Copper naphthenate
Last updated: 22/01/2023
(Not known by any other names)
Copper naphthenate is an obsolete general purpose wood preservative. Very little information is available regarding its environmental fate. It has a low toxicity to birds, fish and aquatic invertebrates. It also has a low oral toxicity to mammals.
The following alerts are based on the data in the tables below. An absence of an alert does not imply the substance has no implications for human health, biodiversity or the environment but just that we do not have the data to form a judgement.
Environmental fate
Ecotoxicity
Human health
 
An obsolete general purpose wood preservative used to control both insect pests and fungal pathogens. Also has short-term activity as a mammal repellent.
Subterranean termites; dry wood termites; Wood destroying beetles; Powder post beetles; Carpenter ants; Wood decay fungi; Wood rot; Mould; Mildew; Moss
Utility wood structures such as service poles, wooden bridges; fence posts, lumber
-
Not applicable
1889 introduced; 1911, first commercial use; 1972, first registered USA
Not approved
Not applicable
No UK approval for use
EC Regulation 1107/2009 (repealing 91/414)
Not approved
Not applicable
Not applicable
Not applicable
No
ATAustria
BEBelgium
BGBulgaria
CYCyprus
CZCzech Republic
DEGermany
DKDenmark
EEEstonia
ELGreece
 
 
 
 
 
 
 
 
 
ESSpain
FIFinland
FRFrance
HRCroatia
HUHungary
IEIreland
ITItaly
LTLithuania
LULuxembourg
 
 
 
 
 
 
 
 
 
LVLatvia
MTMalta
NLNetherlands
PLPoland
PTPortugal
RORomania
SESweden
SISlovenia
SKSlovakia
 
 
 
 
 
 
 
 
 
ISIceland
NONorway
 
 
 
 
 
 
 
 
 
Mixed stereochemistry
C₂₂H₁₄CuO₄
CCC1CCC(CC1)CCC(=O)[O-].CCC1CCC(C1)CCC(=O)[O-].[Cu+2]
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SEVNKWFHTNVOLD-UHFFFAOYSA-L
InChI=1S/C11H20O2.C10H18O2.Cu/c1-2-9-3-5-10(6-4-9)7-8-11(12)13;1-2-8-3-4-9(7-8)5-6-10(11)12;/h9-10H,2-8H2,1H3,(H,12,13);8-9H,2-7H2,1H3,(H,11,12);/q;;+2/p-2
Yes
Insecticide, Fungicide, Wood preservative, Repellant
Organometal compound; Naphthalene compound; Organocopper fungicide
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-
Synthetic
Absorbed copper disrupts the enzyme systems of pathogens. Multi-site activity.
1338-02-9
215-657-0
44
023102
15607801
No data found
405.9
copper naphthenate
copper naphthenate
copper naphthenate
Obsolete; Potential groundwater pollutant
-
Not applicable
Not applicable
Not known
M01
Not applicable
Dark green viscous liquid with pungent odour
Cu-nap Cuprinol Troyson copper Perm-E8 Cop-R-Nap
Usually supplied as a ready-to-use liquid
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-
-
-
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150
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38
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-
-
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-
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-
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Soil adsorption and mobility
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Cannot be calculated
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None
Terrestrial ecotoxicology
> 2000
Rat
Low
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-
-
-
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> 2250
Colinus virginianus
Low
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-
-
-
-
-
-
-
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-
-
-
-
-
-
> 800
Oncorhynchus mykiss
Low
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-
-
> 4000
Daphnia magna
Low
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-
-
-
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-
-
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-
HUMAN HEALTH AND PROTECTION
High (class III)
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> 2000
Rat
Low
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EU MRL pesticide database 
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Carcinogen
Endocrine disruptor
?Possibly, status not identified
A0 A = Chromosome aberration (EFSA database) 0 = No data
; B0 B = DNA damage/repair (EFSA database) 0 = No data
; C0 C = Gene mutation (EFSA database) 0 = No data
; D0 D = Genome mutation (EFSA database) 0 = No data
; E0 E = Unspecified genotoxicity type (miscellaneous data source) 0 = No data
XNo, known not to cause a problem
Reproduction / development effects
Acetyl cholinesterase inhibitor
Neurotoxicant
No data found
XNo, known not to cause a problem
?Possibly, status not identified
Respiratory tract irritant
Skin irritant
Skin sensitiser
✓Yes, known to cause a problem
✓Yes, known to cause a problem
No data found
Eye irritant
Phototoxicant
 
✓Yes, known to cause a problem
No data found
 
Highly toxic if ingested Possible kidney & liver toxicant May cause anemia May cause dermatitis, skin ulcers & cracking of the skin
Flammable, combustible Will emit toxic fumes in a fire
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1993
Packaging Group III (minor danger)
copper naphthenate
Naphtenate de cuivre
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Record last updated:
22/01/2023
Contact:
aeru@herts.ac.uk
Please cite as:
Lewis, K.A., Tzilivakis, J., Warner, D. and Green, A. (2016) An international database for pesticide risk assessments and management. Human and Ecological Risk Assessment: An International Journal , 22 (4), 1050-1064. DOI: 10.1080/10807039.2015.1133242