Select Option
Home
A to Z
Search
Terms & Conditions
Support Information
Purchasing & Other Services
Video User Guides
GET ADDITIONAL DATA HERE!

copper (1) oxide
** cuprite ** dicopper oxide ** copper oxide ** red copper oxide ** cuprous oxide ** Translations

Environmental Fate - Ecotoxicology - Human Health - A to Z Index - Home
Further data may be found in the VSDB

SUMMARY

A widely used copper fungicide that is approved for use in many countries including at EU level. It has a low aqueous solubility and a low volatility. As a heavy metal, copper itself will not degrade in the environment. It is moderately toxic to mammals and most biodiversity.

GENERAL INFORMATION Click here for an explantaion of the general chemical status information
for copper (1) oxide

Description: An inorganic-copper fungicide and insecticide also used as a mineral supplement for livestock

Example pests controlled: Various fungal pathogens including those causing mildews and leaf spots.

Example applications: Fruit including mango, avocado, grapes, kiwi, plums, olives; Nuts; Cocoa

Efficacy & activity: Copper based products have been shown to be affective against many fungal pathogens in field trials.

Availability status: Current

Introduction & key dates: 1943, 1998 for non-food applications in US

EC Regulation 1107/2009 (repealing 91/414):
Status Approved
Dossier rapporteur/co-rapporteur France/Germany
Date inclusion expires 31/12/2025
EU Candidate for substitution (CfS) Yes - two 'Persistent-Bioaccumulative-Toxic' criteria
Listed in EU database Yes

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

Chemical structure: Click here for further information on the general chemical status information used on this site
Isomerism None
Chemical formula Cu2O
Canonical SMILES [Cu].[Cu].O
Isomeric SMILES [Cu].[Cu].O
International Chemical Identifier key (InChIKey) BERDEBHAJNAUOM-UHFFFAOYSA-N
International Chemical Identifier (InChI) InChI=1S/2Cu.O/rCu2O/c1-3-2S
2D structure diagram/image available? Yes

General status: Click here for further information on the general chemical status information used on this site
Pesticide type Fungicide, Veterinary substance
Substance group Inorganic compound
Minimum active substance purity 858 g/kg total copper
Known relevant impurities EU 2018 dossier: May contain heavy metals including Pb, Cd, As, Ni, CO, Sb & Hg
Substance origin Synthetic
Mode of action Protective, inhibiting fungal spores and pathogens from entering the host tissues. Multi-site activity.
CAS RN 1317-39-1
EC number 215-270-7
CIPAC number 44.603
US EPA chemical code -
PubChem CID 14830
Molecular mass (g mol-1) 143.08
PIN (Preferred Identification Name) -
IUPAC name dicopper oxide
CAS name cuprous oxide
Other status information -
Relevant Environmental Water Quality Standards -
Herbicide Resistance Classification (HRAC) Not applicable
Herbicide Resistance Classification (WSSA) Not applicable
Insecticide Resistance Classification (IRAC) Not applicable
Fungicide Resistance Classification (FRAC) M1/2
Examples of recorded resistance -
Physical state Brownish red to orange coloured powdery solid
Related substances & organisms -

Formulations:
Property Click here for information on the general product and branding information used on this site Value
Example manufacturers & suppliers of products using this active now or historically -
Example products using this active
  • Perenox
  • Kuprite
  • Copox
UK LERAP status None
Formulation and application details -


ENVIRONMENTAL FATE

for copper (1) oxide

Property Click here for information on the parameters used to describe environmental fate on this site Value Source/Quality Score/Other Information Click here for information on the primary data sources used to populate this database with fate data Interpretation Click here for information on the way in which we interpret environmental fate data
Solubility - In water at 20oC (mg l-1) 0.64 A4 Low
Solubility - In organic solvents at 20oC (mg l-1) 0.000014 A5 - Toluene -
0.00001 A5 - Dichloromethane -
0.000098 A5 - n-Hexane -
0.000012 A5 - Ethyl acetate -
Melting point (oC) Decomposes before melting A5 -
Boiling point (oC) Decomposes before boiling A5 -
Degradation point (oC) 400 A5 -
Flashpoint (oC) Not expected to self ignite; Not highly flammable A5 -
Octanol-water partition coefficient at pH 7, 20oC P 2.75 X 1000 Calculated -
Log P 0.44 A3 Low
Bulk density (g ml-1)/Specific gravity 6.0 Q2 -
Dissociation constant (pKa) at 25oC Not applicable A5 -
Note: No dissociation
Vapour pressure at 20oC (mPa) 1.00 X 10-10 Q1 Low volatility
Henry's law constant at 25oC (Pa m3 mol-1) - - -
GUS leaching potential index Click here for a note on the limitations of the GUS index - - -
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 Value - - -
Note -
Potential for particle bound transport index Click here for a note on the limitations of the potential for particle bound transport index - - -
Maximum UV-vis absorption L mol-1 cm-1 Acidic soln: 205nm=2978, 250nm=1425, 800nm=40, 290nm=265, 295nm=198 A5 -
Surface tension (mN m-1) Not applicable A5 -

