Diazene, dimethyl-, 1-oxide

74.08

74.08

MO0N1J0SEN

171779

2810

DTXSID3020124

2927000090

41.1

0.73170

Azoxymethane is a clear oily liquid. (NTP, 1992)

0.994 at 72.3° F (NTP, 1992)

98 °C

24 °C

1.427

greater than or equal to 100 mg/mL at 73° F (NTP, 1992)

−20°C

59.7mmHg at 25°C

Subcutaneous-rat LD50: 27 mg/kg

Flammable; burning produces toxic nitrogen oxide fumes

This chemical is sensitive to prolonged exposure to air and elevated temperatures (NTP, 1992). Soluble in water.

Azo, Diazo, Azido, Hydrazine, and Azide Compounds

AZOXYMETHANE is an azo compound. Azo, diazo, azido compounds can detonate. This applies in particular to organic azides that have been sensitized by the addition of metal salts or strong acids. Toxic gases are formed by mixing materials of this class with acids, aldehydes, amides, carbamates, cyanides, inorganic fluorides, halogenated organics, isocyanates, ketones, metals, nitrides, peroxides, phenols, epoxides, acyl halides, and strong oxidizing or reducing agents. Flammable gases are formed by mixing materials in this group with alkali metals. Explosive combination can occur with strong oxidizing agents, metal salts, peroxides, and sulfides.

UN 1992 3/PG 3

3

45-46-10-25-34-36/38

53-26-36/37/39-45

PA2975000

T

Ventilated, low temperature and dry; stored separately from food materials in warehouse

P201-P210-P280-P301 + P310 + P330-P308 + P313-P337 + P313

H226-H300-H315-H319-H350

Flash point data for this compound are not available. It is probably highly flammable. (NTP, 1992)

|Danger|H300 (97.44%): Fatal if swallowed [Danger Acute toxicity, oral]|P201, P202, P264, P270, P281, P301+P310, P308+P313, P321, P330, P405, and P501|Aggregated GHS information provided by 39 companies from 2 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Fires involving this compound can be controlled with a dry chemical, carbon dioxide, or Halon extinguisher. (NTP, 1992)

Excerpt from ERG Guide 153 [Substances - Toxic and/or Corrosive (Combustible)]: As an immediate precautionary measure, isolate spill or leak area in all directions for at least 50 meters (150 feet) for liquids and at least 25 meters (75 feet) for solids. SPILL: Increase, in the downwind direction, as necessary, the isolation distance shown above. FIRE: If tank, rail car or tank truck is involved in a fire, ISOLATE for 800 meters (1/2 mile) in all directions; also, consider initial evacuation for 800 meters (1/2 mile) in all directions. (ERG, 2016)

SMALL SPILLS AND LEAKAGE: If you spill this chemical, FIRST REMOVE ALL SOURCES OF IGNITION. Then, use absorbent paper to pick up all liquid spill material. Seal the absorbent paper, as well as any of your clothing which may be contaminated, in a vapor-tight plastic bag for eventual disposal. Wash any surfaces you may have contaminated with a soap and water solution. Do not reenter the contaminated area until the Safety Officer (or other responsible person) has verified that the area has been properly cleaned. STORAGE PRECAUTIONS: You should keep this material in a tightly closed container under an inert atmosphere, and store it in an explosion-proof freezer. STORE AWAY FROM SOURCES OF IGNITION. (NTP, 1992)

RECOMMENDED RESPIRATOR: When working with this chemical, wear a NIOSH-approved full face positive pressure supplied-air respirator or a self-contained breathing apparatus (SCBA). If either of these are not available, wear a full face chemical cartridge respirator equipped with the appropriate organic vapor cartridges. However, note that full face chemical cartridge respirators provide a substantially lower protection level than do positive supplied-air or SCBA equipment. (NTP, 1992)

highly toxic

Substances that increase the risk of NEOPLASMS in humans or animals. Both genotoxic chemicals, which affect DNA directly, and nongenotoxic chemicals, which induce neoplasms by other mechanism, are included. (See all compounds classified as Carcinogens.)

ACUTE/CHRONIC HAZARDS: This compound is highly flammable and sensitive to elevated temperatures. Upon decomposition it emits toxic fumes. (NTP, 1992)

EYES: 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. SKIN: IMMEDIATELY flood affected skin with water while removing and isolating all contaminated clothing. Gently wash all affected skin areas thoroughly with soap and water. If symptoms such as redness or irritation develop, IMMEDIATELY call a physician and be prepared to transport the victim to a hospital for treatment. INHALATION: 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; if not available, use a level of protection greater than or equal to that advised under Protective Clothing. INGESTION: DO NOT INDUCE VOMITING. Volatile chemicals have a high risk of being aspirated into the victim's lungs during vomiting which increases the medical problems. 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. IMMEDIATELY transport the victim to a hospital. If the victim is convulsing or unconscious, do not give anything by mouth, ensure that the victim's airway is open and lay the victim on his/her side with the head lower than the body. DO NOT INDUCE VOMITING. IMMEDIATELY transport the victim to a hospital. (NTP, 1992)

Azoxymethane