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dicuat
** diquat ** diquat ion ** reglone ** reglon ** Traducciones

Destino ambiental - Ecotoxicología - La salud humana - A a Z Indice - Inicio

RESUMEN

Diquat is an EU approved contact desiccant and herbicide that is normally used as the dibromide salt. As the salt it is highly soluble in water, has a low risk of leaching to groundwater and is volatile. It is very persistent in soil but rapidly degrades in aquatic systems. The dibromide salt is moderately toxic to mammals and is a known irritant but no other significant human health issues have been identified. The dibromide salt is moderately toxic to birds, most aquatic organisms, honeybees and earthworms.

INFORMACIÓN GENERAL Click here for an explantaion of the general chemical status information
for diquat

Descripción: A non-residual bupyridyl herbicide and crop desiccant, normally used as the dibromide salt, to control broad-leaved weeds and grasses

Ejemplos de plagas controladas: Water lettuce; Water hyacynth; Duckweed; Pennywort; Annual bluegrass; Fescue; Henbit; Buttercup

Ejemplos de aplicaciones: Potatoes; Oilseed rape; Fruit including apples, pears, peaches, plums, citrus, olive, grapes; Tomatoes; Sunflowers; Vegetables including beans & peas, carrots, onions, chicory; Sugarbeet

Eficacia y actividad: -

Availability status: Current

Introduction & key dates: -

CEE Regulación 1107/2009 ( 91/414):
Estado Not approved
Dossier rapporteur/co-rapporteur UK/Sweden
Date inclusion expires Expired
UE Candidatas a sustitución No aplicable
Incluido en la base de datos de la UE

Approved for use () or known to be used () in the following European countries: Click to access a note on the approvals information on this site

AT

BE

BG

CY

CZ

DE

DK

EE

EL

ES

FI

FR

HR

HU

IE

IT

LT

LU

LV

MT

NL

PL

PT

RO

SE

SI

SK

UK

Also used in: Australia

Estructura química: Click here for further information on the general chemical status information used on this site
Isomerism -
Fórmula química C12H12N2
Canonical SMILES C1C[N+]2=CC=CC=C2C3=CC=CC=[N+]31
Isomeric SMILES No data
International Chemical Identifier Key (InChIKey) SYJFEGQWDCRVNX-UHFFFAOYSA-N
International Chemical Identifier (InChI) InChI=1S/C12H12N2/c1-3-7-13-9-10-14-8-4-2-6-12(14)11(13)5-1/h1-8H,9-10H2/q+2
¿Diagrama de estructura 2D / imagen disponible?

Click to access the Cambridge Crystallographic Data Centre (CCDC) website
Cambridge Crystallographic Data Centre diagrams:
Nombre Común Relación Vínculo
Diquat dibromide Derivative Click here for the CCDC structure diagram

Estado general: Click here for further information on the general chemical status information used on this site
Tipo de pesticida Herbicida
Grupo químico Bipyridylium
Minimum active substance purity -
Known relevant impurities -
Sustancias de origen Sintéticas
Modo de acción Non-selective, contact absorbed through foliage, some desiccant action. Photosystem I (electron transport) inhibitor.
CAS RN 2764-72-9
CEE número 220-433-0
Número CIPAC 55
EPA américaine chimiques de code 032202
PubChem CID 6795
Masa molecular (g mol-1) 184.24
PIN (Preferred Identification Name) 6,7-dihydrodipyrido[1,2-a:2',1'-c]pyrazine-5,8-diium
Nombre IUPAC 9,10-dihydro-8a,10a-diazoniaphenanthrene
Nombre CAS 6,7-dihydrodipyrido[1,2-a:2',1'-c]pyrazinediium
Otra información de estado Potential groundwater contaminant; PAN listed Highly Hazardous Chemical
Relevant Environmental Water Quality Standards -
Herbicide Resistance Classification (HRAC) D
Herbicide Resistance Classification (WSSA) 22
Insecticide Resistance Classification (IRAC) No aplicable
Fungicide Resistance Classification (FRAC) Note applicable
Examples of recorded resistance Monochoria korsakowii
Estado físico Yellow crystalline solid
Related substances & organisms

Formulaciones:
Propiedad Click here for information on the general product and branding information used on this site Valor
Example manufacturers & suppliers of products using this active now or historically -
Example products using this active -
Estado de UK LERAP None (may vary with mixtures)
Formulation and application details Normally formulated as the dibromide salt.


