A yellow powder.
Experimentally as a carcinogen and mutagen. Formerly used in preparation of diazomethane.
Registry Numbers and Inventories.
EC Index Number
Carcinogenic Category 2; Harmful; Irritant; Dangerous for the Environment
Tumorigen; Mutagen; Reproductive Effector
Swiss Giftliste 1
Melting point, °C
Solubility in water
Partition coefficient, pKow
Hazards and Protection.
Keep in a cool, dry, dark location in a tightly sealed container or cylinder. Keep away from incompatible materials, ignition sources and untrained individuals. Secure and label area. Protect containers/cylinders from physical damage.
All chemicals should be considered hazardous. Avoid direct physical contact. Use appropriate, approved safety equipment. Untrained individuals should not handle this chemical or its container. Handling should occur in a chemical fume hood.
Wear appropriate protective gloves, clothing and goggles.
Wear positive pressure self-contained breathing apparatus (SCBA).
Keep sparks, flames, and other sources of ignition away. Keep material out of water sources and sewers. Keep material dry. Combustion products include corrosive or toxic vapors. Land spill: Cover solids with a plastic sheet to prevent dissolving in rain or fire fighting water.
Can explode on heating and under high impact. Explosive diazoalkanes are formed upon alkaline hydrolysis.
Sensitive to heat Incompatible with acids, bases, oxidizing agents and reducing agents Reacts with bases to release highly toxic, irritating and explosive gases Reacts slowly with acids to release nitrous acid Reacts with various nucleophiles, especially amines and thiols Reacts with aqueous potassium hydroxide to form a highly reactive compound.
When heated to decomposition it emits very toxic fumes of nitrogen oxides.
Use alcohol foam, dry chemical or carbon dioxide.
May be ignited by friction, heat, sparks or flames. Some may burn rapidly with flare burning effect. Powders, dusts, shavings, borings, turnings or cuttings may explode or burn with explosive violence. Substance may be transported in a molten form. May re-ignite after fire is extinguished.
Fire may produce irritating and/or toxic gases.
I-2A, N-2, CP65
Fire may produce irritating and/or toxic gases. Contact may cause burns to skin and eyes. Contact with molten substance may cause severe burns to skin and eyes. Runoff from fire control may cause pollution.
May cause burns.
If the victim is conscious and not convulsing, give 1 or 2 glasses of water to dilute the chemical and IMMEDIATELY call a hospital or poison control center. MMEDIATELY transport the victim to a hospital.
IMMEDIATELY leave the contaminated area; take deep breaths of fresh air. IMMEDIATELY call a physician and be prepared to transport the victim to a hospital even if no symptoms (such as wheezing, coughing, shortness of breath, or burning in the mouth, throat, or chest) develop. Provide proper respiratory protection to rescuers entering an unknown atmosphere. Whenever possible, Self-Contained Breathing Apparatus (SCBA) should be used.
IMMEDIATELY flood affected skin with water while removing and isolating all contaminated clothing. Gently wash all affected skin areas thoroughly with soap and water. IMMEDIATELY call a hospital or poison control center even if no symptoms (such as redness or irritation) develop. IMMEDIATELY transport the victim to a hospital for treatment after washing the affected areas.
First check the victim for contact lenses and remove if present. Flush victim's eyes with water or normal saline solution for 20 to 30 minutes while simultaneously calling a hospital or poison control center. Do not put any ointments, oils, or medication in the victim's eyes without specific instructions from a physician. IMMEDIATELY transport the victim after flushing eyes to a hospital even if no symptoms (such as redness or irritation) develop.
USCG CHRIS Code
Std. Transport #