Product Identification
【Product Name】Chlorthal-dimethyl ；氯酞酸二甲酯
【Synonyms】Tetrachloroterephthalic acid dimethyl ester
【CAS】1861-32-1
【Formula】C10H6Cl4O4
【Molecular Weight】331.97
【EINECS】217-464-7
【RTECS】WZ1500000
【RTECS Class】Agricultural Chemical and Pesticide; Reproductive Effector
【Merck】12,2896
【Beilstein/Gmelin】1888840
【Beilstein Reference】3-09-00-04257

Physical and Chemical Properties
【Appearance】Colorless, crystalline solid.
【Solubility in water】Insoluble.
【Melting Point】159℃
【Boiling Point】422℃
【Vapor Pressure】2.5E-7 (25℃)
【Partition Coefficient】3.77
【Heat Of Vaporization】67.6 kJ/mol
【Usage】It is presently approved for use on turf, ornamentals, strawberries, and agronomic crops including cotton, soybeans, and field beans. It is effective against smooth & hairy crabgrass, witchgrass, green & yellow foxtails, fall panicum & other annual grasses. It is also useful against certain broad-leaved weeds such as carpet weed purslane & common chickweed. It is tolerated by many crop plants.

First Aid Measures
【Ingestion】Seek medical attention. If individual is drowsy or unconscious, do not give anything by mouth; place individual on the left side with the head down. Contact a physician, medical facility, or poison control center for advice about whether to induce vomiting. If possible, do not leave individual unattended.
【Inhalation】If symptoms develop, move individual away from exposure and into fresh air. If symptoms persist, seek medical attention. If breathing is difficult, administer oxygen. Keep person warm and quiet; seek immediate medical attention.
【Skin】Remove contaminated clothing. Wash exposed area with soap and water. If symptoms persist, seek medical attention. Launder clothing before reuse.
【Eyes】If symptoms develop, immediately move individual away from exposure and into fresh air. Flush eyes gently with water for at least 15 minutes while holding eyelids apart; seek immediate medical attention.

Handling and Storage
【Storage】Keep closed in a cool, dry place. Store only with compatible chemicals.
【Handling】For laboratory use only. Do not wear contact lenses. Use in a chemical hood with protective equipment.

Hazards Identification
【Ingestion】Nausea, vomiting and diarrhea are possible if ingested.
【Inhalation】Cough, tachypnea, and wheezing are common after inhalation.
【Skin】Redness, swelling and pain may occur.
【Eyes】Irritation.
【EC Safety Phrase】S 22 24/25

Exposure Controls/Personal Protection
【Personal Protection】Chemical splash ggles 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】OSHA/MSHA approved respirator.
【Poison Class】5

Fire Fighting Measures
【Flash Point】175℃
【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.

Accidental Release Measures
【Small spills/leaks】Evacuate and ventilate area. Wear appropriate protective equipment. Sweep up and place in an appropriate waste container. Wash contaminaed surfaces to remove residue.

Stability and Reactivity
【Stability】Stable in the pure state stable to UV irradiation.
【Incompatibilities】Strong oxidizing agents.
【Decomposition】No data.