Degradation:
Property Click here for information on the parameters used to describe substance degradation Value Source/Quality Score/Other Information Click here for information on the primary data sources used to populate this database with degradation data Interpretation Click here for information on the way in which we interpret substance degradation data
General biodegradability Not biodegradable
Soil degradation (days) (aerobic) DT50 (typical) 365 A3 Very persistent
DT50 (lab at 20oC) - - -
DT50 (field) - - -
DT90 (lab at 20oC) - - -
DT90 (field) - - -
DT50 modelling endpoint - - -
Note EU 2018 dossier: No degradation expected
Dissipation rate RL50 on plant matrix Value - - -
Note -
Dissipation rate RL50 on and in plant matrix Value - - -
Note -
Aqueous photolysis DT50 (days) at pH 7 Value Stable A3 -
Note -
Aqueous hydrolysis DT50 (days) at 20oC and pH 7 Value Stable A3 -
Note -
Water-sediment DT50 (days) - - -
Water phase only DT50 (days) - - -

Soil adsorption and mobility:
Property Click here for information on the parameters used to describe substance adsorption and mobility Value Source/Quality Score/Other Information Click here for information on the primary data sources used to populate this database with adsorption and mobility data Interpretation Click here for information on the way in which we interpret substance adsorption and mobility
Linear Kd - - -
Koc -
Notes and range -
Freundlich Kf - - -
Kfoc -
1/n -
Notes and range -
pH sensitivity -


ECOTOXICOLOGY

for copper (1) oxide

Property Click here for information on the parameters used to describe substance ecotoxicology Value Source/Quality Score/Other Information Click here for information on the primary data sources used to populate this database with ecotoxicology data Interpretation Click here for information on the way in which we interpret substance ecotoxicology
Bio-concentration factor BCF (l kg-1) Low risk A5 Based on LogP < 3 Low potential
CT50 (days) - -
Mammals - Acute oral LD50 (mg kg-1) > 300 A5 Rat Moderate
Mammals - Short term dietary NOEL (mg kg-1) - - -
(ppm diet) - -
Birds - Acute LD50 (mg kg-1) 1183 A5 Coturnix japonica Moderate
Birds - Short term dietary (LC50/LD50) - - -
Fish - Acute 96 hour LC50 (mg l-1) 0.207 A5 Oncorhynchus mykiss Moderate
Fish - Chronic 21 day NOEC (mg l-1) - - -
Aquatic invertebrates - Acute 48 hour EC50 (mg l-1) 0.45 A5 Daphnia magna Moderate
Aquatic invertebrates - Chronic 21 day NOEC (mg l-1) - - -
Aquatic crustaceans - Acute 96 hour LC50 (mg l-1) 0.057 F3 Americamysis bahia High
Sediment dwelling organisms - Acute 96 hour LC50 (mg l-1) - - -
Sediment dwelling organisms - Chronic 28 day NOEC, static, water (mg l-1) - - -
Sediment dwelling organisms - Chronic 28 day NOEC, sediment (mg kg-1) - - -
Aquatic plants - Acute 7 day EC50, biomass (mg l-1) - - -
Non-target plants - - -
- - -
Algae - Acute 72 hour EC50, growth (mg l-1) 0.147 A4 Pseudokirchneriella subcapitata Moderate
Algae - Chronic 96 hour NOEC, growth (mg l-1) - - -
Honeybees Contact acute 48 hour LD50 (μg bee-1) > 22.0 A5 Apis mellifera Moderate
Oral acute 48 hour LD50 (μg bee-1) > 116 A5 Apis mellifera Low
Unknown mode acute 48 hour LD50 (μg bee-1) - - -
Earthworms - Acute 14 day LC50 (mg kg-1) > 862 A5 Eisenia foetida Moderate
Earthworms - Chronic 14 day NOEC, reproduction (mg kg-1) < 15 A5 Eisenia foetida, as Cu, 56 days Moderate
Other soil macro-organisms - e.g. Collembola LR50 / EC50 / NOEC / % Effect - - -
Other arthropod (1) LR50 g ha-1 39200 As Cu, Mortality
A5 Aphidius rhopalosiphi
-
% Effect - - -
Other arthropod (2) LR50 g ha-1 26100 As Cu, Mortality
A5 Typhlodromus pyri
-
% Effect - - -
Soil micro-organisms Nitrogen mineralisation: No significant adverse effect
Carbon mineralisation: No significant adverse effect
A5
Dose: 15.0 kg Cu/ha; 28 days
-
Mesocosm study data NOEAEC mg l-1 - - -
NOEAEC mg l-1 - - -