DESTINO AMBIENTAL

for diquat

Propiedad Click here for information on the parameters used to describe environmental fate on this site Valor Fuente/Cuenta de Cualidad/Otra Información Click here for information on the primary data sources used to populate this database with fate data Interpretación Click here for information on the way in which we interpret environmental fate data
Solubilidad - En aqua en 20oC (mg l-1) 718000 A5 Alto
Solubilidad - en solventes organicos en 20oC (mg l-1) 25000 A5 - Metanol -
100 A5 - Acetona -
100 A5 - Hexano -
100 A5 - Acetato de etilo -
Punto de fusión (oC) Decomposes before melting A5 -
Punto de ebullición (oC) Decomposes before boiling A5 -
El punto de degradación (oC) - - -
Punto de inflamación (oC) - - -
Octanol-aqua coeficiente de particiónat en pH 7, 20oC P 2.51 X 10-05 Calculado -
Log P -4.6 A3 Bajo
Masa densidad (g ml-1)/Peso específico 1.61 A5 -
Disociación constante (pKa) at 25oC - - -
Nota:
Presión de vapor en 20oC (mPa) 1.00 X 10-03 A4 Baja volatilidad
Constante de Henry a 25oC (Pa m3 mol-1) 5.0 X 10-12 A3 No volátil
Indice de potencial de lixiviación GUS Click here for a note on the limitations of the GUS index -6.85 Calculado Bajo posibilidad de lixiviación
SCI-GROW groundwater index (μg l-1) for a 1 kg ha-1 or 1 l ha-1 application rate Click here for a note on the limitations of the SCI-GROW index Valor 5.35 X 10-03 Calculado -
Nota Estimated concentrations of chemicals with Koc values greater than 9995 ml g-1 are beyond the scope of the regression data used in SCI-GROW development. If there are concerns for such chemicals, a higher tier groundwater exposure assessment should be considered, regardless of the concentration returned by SCI-GROW
Potencial para transportar de 'particle bound' Click here for a note on the limitations of the potential for particle bound transport index - Calculado Alto
Maximum UV-vis absorption L mol-1 cm-1 - - -
Surface tension (mN m-1) - - -

Degradación:
Propiedad Click here for information on the parameters used to describe substance degradation Valor Fuente/Cuenta de Cualidad/Otra Información Click here for information on the primary data sources used to populate this database with degradation data Interpretación Click here for information on the way in which we interpret substance degradation data
Biodegradabilidad general -
Degradación de suelo (días) (aerobic) DT50 (típico) 2345 A5 Persistente muy alta
DT50 (laboratorio en 20oC) 2345 A5 Persistente muy alta
DT50 (campo) - - -
DT90 (laboratorio en 20oC) 10478 A5 -
DT90 (campo) - - -
Endpoint de modelado DT50 - - -
Nota EU data lab studies DT50 range 598 to >1000 days, DT90 range from 1985 to 20509 days
Dissipation rate RL50 on plant matrix Valor - - -
Nota -
Dissipation rate RL50 on and in plant matrix Valor - - -
Nota -
Acuoso fotólisis DT50 (días) en pH 7 Valor 7 A5 Moderado rápido
Nota -
Acuoso hidrólisis DT50 (días) en 20oC y pH 7 Valor Estable A5 -
Nota Stable at all environmentally relevant pH's
Aqua-Sedimento DT50 (días) >1000 A5 -
Fase de agua sola DT50 (días) 1.0 A5 Moderado rápido

