Mercuric oxide |
Last updated: 23/05/2024
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(Also known as: mercury oxide; mercury monoxide; red mercury) |
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 |
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An obsolete multi-use fungicide that was used to control canker on trees and as a protectant following pruning or bark injuries |
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Canker; Pruning bark diseases |
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Fruit and ornamental trees |
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Considered obsolete but may be available in some countries |
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Not approved |
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Not applicable |
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No UK approval for use |
EC Regulation 1107/2009 (repealing 91/414) |
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Not approved |
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Not applicable |
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Not applicable |
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Not applicable |
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Yes |
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ATAustria |
BEBelgium |
BGBulgaria |
CYCyprus |
CZCzech Republic |
DEGermany |
DKDenmark |
EEEstonia |
ELGreece |
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ESSpain |
FIFinland |
FRFrance |
HRCroatia |
HUHungary |
IEIreland |
ITItaly |
LTLithuania |
LULuxembourg |
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LVLatvia |
MTMalta |
NLNetherlands |
PLPoland |
PTPortugal |
RORomania |
SESweden |
SISlovenia |
SKSlovakia |
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ISIceland |
NONorway |
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None |
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HgO |
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O=[Hg] |
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No data |
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UKWHYYKOEPRTIC-UHFFFAOYSA-N |
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InChI=1S/Hg.O |
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Yes |
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Fungicide, Other substance |
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Wound protectant, Bactericide |
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Inorganic compound |
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- |
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Natural (but very rare) |
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Broad spectrum, strong toxin to most living organism |
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Occurs naturally in the mineral montroydite but this is very rare |
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Produced by heating mercury in oxygen at roughly 350 C or by pyrolysis of mercury(II) nitrate |
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Crop protection |
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Canker; Pruning bark diseases |
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Fruit and ornamental trees |
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- |
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21908-53-2 |
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1344-45-2 |
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244-654-7 |
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None allocated |
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052102 |
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30856 |
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No data found |
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216.61 |
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mercury(II) oxide |
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mercury(II) oxide |
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mercury oxide |
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Banned in most countries due to high toxicity; Chemical subject to GB PIC regulations |
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Not applicable |
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Not applicable |
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Not applicable |
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NC |
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Red coloured powdery solid |
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Usually painted on to infected or damaged wood |
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53.0 |
L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source |
Moderate |
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500 |
L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source |
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As this parameter is not normally measured directly, a surrogate measure is used: ‘Photochemical oxidative DT₅₀’. Where data is available, this can be found in the Fate Indices section below. |
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Soil adsorption and mobility |
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None
Terrestrial ecotoxicology |
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18.0 |
L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source Rat |
High |
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HUMAN HEALTH AND PROTECTION |
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High (class III) |
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18.0 |
L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source Rat |
High |
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315 |
Rat |
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Intraperitoneal LD₅₀ = 4.5 mg kg⁻¹ |
Rat |
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Carcinogen |
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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 ; E1 E = Unspecified genotoxicity type (miscellaneous data source) 1 = Positive |
No data found |
Reproduction / development effects |
Acetyl cholinesterase inhibitor |
Neurotoxicant |
✓Yes, known to cause a problem |
XNo, known not to cause a problem |
✓Yes, known to cause a problem |
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 |
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✓Yes, known to cause a problem |
No data found |
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Highly toxic by all exposure routes Very short exposure to small quantities may cause death or permanent injury CLP data - suspected carcinogen via inhalation |
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Fumes from fire may contain poisonous mercury vapour Corrosive Substance is light sensitive IMDG Transport Hazard Class 6.1 |
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Health: H351 |
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Ib (Highly hazardous) |
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UN1641 |
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Packaging Group II (moderate danger) |
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mercuric oxide |
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oxyde mercurique |
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Record last updated: |
23/05/2024 |
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 |