3-AMINOTRIAZOLE
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3-AMINOTRIAZOLE
structure -
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CAS No:
155-25-9
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Chemical Name:
3-AMINOTRIAZOLE
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CAS No:
Description
Amitrole is a colorless to off-white crystalline solid or white powder. Odorless when pure.
ChEBI: Amitrole is a member of the class of triazoles that is 1H-1,2,4-triazole substituted by an amino group at position 3. Used to control annual grasses and aquatic weeds (but not on food crops because it causes cancer in laboratory animals). Its use within the EU was banned from September 2017 on the grounds of potential groundwater contamination and risks to aquatic life; there have also been concerns about its endocrine-disrupting properties. It has a role as a herbicide, an EC 1.11.1.6 (catalase) inhibitor and a carotenoid biosynthesis inhibitor. It is an aromatic amine and a member of triazoles.
A potential danger to those involved in the manufacture, formulation, and application of this postemergence herbicide, which is now limited to noncrop applications as a herbicide and plant growth regulator. Some triazoles have been used as rubber components.
UN2588 Pesticides, solid, toxic, Hazard Class: 6.1; Labels: 6.1-Poisonous materials, Technical Name Required. UN3077 Environmentally hazardous substances, solid, n.o.s., Hazard class: 9; Labels: 9-Miscellaneous hazardous material, Technical Name Required.
Consult with environmental regulatory agencies for guidance on acceptable disposal practices. Generators of waste containing this contaminant (≥100 kg/mo) must conform with EPA regulations governing storage, transportation, treatment, and waste disposal. Amitrol is resistant to hydrolysis and the action of oxidizing agents. Burning the compound with polyethylene is reported to result in .99% decomposition.
Characteristics
67.6
-0.97
Amitrole appears as odorless white crystals or white powder. Bitter taste. Melting point 147-159°C. Sublimes undecomposed at reduced pressure. Used as a post-emergence herbicide.
1.138 x 10-3 g/cm3 @ Temp: 20 °C
159 °C
244.9±23.0 °C at 760 mmHg
101.9±22.6 °C
1.739
(77°F): 28%
Safe Storage of Pesticides. Always store pesticides in their original containers, complete with labels that list ingredients, directions for use, and first aid steps in case of accidental poisoning. Never store pesticides in cabinets with or near food, animal feed, or medical supplies. Do not store pesticides in places where flooding is possible or in places where they might spill or leak into wells, drains, ground water, or surface water.
Vapour pressure, kPa at 20°C: (negligible)
Relative vapour density (air = 1): 2.9
Noncombustible Solid, but may be dissolved in flammable liquids.
Odorless when pure.
Bitter taste
FORMS NEUTRAL AQ SOLN BUT ACTS AS WEAK BASE WITH KB OF 1X10-10
Safety Information
III
9
UN2588 Pesticides, solid, toxic, Hazard Class: 6.1; Labels: 6.1-Poisonous materials, Technical Name Required. UN3077 Environmentally hazardous substances, solid, n.o.s., Hazard class: 9; Labels: 9-Miscellaneous hazardous material, Technical Name Required.
48/22-63-51/53
(2)-13-36/37-61
XZ3850000
Xn, N
Store in an area without drain or sewer access. Separated from strong acids, strong oxidants, acid anhydrides and acid chlorides. Do NOT store or transport in containers made from iron, aluminium or copper and its alloys. Separated from food and feedstuffs.
Stable in neutral, acidic and alkaline media; DT50 >30 days (pH 4-9, 23 deg C). Photolysis DT50 >30 days (pH 5-9, 25 deg C). Powerful chelating agent.
P201, P202, P260, P273, P281, P308+P313, P314, P391, P405, P501
H361D
Dust may be explosive in air. Keep away from strong oxidizers; strong acids; light and heat (decomposes). Corrosive to iron, aluminum, and copper. Sublimes undecomposed at reduced pressure.
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