CYANAMIDE 11S00000 CYANAMIDE 0424
November 2007
CAS No: 420-04-2 Carbamonitrile
RTECS No: GS5950000 Hydrogen cyanamide
UN No: 2811 Carbodiimide
EC No: 615-013-00-2 Carbimide
Cyanogenamide
Amidocyanogen
CH2N2 / H2NCN
Molecular mass: 42.0
TYPES OF
ACUTE HAZARDS/SYMPTOMS PREVENTION FIRST AID/FIRE FIGHTING
HAZARD/
EXPOSURE
FIRE Combustible only at increased NO open flames. Carbon dioxide. Dry powder. Dry sand.
temperature. Gives off irritating or toxic water spray,
fumes (or gases) in a fire.
EXPLOSION Combat fire from a sheltered position.
EXPOSURE PREVENT DISPERSION OF DUST! IN ALL CASES CONSULT A DOCTOR!
AVOID ALL CONTACT!
Inhalation Cough. Shortness of breath. Local exhaust or breathing protection. Fresh air, rest. Seek medical attention if
you feel unwell
Skin MAY BE ABSORBED! 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. First rinse with plenty of water for several
minutes (remove contact lenses if easily
possible), then take to a doctor.
Ingestion Burning sensation. Sore throat. Do not eat, drink, or smoke during work. Rinse mouth. Give one or two glasses of
Abdominal pain. Wash hands before eating. water to drink. Do NOT induce vomiting.
Refer for medical attention.
SPILLAGE DISPOSAL PACKAGING & LABELLING
Personal protection: complete protective clothing including EU classification Airtight. Do not transport with food and
self-contained breathing apparatus. Vacuum spilled material. T Symbol feedstuffs.
Carefully collect remainder, then remove to safe place. Do R: 21-25-36/38-43
NOT let this chemical enter the environment. S: (1/2-)3-22-36/37-45
UN classification
UN Hazard Class: 6.1
UN Pack Group: III
GHS classification
Signal: Danger
Skull-Health haz
Toxic if swallowed
Fatal in contact with skin
Causes skin irritation
Causes serious eye irritation
May cause allergic skin reaction
Suspected of damaging fertility or the
unborn child
Harmful to aquatic life
EMERGENCY RESPONSE SAFE STORAGE
Transport Emergency Card: TEC (R)-61GT1-III Separated from food and feedstuffs and incompatible materials. See Chemical Dangers.
Cool. Store at maximum 20 /C, never exceed 30 /C. Dry. Well closed. Keep in a
NFPA Code: H 4; F 1; R 3
well-ventilated room. Store only if stabilized. See Notes for optimal pH stabilization. Can
be stored in stainless steel, polyethylene and polypropylene.
Prepared in the context of cooperation between the International
IPCS Programme on Chemical Safety and the European Commission 漏
IPCS 2006
International
Programme on
SEE IMPORTANT INFORMATION ON THE BACK.
Chemical Safety
0424 CYANAMIDE 11S00000 CYANAMIDE
IMPORTANT DATA
Physical State; Appearance Routes of exposure
COLOURLESS, HYGROSCOPIC, DELIQUESCENT CRYSTALS. The substance can be absorbed into the body by inhalation of its aerosol,
through the skin and by ingestion.
Chemical dangers
Highly reactive compound. Can explode in vacuum distillation. The Inhalation risk
substance may polymerize spontaneously. Dimerizes at temperatures A harmful concentration of airborne particles can be reached quickly when
above 40 /C with strong heat release. Dimerization is catalyzed by traces dispersed, especially if powdered.
of bases. The substance decomposes on contact with acids, bases and
moisture producing toxic fumes, including ammonia, nitrogen oxides and Effects of short-term exposure
cyanides. Reacts with acids, strong oxidants, and strong reducing agents The substance is severely irritating to the eyes and the skin and is
causing explosion and toxic hazard. Attacks metal (e.g. steel, copper, irritating to the respiratory tract. See Notes.
aluminium).
Effects of long-term or repeated exposure
Occupational exposure limits Repeated or prolonged contact may cause skin sensitization. Animal
TLV: 2 mg/m3 as TWA; (ACGIH 2007). tests show that this substance possibly causes toxicity to human
EU OEL: 0.58 ppm 1 mg/m3 as TWA (skin) (EU 2006). reproduction or development.
PHYSICAL PROPERTIES
Boiling point at 0.067kPa: 83/C Solubility in water, g/100 ml at 25/C: 85
Melting point: 44/C Decomposes at 260 /C Vapour pressure, Pa at 20/C: 0.5
Relative density (water = 1): 1.28 Flash point: 141/C
ENVIRONMENTAL DATA
The substance is harmful to aquatic organisms. It is strongly advised that this substance does not enter the environment.
NOTES
Cyanamide has to be stabilized by pH-buffer against dimerization and decomposition.
An added stabilizer or inhibitor can influence the toxicological properties of this substance, consult an expert.
Cyanamide that has been stored for a long time or is contaminated, should be diluted with at least three times its volume of water to avoid critical
decomposition temperatures being reached.
Do NOT take working clothes home.
Term cyanamide is also used to designate calcium cyanamide.
In combination with even small amounts of alcohol the substance causes effects on cardiovascular and central nervous systems resulting in flushing,
palpitation, hypotension and hyperventilation.
ADDITIONAL INFORMATION
Neither the EC nor the IPCS nor any person acting on behalf of the EC or the IPCS is responsible
LEGAL NOTICE for the use which might be made of this information
漏IPCS 2006
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