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Chemical Identification
Common Name
Diquat dibromide
中文通用名
敌草快
IUPAC
9,10-dihydro-8a,10a-diazoniaphenanthrene dibromide
or
6,7-dihydrodipyrido[1,2-a:2′,1′-c]pyrazine-5,8-diium dibromide
or
1,1′-ethylene-2,2′-bipyridyldiylium dibromide
CAS
6,7-dihydrodipyrido[1,2-a:2′,1′-c]pyrazinediium dibromide
CAS No.
85-00-7
Molecular Formula
C12H12Br2N2
Molecular Structure
Category
Activity
Herbicide
Premix
DIQUAT DIBROMIDE+PARAQUAT DICHLORIDE
Liquid. Premix Parters: cymoxanil;
Physical Properties
Dark brown liquid, odorless. Stable in neutral or acid solutions; decomposes in alkaline solutions. Slightly soluble in alcohols, hydroxylic solvents. Practically insoluble in nonpolar organic solvents.
Toxicology
(Rat): Oral LD50 600 mg/kg b.w. (Rabbit): Dermal LD50 260 mg/kg b.w. (Rat): Inhalation LC50 (4 h) 0.121 mg/l air
Environmental Profile
HAZARDS: Fish: LC50 (96 h) 21 mg/l (rainbow trout); 67 mg/l (mirror carp). Bird: Oral LD50 155 mg/kg (mallard duck). Bee: Oral LD50 22 μg/bee; nontoxic WATER SOLUBILITY: 700 g/l at 20°C
Transport Information
Signal Word:WARNING; Hazard Class:II(Moderately hazardous)

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