1H-Tetrazole

70.05

70.05

206-023-4

36712

0504

DTXSID5075280

2933990090

54.5

-1.16

Cream to orange Liquid

1.5±0.1 g/cm3

157 °C

220℃

5 °C

1.543

H2O: soluble

Room temperature.

394mmHg at 25°C

Soluble in water (23 g/100 mL at 20°C) Reacts slowly with water (moisture) with release of corrosive gases (ammonia, nitrogen oxides).

Amines, Phosphines, and Pyridines

Explosive

1-H-TETRAZOLE is stable at normal temperature and pressure but decomposes rapidly and explosively if heated above its melting point of 155-157° C (Chem. Rev 1947, 41, 5). Presents an extreme risk of explosion by shock, friction, fire or other sources of ignition. Reacts violently with strong oxidizers. Reacts with acidic materials (strong acids, acid anhydrides and acid chlorides) to release heat and toxic and corrosive gases. Reacts with some active metals to give new materials that are shock-sensitive explosives. Can react exothermically with reducing agents. Heating or burning releases toxic and corrosive nitrogen oxides, carbon monoxide, carbon dioxide. [MSDS Document number : 4330220A] Soluble in water. Soluble in acetonitrile. Dilute solutions (2-3% by mass) of 1-H-TETRAZOLE in acetonitrile are used in biochemistry for DNA synthesis.

III

4.1

UN 1993 3/PG 2

3

11-20/21/22-36-5-4

16-26-36-36/37-35-15

UW7370000

F,Xn,E

Stable under normal shipping and handling conditions. Stable under normal temperatures and pressures.

P210, P230, P240, P250, P280, P370+P380, P372, P373, P401, P501

H201

Excerpt from ERG Guide 112 [Explosives* - Division 1.1, 1.2, 1.3 or 1.5]: MAY EXPLODE AND THROW FRAGMENTS 1600 METERS (1 MILE) OR MORE IF FIRE REACHES CARGO. For information on "Compatibility Group" letters, refer to Glossary section. (ERG, 2016)

|Danger|H201: Explosive; mass explosion hazard [Danger Explosives]|P210, P230, P240, P250, P280, P370+P380, P372, P373, P401, and P501

Excerpt from ERG Guide 112 [Explosives* - Division 1.1, 1.2, 1.3 or 1.5]: CARGO FIRE: DO NOT fight fire when fire reaches cargo! Cargo may EXPLODE! Stop all traffic and clear the area for at least 1600 meters (1 mile) in all directions and let burn. Do not move cargo or vehicle if cargo has been exposed to heat. TIRE OR VEHICLE FIRE: Use plenty of water - FLOOD it! If water is not available, use CO2, dry chemical or dirt. If possible, and WITHOUT RISK, use unmanned hose holders or monitor nozzles from maximum distance to prevent fire from spreading to cargo area. Pay special attention to tire fires as re-ignition may occur. Stand by, at a safe distance, with extinguisher ready for possible re-ignition. (ERG, 2016)

Excerpt from ERG Guide 112 [Explosives* - Division 1.1, 1.2, 1.3 or 1.5]: Isolate spill or leak area immediately for at least 500 meters (1/3 mile) in all directions. LARGE SPILL: Consider initial evacuation for 800 meters (1/2 mile) in all directions. FIRE: If rail car or trailer is involved in a fire, ISOLATE for 1600 meters (1 mile) in all directions; also, initiate evacuation including emergency responders for 1600 meters (1 mile) in all directions. (ERG, 2016)

Excerpt from ERG Guide 112 [Explosives* - Division 1.1, 1.2, 1.3 or 1.5]: ELIMINATE all ignition sources (no smoking, flares, sparks or flames in immediate area). All equipment used when handling the product must be grounded. Do not touch or walk through spilled material. DO NOT OPERATE RADIO TRANSMITTERS WITHIN 100 METERS (330 FEET) OF ELECTRIC DETONATORS. DO NOT CLEAN-UP OR DISPOSE OF, EXCEPT UNDER SUPERVISION OF A SPECIALIST. (ERG, 2016)

Excerpt from ERG Guide 112 [Explosives* - Division 1.1, 1.2, 1.3 or 1.5]: Wear positive pressure self-contained breathing apparatus (SCBA). Structural firefighters' protective clothing will only provide limited protection. (ERG, 2016)

Excerpt from ERG Guide 112 [Explosives* - Division 1.1, 1.2, 1.3 or 1.5]: Fire may produce irritating, corrosive and/or toxic gases. (ERG, 2016)

Excerpt from ERG Guide 112 [Explosives* - Division 1.1, 1.2, 1.3 or 1.5]: Ensure that medical personnel are aware of the material(s) involved and take precautions to protect themselves. Move victim to fresh air. Call 911 or emergency medical service. Give artificial respiration if victim is not breathing. Administer oxygen if breathing is difficult. Remove and isolate contaminated clothing and shoes. In case of contact with substance, immediately flush skin or eyes with running water for at least 20 minutes. (ERG, 2016)

1H-tetrazole