De absorción del suelo y la movilidad:
Propiedad Click here for information on the parameters used to describe substance adsorption and mobility Valor Fuente/Cuenta de Cualidad/Otra Información Click here for information on the primary data sources used to populate this database with adsorption and mobility data Interpretación Click here for information on the way in which we interpret substance adsorption and mobility
Lineal Kd - E4 No Móvil
Koc 2185000
Notas y rango Industry data
Freundlich Kf 23099 A5 No Móvil
Kfoc 1078792
1/n 0.869
Notas y rango EU dossier Kf range 144-70308 mL.g, Kfoc range 6857-2511015 mL/g, 1/n range 0.589-1065, soils=4
pH senbsibilidad No

Key metabolites:
Metabolito Medio de formación Maximó Calculado de Fracción Ocurrencia 1107/2009 Importancia Click here for further information on 1107/2009 relevancy
1-oxo-1,2,3,4-tetrahydropyrido(1,2-a)pyrazin-5-ium (Ref: R32245) Suelo   -   -

Other known metabolites:
Metabolite name and reference Aliases Medio de formación / Rate Maximó Calculado de Fracción Ocurrencia Metabolising enzymes
1,2,3,4-tetrahydro-1-oxopyrido(1,2-a)pyrazin-5-ium
(Ref: R32245)
TOPPS Plant; Poultry; Eggs; Surface water (photolysis); Soil (minor) - -


ECOTOXICOLOGÍA

for diquat

Propiedad Click here for information on the parameters used to describe substance ecotoxicology Valor Fuente/Cuenta de Cualidad/Otra Información Click here for information on the primary data sources used to populate this database with ecotoxicology data Interpretación Click here for information on the way in which we interpret substance ecotoxicology
Factor de la bio-concentración BCF (l kg-1) Low risk A5 Based on LogP < 3 Bajo potencial
CT50 (días) - -
Mamíferos - Agudos oral LD50 (mg kg-1) 214 A5 Rata Moderado
Mamíferos - a corto plazo NOEL (mg kg-1) 0.5 E4 Rata Alto
(ppm dieta) - -
Pájaros/aves - Agudos LD50 (mg kg-1) 83 A5 Anas platyrhynchos Alto
Birds - Short term dietary (LC50/LD50) 721 mg kg feed-1 A5 Coturnix japonica -
Pez - agudo 96 hora LC50 (mg l-1) 21.0 A5 Oncorhynchus mykiss Moderado
Pez - Crónico 21 días NOEC (mg l-1) 0.12 A5 Oncorhynchus mykiss< Moderado
Invertebrados acuáticos - Agudos 48 hora EC50 (mg l-1) 1.2 A5 Daphnia magna Moderado
Invertebrados acuáticos - Crónicos 21 días NOEC (mg l-1) 0.125 A5 Daphnia magna Moderado
Crustáceos acuáticos - Agudos 96 hora LC50 (mg l-1) - - -
Sediment dwelling organisms - Agudos 96 hora LC50 (mg l-1) - - -
Sediment dwelling organisms - Crónicos 28 día NOEC, estático, agua (mg l-1) - - -
Sediment dwelling organisms - Crónicos 28 día NOEC, sedimento (mg kg-1) - - -
Plantas acuáticas - Agudos 7 día EC50, biomasa (mg l-1) - - -
Non-target plants - - -
- - -
Algas - Agudos 72 hora EC50, crecimiento (mg l-1) 0.011 A5 Psuedokirchneriella subcapitata Moderado
Algas - Crónicos 96 hora NOEC, crecimiento (mg l-1) - - -
Abejas mielíferas Contacto aguda 48 hora LD50 (μg abeja-1) 60 A5 as diquat ion Moderado
Oral aguda 48 hora LD50 (μg abeja-1) 13 A5 as diquat ion Moderado
Modo desconocido aguda 48 hora LD50 (μg abeja-1) - - -
Lombrices - Agudos 14 día LC50 (mg kg-1) 94.3 A5 Eisenia foetida Moderado
Lombrices - Crónicos 14 día NOEC, reproducción (mg kg-1) - - -
Other soil macro-organisms - e.g. Collembola LR50 / EC50 / NOEC / % Causalidad - - -
Otro arthropoda (1) LR50 g ha-1 - - -
% Causalidad - - -
Otro arthropoda (2) LR50 g ha-1 - - -
% Causalidad - - -
Soil micro-organisms Nitrogen mineralisation: No significant adverse effect
Carbon mineralisation: No significant adverse effect
A5
Dose: >160 mg kg-1 soil
-
Mesocosm study data NOEAEC mg l-1 - - -
NOEAEC mg l-1 - - -


