Paraquat

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NameDescriptionContent

Paraquat

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Structure Formula:

Common Name: Paraquat (BSI, E-ISO, (m) F-ISO, ANSI, WSSA, JMAF)
CAS No.: 4685-14-7
CAS Name: 1,1' -dimethyl-4,4' -bipyridinium
Molecular Formula: C₁₂H₁₄N₂
Agrochemical Type: Herbicide, bipyridylium
Mode of Action: Broad-spectrum, non-residual activity with contact and some desiccant action. Photosystem I (electron transport) inhibitor. Absorbed by the foliage, with some translocation in the xylem.

Specification for Paraquat 42% TK
ITEMS	STANDARDS
Appearance	Homogeneous liquid
Content	≥42 %
Water insolubles	≤0.5%
pH	2~6
Free 4,4'-bipyridyl	≤0.1%
Specification for Paraquat 20% SL
ITEMS	STANDARDS
Appearance	Homogeneous, dark blue to green liquid
Content of a.i.	≥20%
Water insolubles	≤0.3%
pH	4.0~7.0
Free 4,4'-bipyridyl	≤0.1%
Solution stability　(as 5% aqueous solution)	No color change;
	Sediment maxium: trace;
	Solid particles: pass throug 45μm sieve.
Stability at 0℃	The volume of solid and/or liquid which separates shall not be more than 0.3 ml.