Dichlorvos 97% TC, 95% TC, 80% EC, 50% EC

Detailed Product Description

Features:

1) Common name: dichlorvos

2) IUPAC name:  2,2-dichlorovinyl dimethyl phosphate      

3) Molecular formula: C₄H₇Cl₂O₄P

4) Molecular weight: 221.0

5) Cas No.: 62-73-7

Physical and chemical properties:

1) Appearance: colorless liquid; (tech., colorless- to-amber liquid, with an aromatic odour)

2) Boiling point: 234.1^oC/1×10⁵Pa

3) Vapor pressure: 2.1×103 mPa (25^oC)

4) S.g,/density: 1.425 g/ml (20^oC)

5) Solubility: In water c. 18 g/l (25^oC); completely miscible with aromatic hydrocarbons, chlorinated hydrocarbons and alcohols; moderately soluble in diesel oil, kerosene, isoparaffinic hydrocarbons and mineral oil

6) Stability: Stable to heat; slowly hydrolysed in water and in acidic media, and rapidly hydrolysed by alkalis, to dimetyl hydrogen phosphate and dichloroacetaldehyde

 

 

Technical specifications:

 

Dichlorvos 95% TC

Appearance	Amber to colorless transparent liquid
a.i.Content/%	95 min
Moisture/%	0.05 max
Acidity (H2SO4)/%	0.2 max

Dichlorvos 97% TC

Appearance	Amber to colorless transparent liquid
a.i.Content/%	97min
Moisture/%	0.05 max

Dichlorvos 50% WP

Appearance	Light yellow or yellowish-brown transparent liquid
a.i.Content/%	50min
Acidity (H2SO4)/%	0.3max
Moisture/%	0.1max
Emulsifiable stability (diluted to 1:200)	Qualified
Low temperature stability	Qualified
Heat storage stability	Qualified

Dichlorvos 80% WP

Appearance	Light yellow or yellowish-brown transparent liquid
a.i.Content/%	80min
Acidity (H2SO4)/%	0.3max
Moisture/%	0.1max
Emulsifiable stability (diluted to 1:200)	Qualified
Low temperature stability	Qualified
Heat storage stability	Qualified

 

 

Uses:

 

Insecticide and acaricide with pespiratory, contact, and stomach action; gives rapid knockdown; control of Masquito, fly, cockroach, apple ermine moth, mite, aphid, borer, pear leaf worm, mulberry looper, tea leafhopper, masson pine moth, willow tussock moth, red spider, tobacco aphid, cabbage caterpillar, vegetable borer, leafhopper, cotton aphid, cotton leafhopper and so on.

 

 

Toxicity:

Oral: acute LD₅₀ for rats c. 50 mg/kg

Skin and eye: acute percutaneous LD₅₀ for rats c. 90 mg/kg; slight skin and eye irritant (rabbits)

Inhalation: LC₅₀ (4h) for rats 340 mg/m3; (1h) for rats 455 mg/m3

NOEL: (2y) for rats 10 mg/kg doet

ADI: 0.004 mg/kg b.w.