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phosphonic acid
** orthophosphorus acid ** Translations

Environmental Fate - Ecotoxicology - Human Health - A to Z Index - Home

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

Description: Chemical transformation product

Availability status: Not applicable

Introduction & key dates: -

EC Regulation 1107/2009 (repealing 91/414):
Status Not applicable
Dossier rapporteur/co-rapporteur Not applicable
Date inclusion expires Not applicable
EU Candidate for substitution (CfS) Not applicable
Listed in EU database No

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 -
Chemical formula -
Canonical SMILES O[P+](=O)O
Isomeric SMILES No data
International Chemical Identifier key (InChIKey) ABLZXFCXXLZCGV-UHFFFAOYSA-N
International Chemical Identifier (InChI) InChI=1S/H3O3P/c1-4(2)3/h4H,(H2,1,2,3)
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 Metabolite
Metabolite Type Soil, Surface water, Groundwater, Sediment
Substance group Inorganic compound
Minimum active substance purity -
Known relevant impurities -
Substance origin Natural
Mode of action Not applicable
CAS RN 13598-36-2
EC number 237-066-7
CIPAC number -
US EPA chemical code -
PubChem CID -
Molecular mass (g mol-1) 81.99
PIN (Preferred Identification Name) -
IUPAC name phosphonic acid
CAS name phosphonic acid
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) Not applicable
Examples of recorded resistance -
Physical state Clear, colourless, viscous liquid
Related substances & organisms -

Can be a metabolite of:
Parent Formation medium Estimated maximum occurrence fraction 1107/2009 relevancy Click here for further information on 1107/2009 relevancy
fosetyl-aluminium Soil   1.00   Major fraction, Relevant
disodium phosphonate Soil     Relevant

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 -
UK LERAP status Not applicable
Formulation and application details -


ENVIRONMENTAL FATE

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) - - -
Solubility - In organic solvents at 20oC (mg l-1) - - -
Melting point (oC) - - -
Boiling point (oC) - - -
Degradation point (oC) - - -
Flashpoint (oC) Not expected to self ignite; Not highly flammable E3 -
Octanol-water partition coefficient at pH 7, 20oC P - - -
Log P - - -
Bulk density (g ml-1)/Specific gravity - - -
Dissociation constant (pKa) at 25oC 2.0 A5 -
Note: pKa(2)=6.59
Vapour pressure at 20oC (mPa) - - -
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 1.93 Calculated Transition state
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 7.46 X 10-02 Calculated -
Note -
Potential for particle bound transport index Click here for a note on the limitations of the potential for particle bound transport index - Calculated High
Maximum UV-vis absorption L mol-1 cm-1 - - -
Surface tension (mN m-1) - - -

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 -
Soil degradation (days) (aerobic) DT50 (typical) 133.7 A5 Persistent
DT50 (lab at 20oC) 133.7 A5 Persistent
DT50 (field) - - -
DT90 (lab at 20oC) 475.1 A5 -
DT90 (field) - - -
DT50 modelling endpoint - - -
Note EU dossier lab studies DT50 range 27.5-1000 days, DT90 range 91.4-1500 days, Soils=7
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 - - -
Note -
Aqueous hydrolysis DT50 (days) at 20oC and pH 7 Value - - -
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 28.9 A5 Slightly mobile
Koc 1337
Notes and range EU Fosety 2017 dossier Kd range 3.1-87.0 mL/g, Koc range 228-5429 mL/g, Soils=10
Freundlich Kf 25.5 A5 Slightly mobile
Kfoc 1243
1/n 0.69
Notes and range EU Fosety 2017 dossier Kf range 4.2-82.4 mL/g, Kfoc range 193-3038 mL/g, 1/n range 0.53-0.92, Soils=10
pH sensitivity None


