Shanghai Rural Industries Co., Ltd.

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Paraquat Dichloride

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Place of Origin:
China (Mainland)
Color:
Blue or green
MF:
C12H14Cl2N2
Application:
Herbicide
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Shanghai Rural Industries Co., Ltd.
China (Mainland) China (Mainland)
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Item specifics

  • Place of Origin: China (Mainland)
  • Color: Blue or green
  • MF: C12H14Cl2N2
  • Application: Herbicide
  • State: Liquid
  • Purity: 200 g/l, 250 g/l
  • Other Names: Methyl viologen
  • Model Number: 200 g/l SL, 250 g/l SL
  • Payment Terms: T/T
  • Brand Name: Rural
  • Classification: Herbicide
  • CAS No.: 1910-42-5

Specifications

Appearance: Blue or green liquid with odor
Free 4,4'-bipyridyl: Max 1.0 g/kg
Total terpyridines: Max 0.001 g/kg
pH: 4.0 - 7.0

Common name: Paraquat Dichloride

CAS No: 1910-42-5

Molecular formula: C12H14Cl2N2

Molecular weight: 257.2

Analysis method: HPLC

Chemical name: 1,1’-dimethyl-4,4’-bipyridinium dichloride

 

Paraquat Dichloride SL

Appearance

Blue or green liquid with odor

Free 4,4'-bipyridyl

≤ 1.0 g/kg

Total terpyridines

≤ 0.001 g/kg

pH

4.0 - 7.0

Solution stability

Qualified

Persistent foam

≤ 60 ml

Storage stability

Qualified

 

 

Properties: Blue or green liquid.

Melting point: > 400°C.

Decomposition temperature: 340°C. 

Solubility: In water 620 g/l (20°C).

Paraquat dichloride is hydrolytically stable under acidic, neutral and alkaline conditions, no significant decrease in concentration having been recorded at pH 5, 7 and 9 after 30 days at 25°C and 40°C.

The environmental half-life of paraquat dichloride in water under mid-European conditions was calculated to be between 2 and 820 years, depending upon seasonal sunlight and depth of water.

 

ACTION: Herbicide

 

TOXICITY

Oral: Acute oral LD50 for male rats 340, female rats 283 mg/kg.

Skin and eye: Acute percutaneous LD50 for rats > 2000 mg/kg.

Slight but persistent skin irritant, persistent, moderate to severe irritant to eyes (rabbits).

Inhalation: LC50 (4 h) for rats 0.83 - 1.93 mg/l air.

 

USE

Paraquat dichloride is a non-selective contact herbicide, which is absorbed by foliage, with some translocation in the xylem. It is used in broad-spectrum control of broad-leaved weeds and grasses, in a wide range of agricultural applications, for general weed control on non-crop land and also for pasture restoration.

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