Product Identification

Product Name

Amino-s-triazole

Synonyms

1,2,4-Triazol-3-ylamine
2H-1,2,4-Triazol-3-amine
3-Amino-1H-1,2,4-triazole
Aminotriazole

CAS

61-82-5

Formula

C2H4N4

Molecular Weight

84.08

EINECS

200-521-5

RTECS

XZ3850000

RTECS Class

Agricultural Chemical and Pesticide; Tumorigen; Drug; Mutagen; Reproductive Effector

Merck

13,489

Beilstein/Gmelin

107687

Beilstein Reference

4-26-00-01073

EC Index Number

613-011-00-6

EC Class

Carcinogenic Category 3; Harmful; Dangerous for the Environment

Physical and Chemical Properties

Appearance

Colorless to white, crystalline powder, odorless when pure.

Solubility in water

Very soluble

Melting Point

149 - 152

Boiling Point

347

Vapor Pressure

5E-5 (25 C)

Density

1.138 g/cm3 (20 C)

pKa/pKb

9.40 (pKb)

Partition Coefficient

-.65

Heat Of Vaporization

59.2 kJ/mol

Heat Of Combustion

-1436 kJ/mol

Usage

Nonselective systemic herbicide. Noncropland for annual grasses, broadleaf weeds, perennial broadleaf weed, poison ivy, some aquatic weeds in marshes, drainage ditches.

Saturation Concentration

0.01 ppm at 20 C (calculated)

First Aid Measures

Ingestion

If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid.

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. Immediately flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse.

Eyes

Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.

Handling and Storage

Storage

Keep container closed when not in use. Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances. Store in glass containers. Store protected from light. Store at room temperature.

Handling

Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use only in a well ventilated area. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Do not breathe dust, vapor, mist, or gas. Keep container tightly closed. Do not ingest or inhale. Store protected from light.

Hazards Identification

Inhalation

Causes respiratory tract irritation. Can produce delayed pulmonary edema.

Skin

Causes skin irritation. Repeated doses may cause skin rashes

Eyes

Causes eye irritation. May cause chemical conjunctivitis.

Ingestion

May cause gastrointestinal irritation with nausea, vomiting and diarrhea. May cause central nervous system depression. May cause thyroid abnormalities. May be harmful if swallowed.

Hazards

this compound is non-combustible.

EC Risk Phrase

R 40 48/22 51/53

EC Safety Phrase

S 36 37 61

UN (DOT)

2588

Exposure Controls/Personal Protection

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 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

May cause cancer according to animal studies. May cause reproductive and fetal effects. Prolonged or repeated exposure may cause thyroid damage. Effects may be delayed. Laboratory experiments have resulted in mutagenic effects. Animal studies have reported the development of tumors.

Exposure limit(s)

TLV: ppm; 0.2 mg/m3 (as TWA) (ACGIH 1993-1994). NIOSH REL: Ca TWA 0.2 mg/m3 See Appendix A NIOSH IDLH: Potential occupational carcinogen

Poison Class

2

Fire Fighting Measures

Flash Point

191

Autoignition

225

Fire Fighting

Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Water runoff can cause environmental damage. Dike and collect water used to fight fire. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. This material in sufficient quantity and reduced particle size is capable of creating a dust explosion. Extinguishing media: Use extinguishing media most appropriate for the surrounding fire. In case of fire use water spray, dry chemical, carbon dioxide, or appropriate foam.

Fire Potential

Aq, nonflammable, as amitrol-t; dry powder, non-flammable, as amizol.

Accidental Release Measures

Small spills/leaks

Vacuum or sweep up material and place into a suitable disposal container. Avoid runoff into storm sewers and ditches which lead to waterways. Clean up spills immediately, using the appropriate protective equipment. Avoid generating dusty conditions. Provide ventilation.

Stability and Reactivity

Disposal Code

5

Stability

Stable under normal temperatures and pressures. Decomposes on exposure to light.

Incompatibilities

Strong oxidizing agents, acid chlorides, aluminum, copper, copper alloys, iron, acid anhydrides, iron salts.

Decomposition

Nitrogen oxides, carbon monoxide, irritating and toxic fumes and gases, carbon dioxide, nitrogen.

Combustion Products

Fire will produce irritating, corrosive and/or toxic gases.

Transport Information

UN Number

2588

Hazard Class

6.1

Packing Group

I; II; III

HS Code

2933 99 90