Ametryne

  • 2-Ethylamino-4-isopropylamino-6-methylthio-1,3,5-triazine
  • N-Ethyl-n-isopropyl-6-methylthio-1,3,5-triazine-2,4-diamine
  • N-Ethyl-N'-(1-methylethyl)-6-(methylthio)-1,3,5-triazine-2,4-diamine
  • Topazol
  • 1,3,5-triazine-2,4-diamine, n-Ethyl-N'-(1-methylethyl)-6-(methylthio)
Formula
C9H17N5S
Structure
Description
Crystals.
Uses
Selective systemic herbicide, pre- and post-emergence control of most annual grasses and broad-leaved weeds.

Registry Numbers and Inventories.
CAS
834-12-8
EC (EINECS/ELINCS)
212-634-7
EC Index Number
613-010-00-0
EC Class
Harmful; Dangerous for the Environment
RTECS
XY9100000
RTECS class
Agricultural Chemical and Pesticide; Mutagen; Reproductive Effector; Primary Irritant
UN (DOT)
2763
Merck
12,411
Beilstein/Gmelin
613099
EPA OPP
80801
Swiss Giftliste 1
G-1080
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed

Properties.
Formula
C9H17N5S
Formula mass
227.33
Melting point, °C
88-89
Boiling point, °C
342
Vapor pressure, mmHg
2E-6 (25 C)
Critical temperature
543
Critical pressure
33.1
Density
1.19 g/cm3 (20 C)
Solubility in water
2.09E2 mg/L (25 C)
pKa/pKb
9.90 (pKb)
Partition coefficient, pKow
2.98

Hazards and Protection.
Storage
Store in cool, dry place. Store product in original container only.
Handling
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.
Protection
The use of personal protective equipment such as glasses, synthetic gloves and NIOSH approved breathing apparatus is important.
Respirators
Wear positive pressure self-contained breathing apparatus (SCBA).
Small spills/leaks
Do not touch damaged containers or spilled material unless wearing appropriate protective clothing. Stop leak if you can do it without risk. Cover with plastic sheet to prevent spreading. Absorb or cover with dry earth, sand or other non-combustible material and transfer to containers. DO NOT GET WATER INSIDE CONTAINERS.
Stability
Very stable over several yr of shelf life and only slight sensitivity to natural light and extreme temperatures. Evik 80w has a shelf life of at least 5 yr when stored in a dry place.
Incompatibilities
Incompatible with acids, diazo and azo compounds, halocarbons, isocyanates, aldehydes, alkali metals, nitrides, hydrides, and other strong reducing agents Reactions with these materials generate heat and in many cases hydrogen gas Incompatible with isocyanates, halogenated organics, peroxides, phenols (acidic), epoxides, anhydrides, and acid halides Flammable gaseous hydrogen is generated in combination with strong reducing agents, such as hydrides.

Fire.
Fire fighting
Extinguish fire using agent suitable for type of surrounding fire. Use water in flooding quantities as fog. Use alcohol foam. Wear positive pressure self-contained breathing apparatus when fighting fires involving this material. Keep upwind.
Fire potential
Nonflammable.
Combustion products
Fire may produce irritating, corrosive and/or toxic gases.

Health.
Poison_Class
4
Exposure effects
Coma was reported following ingestion of an herbicide containing atrazine, aminotriazole, ethylene glycol, and formaldehyde. Muscle tremors, tetany, and ataxia have been reported in animals following ingestions of triazine herbicides.
   Inhalation
Highly toxic, may be fatal if inhaled, swallowed or absorbed through skin. Effects of contact or inhalation may be delayed.
   Skin
Avoid any skin contact. See Inhalation.
   Eyes
See Inhalation.

First aid
 
   Ingestion
Seek medical assistance.
   Inhalation
Move victim to fresh air. Apply artificial respiration if victim is not breathing. Do not use mouth-to-mouth method if victim ingested or inhaled the substance; induce artificial respiration with the aid of a pocket mask equipped with a one-way valve or other proper respiratory medical device. Administer oxygen if breathing is difficult.
   Skin
Remove contaminated clothing and wash exposed area thoroughly with soap and water. A physician should examine the area if irritation or pain persists.
   Eyes
Irrigate exposed eyes with copious amounts of tepid water for at least 15 minutes. If irritation, pain, swelling, lacrimation, or photophobia persist, the patient should be seen in a health care facility.

Transport.
UN number
2763
Response guide
Hazard class
6.1
Packing Group
I; II; III