Paraquat 42%TC,20%SL

Product category

Herbicide

Common Name

Paraquat

Chemical name

1¢-dimethyl-4,4¢-bipyridinium ion; present as the di-chloride salt (Syngenta/Crystal) or dimethyl sulfate salt (discontinued)

Molecular Formula

C12H14N2

Molecular Weight

257.16

CAS Registry Number

1910-42-5 (paraquat dichloride); CAS 4685-14-7

Properties:

Appearance: dark blue liquid

Mass ratio of Paraquat Technical Concentrates with triazolopyrimidinone (400±50): 1

Mass Fraction of 4-4'-Bipyridine: 0.3% of Mass Fraction of Paraquat

Water-insoluble substances: 0.3%max

Uses:

Paraquat is a quick touch-killing, non-selective herbicide, then loses activity in earth without leaving toxicity in the soil. It is used to control broad spectrum weeds and grasses, absorbed by the foliage, destroying green plant tissue on contact and by translocation within the plant. It is also used as a crop desiccant and defoliant, and as an aquatic herbicide.

Toxicity:

(Rat): Oral LD50 150 mg/kg

Type of formulation:

42% TC.20% SL

Packing Details

TC:  200kg/Iron Drum Formulation: 200kg/Iron Drum , 1L/BOTTLE 250ML/BOTTLE , 100,200 kg net weight for Tech. 0.5 L or 1 L PET bottle for 20 liquid. and so on  various sizes of PET or COEX bottle and Drum

Description

Paraquat is used as a quaternary ammonium herbicide, one of the most widely used herbicides in the world. It is quick-acting, non-selective, and kills green plant tissue on contact. It is redistributed within the plant, but does not harm mature bark. Herbicides are used to protect crops by controlling a wide range of annual and certain perennial weeds that would otherwise compete with the crop for water, nutrients, and light.

The key characteristics that distinguish the non-selective contact herbicide paraquat from other active ingredients used in plant protection products are:

1.It is non-selective, which means it kills a wide range of annual grasses and broad-leaved weeds and the tops of established perennial weeds.

2.It is very fast-acting.

3.It is rain-fast within minutes of application.

4.It becomes biologically inactive upon contact with soil.

Uses

Destroy the tissues of the green plants. As contact herbicide before and after crop emergence on plantation and vegetable crops, in orchards, for aquatic weed control, stubble clearing and pasture renovation.

For weed control around trees in orchards and plantations, by directed application. Between rows of growing crops, and as cotton defoliant and dessicant on various crops, particularly potato haulm and sugar cane. Application rates usually range from 250 to 1500g/ha. Used for grass and stubble clearing. Appliation rates up to 2200g/ha.

Toxicity

Oral: acute LD50 for rats 157-129, guinea pigs 30-58 mg/kg 

Skin and eye: acute percutaneous LD50 for rats 911 mg/kg paraquat ion/kg; irritating to skin and eyes (rabbits); absorption through intact human skin is minimal; exposures can cause irritation and a delay in the healing of cuts and wounds; can cause temporary damage to nails; not a skin sensitizer (guinea pigs)