Permethrin

Permethrin is a high-effective, broad-spectrum, low-toxic and residue pyrethroid of light-stableness. It has strong contact and  

Permethrin is a high-effective, broad-spectrum, low-toxic and residue pyrethroid of light-stableness. It has strong contact and stomach poisoning activity. It is an ovicide with repellent activity. Without cyanic in its structure, the irritation is slight. It is mainly used to control vector insect   (e.g. mosquitoes, flies, and cockroach), and moth in wool, leather, limber and furniture. It is also used in prevention and control of pests in cotton, rice, crop, fruit tree, vegetables, tea tree and forest. 

Appearance: Faint yellow-faint brown sticky liquid, but turn to be solid for long time storage.

Specific gravity: 1.21(d420)

Boiling Point: 200/1.33Pa or 220/6.67Pa

Vapor pressure:4.53×10-5Pa(25)

Viscosity:250cp(30)

Solubility: Hardly soluble in water, but soluble in organic solvents.Stability: Stable in neutral acidic medium, but easily hydrolyzed in alkaline solution; light resistant; not corrosive.

Toxicity: Acute oral LD50 to rats is more than 2000mg/kg. Acute dermal LD50 to rats is more than 2500mg/kg. Acute inhalant LC50 to rats is more than 23.5mg/L air. No irritation to skin and slight irritation to eyes.

Quality Index:

Permethrin Technical

Appearance: faint yellow-faint brown viscous liquid. 

Top class: content ≥95.0% 

A class: content ≥93.0% 

Moisture ≤0.2% 

Acid degree ≤0.15% 

Acetone infusibility ≤0.1%

Test Standard: GB9566-88

Permethrin