LA SALUD HUMANA Y PROTECCIÓN

for diquat

General:
Propiedad Click here for information on the parameters used to describe human health and protection issues Valor Fuente/Cuenta de Cualidad/Otra Información Click here for information on the primary data sources used to populate this database with human health and protection data Interpretación Click here for information on the way in which we interpret human health and protection data
Threshold of Toxicological Concern (Cramer Class) Click here for a note on the limitations of the Cramer class High (class III) - -
Mamíferos - Agudos oral LD50 (mg kg-1) 214 A5 Rata Moderado
Mammals - Dermal LD50 (mg kg-1 body weight) > 400 V3 Rat -
Mammals - Inhalation LC50 (mg l-1) - - -
Other Mammal toxicity endpoints - -
Consumo cada día aceptable (mg kg-1p.c. días-1) 0.002 A5 -
ARfD - Acute Reference Dose (mg kg-1p.c. días-1) Ningunos asignaron A5 -
AAOEL - Acute Acceptable Operator Exposure Level (mg kg-1 bw day-1) - - -
El nivel de exposición del operador (AOEL) sistemíco (mg kg-1p.c. días-1) 0.001 A5 -
Estudios den la absorción cutánea (%) - - -
Directivo 76/464 Sustancias Peligrosas - - -
Limites de exposiciones - - -
Exposure Routes Public Slight risk of dietary exposure
Occupational -
European MRLs Click here for the EU MRL pesticide database
Drinking Water Standards - - -
Drinking Water MAC (μg l-1) - - -

Health issues:
Carcinogen Mutágeno Endocrine disrupter Reproduction / development effects Cholinesterase inhibitor Neurotoxicant

-

-

Respiratory tract irritant Skin irritant Skin sensitiser Eye irritant Phototoxicant

-

Cuestiones generales de la salud humana Potential liver, kidney, stomach and intestine toxicant

: Yes, known to cause a problem
: No, known not to cause a problem
: Possibly, status not identified
- : No data found

Handling issues:
Propiedad Click here for information on the parameters used to describe substance handling issues Valor Fuente/Cuenta de Cualidad/Otra Información Click here for information on the primary data sources used to populate this database with data on handling issues Interpretación Click here for information on the way in which we interpret data on handling issues
General Click here for a description of the International Maritime Dangerous Goods (IMDG) codes IMDG Transport Code is usually 8
CLP classification 2013 Health: H335, H302, H317, H330, H372, H315, H319
Environment: H400, H410
CEE clasificación de riesgos Click here to view information omn the EU risk phrases T+ - Very toxic: R26
T - Toxic: R48/25
Xn - Harmful: R22, R43
Xi - Irritant: R36/37/38
N - Dangerous for the environment: R50, R53
CEE clasificación sin riesgos Click here to view information omn the EU safety phrases S1/2, S28, S36/37/39, S45, S60, S61
Clasificación de OSM II - Peligroso mediano
US EPA Classification (formulation) II - Warning - Moderately toxic
Número de las NU 2781 as active, products usually 1760
Waste disposal & packaging Click here for a description of UN packaging marks Packaging Group III (minor danger)


TRADUCCIONES

for diquat

Idioma Nombre
Inglés diquat
Francés diquat
Alemán Deiquat
Danés diquat
Italiano diquat
Español dicuat
Griego diquat
Esloveno dikvat
Polaco dikwatu
Sueco dikvat
Húngaro diquat
Holandés diquat

Última actualización del registro: Wednesday 03 April 2019
Contacto: aeru@herts.ac.uk