1.       Product name: Chlorothalonil 98.0%min Technical

2.       Common name of active ingredient: Chlorothalonil

3.       Chemical name: IUPAC: 2,4,5,6-tetrachlorobenzenedicarbonitril

4.       Empieical formula: C₈Cl₄N₂

5.       Structural formula:

6.       CAS Number: 1897-45-6

7.       Molecular weight: 265.9

8.       Physical and chemical properties:

1)      Color: off-white to white crystalline powder.

2)      Odor: irritating stink smell.

3)      Physical state: crystalline powder.

4)      Melting point: 250-251℃

5)      Boiling point: 350℃

6)      Intensity of specific gravity: 1.51g/cm³, 20℃

7)      Viscousity: no viscousity

8)      Solubility in water: 25℃, almost insoluble in water, 0.6mg/Kg.

9)      Solubility in solvents: 25℃, benzene—42g/kg; toluene—70g/kg; xylene—80g/kg; DMF—40g/kg; hexanol—30g/kg; DMSO—20g/kg; acetone—2g/kg; kerosine—1g/kg.

10)   Vapor pressure: 1.33Pa, 40℃

11)   Stability: stable under normal conditions, stable to common acidity, alkalinity,UV light, etc, it will decompose at strong alkalinity conditions, not corrosive..

12)   Partition coefficient: 437 (calc.): 20.9

13)   Adsorption coefficient: 1380.

14)   Data on storage stability: stored in cool, dry, dark regions with good ventilation conditions. Stable for minimum 2 years under normal storage conditions.

15)   Proposed Uses: Chlorothalonil is a broad-spectrum organochlorine fungicide used to control fungi that threaten vegetables, trees, small fruits, turf, ornamentals, and other agricultural crops. It also controls fruit rots in cranberry bogs.

Quality Specification: Chlorothalonil 98.0%min Technical

16)   Impurity Profiles: