts with acids to form toxic gases including hydrogen cyanide. See ICSC # 0492.

    OCCUPATIONAL EXPOSURE LIMITS (OELs):
     TLV not established.


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




    EFFECTS OF SHORT-TERM EXPOSURE:


    PHYSICAL
    PROPERTIES
    Melting point: 211°C
    Density: 1.4 mg/cm
    		Solubility in water, g/100 ml at 25°C: 4.13
    Octanol/water partition coefficient as log Pow: -1.5 (estimated)
    ENVIRONMENTAL
    DATA
    N O T E S
    In solution the substance decomposes above 80°C yielding ammonia (see ICSC # 0414).
    ADDITIONAL INFORMATION


    ICSC: 0650 DICYANDIAMIDE
    © 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.