Chlorothalonil
Synonyms
1,3-Benzenedicarbonitrile, 2,4,5,6-tetrachloro-;
m-Tetrachlorophthalonitrile;
Category
Non-ionic surfactant
> Nitrile
Chemical Numbering System
CAS: 1897-45-6
EINECS: 217-588-1
Molecular Formula & Molecular Weight
Molecular Formula: C8Cl4N2
Molecular Weight: 265.91
Structure
Properties
Appearance (1), solid.
Solubility slightly soluble in water.
Stability stable. Can react with iron.
Risk Solid form: irritation, irritation to skin, eye, respiratory system.
GHS label: 
Animal Toxicity
Table 1 Animal toxicity values
|
dog oral LD50 |
> 5000mg/kg[1] |
|
mouse intraperitoneal LD50 |
2.5mg/kg[1] |
|
mouse oral LD50 |
3700mg/kg[1] |
|
rabbit skin LD50 |
> 10000mg/kg[1] |
|
rat inhalation LC50 |
310mg/m3/1H[1] |
|
rat oral LD50 |
10000mg/kg[1] |
|
rat skin LD50 |
> 2500mg/kg[1] |
Overall carcinogenic evaluation: Group 3[1]; Group 2B (IARC).
Ecology may be hazardous to environment. Water body should be given special attention.
Biodegradability biodegradable.
Characteristics excellent antimicrobial, antibacterial, preservative abilities. Have low toxicity, high efficiency and broad-spectrum bactericidal properties.
Synthesis
Quality Standards & Test Methods
1, Physical and chemical indexes
|
Item |
Physical and chemical indexes |
|
Solid |
|
|
Actives, %, ≥ |
90.0 |
Test Methods
(1), Actives
GB/T 13173 Surface active agents -- Detergents -- Testing methods
2, Hazardous substances indexes
|
Item |
Hazardous substances indexes |
|
Solid |
|
|
Heavy metals (as Pb), mg/kg, ≤ |
20 |
|
As, mg/kg, ≤ |
3 |
Test Methods
(1), Heavy metals (as Pb)
Safety and Technical Standards for Cosmetics (2015 Edition)
GB/T 30799 The test method of food detergents -- Determination of heavy metals
(2), As
Safety and Technical Standards for Cosmetics (2015 Edition)
GB/T 30797 The test method of food detergents -- Determination of total arsenic
3, Product standards
(1), Chinese standards
(1a), GB/T 9551 Chlorothalonil technical
(1b), GB/T 9552 Chlorothalonil wetable powders
(1c), GB/T 18171 Chlorothalonil aqueous suspension concentrate
(1d), GB 18172.1 Chlorothalonil smoke powder-Granualars
(1e), GB 18172.2 10% Chlorothalonil smoke tablets
(1f), GB/T 34762 Chlorothalonil water dispersible granules
4, Further explanation
(a), On physical and chemical indexes: firstly, shall be indicated carbon atom distribution; secondly, shall be indicated average molecular weight.
Major Uses
1, Typical applications
Use as antimicrobial agent, preservative.
Use as pesticide.
Manufacturers
References
[1]: ChemIDplus. 1897-45-6, Chlorothalonil
Update: 20190401(1);