Terrazole

  • Aaterra
  • 5-Aethoxy-3-trichlormethyl-1,2,4-thiadiazol
  • Dwell
  • Echlomezol
  • Echlomezole
Formula
C5H5Cl3N2OS
Structure
Description
Pale yellow liquid when pure. Mild persistent odor.
Uses
Fungicide

Registry Numbers and Inventories.
CAS
2593-15-9
EC (EINECS/ELINCS)
219-991-8
EC Index Number
613-133-00-X
EC Class
Carcinogenic Category 3; Toxic; Harmful; Dangerous for the Environment
RTECS
XI3875000
RTECS class
Agricultural Chemical and Pesticide; Mutagen
Beilstein/Gmelin
1074817
EPA OPP
84701
Swiss Giftliste 1
G-6619
Austrailia AICS
Listed
New Zealand
Listed
Korea ECL
Listed

Properties.
Formula
C5H5Cl3N2OS
Formula mass
247.53
Melting point, °C
20
Boiling point, °C
255
Vapor pressure, mmHg
0.03 (25 C)
Density
1.503 g/cm3 (20 C)
Solubility in water
50 mg/L (25 C)
Partition coefficient, pKow
4.13
Heat of vaporization
47.2 kJ/mol

Hazards and Protection.
Storage
Keep in a cool, dry, dark location in a tightly sealed container or cylinder. Keep away from incompatible materials, ignition sources and untrained individuals. Secure and label area. Protect containers/cylinders from physical damage.
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
Chemical splash goggles in compliance with OSHA regulations are advised; however, OSHA regulations also permit other type safety glasses. Whre chemical resistant gloves. To prevent repeated or prolonged skin contact, wear impervious clothing and boots.
Respirators
Use NIOSH/MSHA approved respirator appropriate for exposure of concern.
Small spills/leaks
Evacuate area and ventilate. Wear protective equipment. If required, use an inert absrobent. Sweep up and place in an appropriate container for disposal. Wash contaminated surfaces.
Stability
Stable and suffered no loss of biological activity during 3 yr storage under normal conditions thermally stable to 165 C; not degraded by UV light or oxygen hydrolyzed on contact with alkali media.
Incompatibilities
Strong oxidizing agents.

Fire.
Flash Point,°C
108
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Use agent most appropriate to extinguish fire.

Health.
Carcinogin
CP65
Poison_Class
4
Exposure effects
The toxicological properties of this material have not been investigated.

First aid
 
   Ingestion
The possible benefit of early removal of some ingested material by cautious gastric lavage must be weighed against potential complications of bleeding or perforation. Activated charcoal activated charcoal binds most toxic agents and can decrease their systemic absorption if administered soon after ingestion. Activated charcoal: administer charcoal as a slurry (240 ml water/30 g charcoal). Usual dose: 25 to 100 g in adults/adolescents.
   Inhalation
Move patient to fresh air. Monitor for respiratory distress. If cough or difficulty breathing develops, evaluate for respiratory tract irritation, bronchitis, or pneumonitis. Administer oxygen and assist ventilation as required. Treat bronchospasm with beta2 agonist and corticosteroid aerosols.
   Skin
Remove contaminated clothing and wash exposed area thoroughly with soap and water. A physician should examine the area if irritation or pain persists. Pesticides - remove contaminated clothing and jewelry. Wash the skin, including hair and nails, vigorously; do repeated soap washings. Discard contaminated clothing. Irritation - treat dermal irritation or burns with standard topical therapy
   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.