HUMAN HEALTH AND PROTECTION

for copper (1) oxide

General:
Property Click here for information on the parameters used to describe human health and protection issues Value Source/Quality Score/Other Information Click here for information on the primary data sources used to populate this database with human health and protection data Interpretation 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) - -
Mammals - Acute oral LD50 (mg kg-1) > 300 A5 Rat Moderate
Mammals - Dermal LD50 (mg kg-1 body weight) > 2000 A5 Rat -
Mammals - Inhalation LC50 (mg l-1) 2.92 A5 Rat, 4 hr (nose only) -
Other Mammal toxicity endpoints - -
ADI - Acceptable Daily Intake (mg kg-1bw day-1) 0.15 A5 Dog, SF=100 -
ARfD - Acute Reference Dose (mg kg-1bw day-1) None allocated A5 -
AAOEL - Acute Acceptable Operator Exposure Level (mg kg-1 bw day-1) None allocated A5 -
AOEL - Acceptable Operator Exposure Level - Systemic (mg kg-1bw day-1) 0.072 A5 Rat, SF=30 -
Dermal penetration studies (%) 1-9 A5 concentration dependent -
Dangerous Substances Directive 76/464 List II - -
Exposure Limits [TLV (USA, Sweden): 1 mg/m3], [TLV (US): 1 mg/m3] A2, AC4 -
Exposure Routes Public Negligible risk to bystanders for proposed uses
Occupational Acceptable risk to operators and workers for proposed uses with PPE/PPC
European MRLs Click here for the EU MRL pesticide database
Drinking Water Standards Statutory EU standard for total copper in drinking water: 2 mg/L
Non-statutory WHO guideline for total copper in drinking water: 2 mg/L
UK EA QS database, 2018 -
Drinking Water MAC (μg l-1) 2000 EU Dir 89/778/EC limit as Cu, A5 -

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

-

Respiratory tract irritant Skin irritant Skin sensitiser Eye irritant Phototoxicant

-

General human health issues Potential heavy metal poisoning
Kidneys, lungs and liver toxicant
Harmful if swallowed

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

Handling issues:
Property Click here for information on the parameters used to describe substance handling issues Value Source/Quality Score/Other Information Click here for information on the primary data sources used to populate this database with data on handling issues Interpretation 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 Corrosive
Prevent generation of dust
Not explosive or oxidising
CLP classification 2013 Health: H302, H332, H318
EC Risk Classification Click here to view information omn the EU risk phrases Xn - Harmful: R20, R22
N - Dangerous for the environment: R50-R53
EC Safety Classification Click here to view information omn the EU safety phrases S2, S22, S60, S61
WHO Classification II - Moderately hazardous
US EPA Classification (formulation) - -
UN Number -
Waste disposal & packaging Click here for a description of UN packaging marks -


TRANSLATIONS

for copper (1) oxide

Language Name
English copper (1) oxide
French cuivre de l'oxyde cuivreux
German Dikupferoxid
Danish kobberoxid
Italian ossido di rame
Spanish oxido de cobre
Greek -
Slovenian bakrov oksid
Polish tlenek miedzi (I)
Swedish koppar(I)oxid
Hungarian -
Dutch koper(I)oxide

Record last updated: Wednesday 03 April 2019
Contact: aeru@herts.ac.uk