ECOTOXICOLOGY

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) - - -
CT50 (days) - -
Mammals - Acute oral LD50 (mg kg-1) > 2950 A5 Rat Low
Mammals - Short term dietary NOEL (mg kg-1) - - -
(ppm diet) - -
Birds - Acute LD50 (mg kg-1) > 675 A5 Colinus virginianus Moderate
Birds - Short term dietary (LC50/LD50) - - -
Fish - Acute 96 hour LC50 (mg l-1) > 28.6 A5 Oncorhynchus mykiss Moderate
Fish - Chronic 21 day NOEC (mg l-1) - - -
Aquatic invertebrates - Acute 48 hour EC50 (mg l-1) > 29.7 A5 Daphnia magna Moderate
Aquatic invertebrates - Chronic 21 day NOEC (mg l-1) - - -
Aquatic crustaceans - Acute 96 hour LC50 (mg l-1) - - -
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) 29.4 A5 Selenastrum capricornutum Low
Algae - Chronic 96 hour NOEC, growth (mg l-1) - - -
Honeybees (Apis spp.) Contact acute LD50 (worst case from 24 , 48 and 72 hour values - μg bee-1) > 29.7 A5 Apis mellifera Moderate
Oral acute LD50 (worst case from 24 , 48 and 72 hour values - μg bee-1) > 212 A5 Apis mellifera Low
Unknown mode acute LD50 (worst case from 24 , 48 and 72 hour values - μg bee-1) - - -
Bumblebees (Bombus spp.) Contact acute LD50 (worst case from 24 , 48 and 72 hour values - μg bee-1) - - -
-
Oral acute LD50 (worst case from 24 , 48 and 72 hour values - μg bee-1) - - -
-
Mason bees (Osmia spp.) Contact acute LD50 (worst case from 24 , 48 and 72 hour values - μg bee-1) - - -
Oral acute LD50 (worst case from 24 , 48 and 72 hour values - μg bee-1) - - -
Other pollinators (1) Acute LD50 (worst case from 24 , 48 and 72 hour values - μg insect-1) - - -
Mode of exposure -
Other pollinators (2) Acute LD50 (worst case from 24 , 48 and 72 hour values - μg insect-1) - - -
Mode of exposure -
Earthworms - Acute 14 day LC50 (mg kg-1) - - -
Earthworms - Chronic 14 day NOEC, reproduction (mg kg-1) - - -
Other soil macro-organisms - e.g. Collembola LR50 / EC50 / NOEC / % Effect - - -
Other arthropod (1) LR50 g ha-1 - - -
% Effect - - -
Other arthropod (2) LR50 g ha-1 - - -
% Effect - - -
Soil micro-organisms - - -
Mesocosm study data NOEAEC mg l-1 - - -
NOEAEC mg l-1 - - -


HUMAN HEALTH AND PROTECTION

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) > 2950 A5 Rat Low
Mammals - Dermal LD50 (mg kg-1 body weight) - - -
Mammals - Inhalation LC50 (mg l-1) - - -
Other Mammal toxicity endpoints - -
ADI - Acceptable Daily Intake (mg kg-1bw day-1) 2.25 A5 -
ARfD - Acute Reference Dose (mg kg-1bw day-1) - - -
AAOEL - Acute Acceptable Operator Exposure Level (mg kg-1 bw day-1) - - -
AOEL - Acceptable Operator Exposure Level - Systemic (mg kg-1bw day-1) - - -
Dermal penetration studies (%) - - -
Dangerous Substances Directive 76/464 - - -
Exposure Routes Public -
Occupational -
European MRLs Click here for the EU MRL pesticide database
Drinking Water Standards - - -
Drinking Water MAC (μg l-1) - - -

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

A0; B0; C0; D0; E3

-

-

-

-

Respiratory tract irritant Skin irritant Skin sensitiser Eye irritant Phototoxicant

-

-

General human health issues May induce conjunctivitis, dermatitis and/or pulmonary edema
Possible liver toxicant
Key: Genotoxicity
A: Chromosome aberration (EFSA database)
B: DNA damage/repair (EFSA database)
C: Gene mutation (EFSA database)
D: Genome mutation (EFSA database)
E: Unspecified genotoxicity type (miscellaneous data source)
0: No data
1: Positive
2: Mixed/ambiguous results
3: Negative
Key: Other
: 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
Emits toxic fumes in a fire
CLP classification 2013 Health: H314
EC Risk Classification Click here to view information omn the EU risk phrases H - Handling risks: R34
EC Safety Classification Click here to view information omn the EU safety phrases S1/2, S26, S45
WHO Classification - -
UN Number 1805
Waste disposal & packaging Click here for a description of UN packaging marks Packaging group III (medium danger)


TRANSLATIONS

Language Name
English phosphonic acid
French -
German -
Danish -
Italian -
Spanish -
Greek -
Slovenian -
Polish -
Swedish -
Hungarian -
Dutch -

Record last updated: Wednesday 04 April 2018
Contact: aeru@herts.ac.uk