| Product Identification | Back to Contents | 【Product Name】
Dicyanodiamide | 【Synonyms】
Cyanoguanidine
Dicyanediamide
Dicyanodiamide | 【CAS】
461-58-5 | 【Formula】
C2H4N4 | 【Molecular Weight】
84.08 | 【EINECS】
207-312-8 | 【RTECS】
ME9950000 | 【RTECS Class】
Other | 【Merck】
13,3119 | 【Beilstein/Gmelin】
605637 | 【Beilstein Reference】
4-03-00-00160 |
| Physical and Chemical Properties | Back to Contents | 【Appearance】
Monoclinic prismatic crystals from water or alcohol. Odorless. | 【Solubility in water】
41.3 g/L | 【Boiling Point】
143 | 【Vapor Pressure】
5.5 (25 C) | 【Density】
1.404 g/cm3 | 【pKa/pKb】
12.02 (pKb) | 【Partition Coefficient】
-1.64 | 【Heat Of Vaporization】
38.0 kJ/mol | 【Heat Of Combustion】
-1376 kJ/mol | 【Usage】
Stabilizer of ammonium dinitramide melt. |
| First Aid Measures | Back to Contents | 【Ingestion】
Never give anything by mouth to an unconscious person. Get medical aid immediately. Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water. | 【Inhalation】
Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid. | 【Skin】
Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. | 【Eyes】
Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately. |
| Handling and Storage | Back to Contents | 【Storage】
Keep container closed when not in use. Store in a cool, dry area away from incompatible substances. | 【Handling】
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use with adequate ventilation. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Avoid ingestion and inhalation. |
| Hazards Identification | Back to Contents | 【Inhalation】
May cause respiratory tract irritation. May cause irritation of the mucous membranes. | 【Skin】
May cause skin irritation. Lon-term exposure may cause eczema. | 【Eyes】
May cause eye irritation. | 【Ingestion】
May cause gastrointestinal irritation with nausea, vomiting and diarrhea. May be harmful if swallowed. May form methemoglobin which in sufficient concentration causes cyanosis. | 【EC Safety Phrase】
S 22 24/25 |
| Exposure Controls/Personal Protection | Back to Contents | 【Personal Protection】
Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves and clothing to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure. | 【Respirators】
A respiratory protection program that meets OSHA's 29 CFR 1910.134 and ANSI Z88.2 requirements or European Standard EN 149 must be followed whenever workplace conditions warrant a respirator's use. | 【Exposure Effects】
Absorption into the body leads to the formation of methemoglobin which in sufficient concentrations causes cyanosis. Prolonged or repeated contact may cause possible eczema. Effects may be delayed 2-4 hours or longer. | 【Poison Class】
5 |
| Fire Fighting Measures | Back to Contents | 【Flash Point】
40 | 【Fire Fighting】
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Dust can be an explosion hazard when exposed to heat or flame. To extinguish fire use water spray, dry chemical, carbon dioxide, or appropriate foam. |
| Stability and Reactivity | Back to Contents | 【Disposal Code】
3 | 【Stability】
Stable under normal temperatures and pressures. | 【Incompatibilities】
Strong oxidizing agents, strong acids, strong bases, ammonium nitrate, potassium chlorates. | 【Decomposition】
Hydrogen cyanide, nitrogen oxides, carbon monoxide, carbon dioxide, cyanide fumes, ammonia. |
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