Ferric phosphate

Ferric phosphate	Last updated: 06/01/2021
(Also known as: iron phosphate; E33; ferric orthophosphate)

GENERAL INFORMATION

Description

Used to control a variety of slugs and snails on a wide range of foods and ornamental crops

Example pests controlled

Deroceras reticulatum, Derceras laeve and Arion subfuscus

Example applications

Food and non-food crops

Efficacy & activity

Availability status

Current

Introduction & key dates

1997, USA

UK regulatory status

UK COPR regulatory status

Approved

Date COPR inclusion expires

31/12/2030

UK LERAP status

None (may vary with mixtures)

EC Regulation 1107/2009 (repealing 91/414)

EC Regulation 1107/2009 status

Approved

Dossier rapporteur/co-rapporteur

Germany/Poland

Date EC 1107/2009 inclusion expires

31/12/2030

EU Candidate for substitution (CfS)

Listed in EU database

Yes

Approved for use (✓) under EC 1107/2009 in the following EU Member States

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
✓		✓	✓	✓		✓	✓	✓

Also used in

Chemical structure

Isomerism

None

Chemical formula

FePO₄

Canonical SMILES

[O-]P(=O)([O-])[O-].[Fe+3]

Isomeric SMILES

No data

International Chemical Identifier key (InChIKey)

WBJZTOZJJYAKHQ-UHFFFAOYSA-K

International Chemical Identifier (InChI)

InChI=1S/Fe.H3O4P/c;1-5(2,3)4/h;(H3,1,2,3,4)/q+3;/p-3

2D structure diagram/image available?

Yes

General status

Pesticide type

Molluscicide

Substance group

Inorganic compound

Minimum active substance purity

703 g kg⁻¹

Known relevant impurities

EU dossier - Pb: 3mg kg⁻¹; Hg: 0.1 mg kg⁻¹; Cd: 1.0 mg kg⁻¹

Substance origin

Synthetic

Mode of action

Contact action, interferes with calcium metabolism in slug / snail stomach causing it to stop feeding

CAS RN

10045-86-0

EC number

233-149-7

CIPAC number

629

US EPA chemical code

034903

PubChem CID

24861

Molecular mass

150.82

PIN (Preferred Identification Name)

iron(III) phosphate

IUPAC name

Ferric phosphate

CAS name

Ferric phosphate

Other status information

Note a chelating substance is usually a constituent of these products which should be considered in environmental assessments.

Relevant Environmental Water Quality Standards

Herbicide Resistance Classification (HRAC)

Not applicable

Herbicide Resistance Classification (WSSA)

Not applicable

Insecticide Resistance Classification (IRAC)

None allocated

Fungicide Resistance Classification (FRAC)

Not applicable

Examples of recorded resistance

Physical state

White to buff coloured powder

Related substances & organisms

ethylenediamine tetraacetic acid

Formulations

Property

Value

Example manufacturers & suppliers of products using this active now or historically

Neu 1165M Slug and Snail Bait
Ferramol Slug Killer
Slug Death XL
Ferrox

Example products using this active

Growing Success Organics Ltd
Neudorff GmbH
Bayer CropScience
Vitax Limited

Formulation and application details

Usually supplied as pellets or granules.

ENVIRONMENTAL FATE

Property

Value

Source; quality score; and other information

Interpretation

Solubility - In water at 20 °C (mg l⁻¹)

1.86E-09

Low

Solubility - In organic solvents at 20 °C (mg l⁻¹)

Insoluble

Methanol

Insoluble

Ethanol

Insoluble

Xylene

Insoluble

Ether

Melting point (°C)

Decomposes before melting

Boiling point (°C)

Decomposes before boiling

Degradation point (°C)

500

Flashpoint (°C)

Not expected to self ignite; Not highly flammable

Octanol-water partition coefficient at pH 7, 20 °C

Not applicable

Log P

Not applicable

Bulk density (g ml⁻¹)

2.87

Dissociation constant pKa) at 25 °C

Vapour pressure at 20 °C (mPa)

Non-volatile

Henry's law constant at 25 °C (Pa m³ mol⁻¹)

Maximum UV-vis absorption L mol⁻¹ cm⁻¹

Surface tension (mN m⁻¹)

Degradation

Property

Value

Source; quality score; and other information

Interpretation

General biodegradability

Soil degradation (days) (aerobic)

DT₅₀ (typical)

365

Very persistent

DT₅₀ (lab at 20 °C)

365

Very persistent

DT₅₀ (field)

365

Very persistent

DT₉₀ (lab at 20 °C)

DT₉₀ (field)

DT₅₀ modelling endpoint

Note

Both iron and phosphate naturally occur in soil. Degradation will be very slow.

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 20 °C and pH 7

Value

Note

Water-sediment DT₅₀ (days)

Water phase only DT₅₀ (days)

Soil adsorption and mobility

Property

Value

Source; quality score; and other information

Interpretation

Linear

K_d

K_oc

Notes and range

Freundlich

K_f

K_foc

¹/_n

Notes and range

pH sensitivity

Fate indices

Property

Value

Source; quality score; and other information

Interpretation

GUS leaching potential index

SCI-GROW groundwater index (μg l⁻¹) for a 1 kg ha⁻¹ or 1 l ha⁻¹ application rate

Value

Cannot be calculated

Note

Potential for particle bound transport index

Potential for loss via drain flow

ECOTOXICOLOGY

Property

Value

Source; quality score; and other information

Interpretation

Bio-concentration factor

BCF (l kg⁻¹)

Low risk

Low potential

CT₅₀ (days)

Mammals - Acute oral LD₅₀ (mg kg⁻¹)

> 5000

Rat

Low

Mammals - Short term dietary NOEL

(mg kg⁻¹)

(ppm diet)

Mammals - Chronic 21d NOAEL (mg kg⁻¹ bw d⁻¹)

Birds - Acute LD₅₀ (mg kg⁻¹)

> 2000

Colinus virginianus as product

Low

Birds - Short term dietary (LC₅₀/LD₅₀)

Birds - Chronic 21d NOEL (mg kg⁻¹ bw d⁻¹)

Fish - Acute 96 hour LC₅₀ (mg l⁻¹)

> 17.0

Oncorhynchus mykiss as product using orthophosphate

Moderate

Fish - Chronic 21 day NOEC (mg l⁻¹)

> 19

Oncorhynchus mykiss as product using orthophosphate

Low

Aquatic invertebrates - Acute 48 hour EC₅₀ (mg l⁻¹)

> 100

Daphnia magna

Low

Aquatic invertebrates - Chronic 21 day NOEC (mg l⁻¹)

> 100

Daphnia magna

Low

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)

> 100

Scenedemus subspicatus

Low

Algae - Chronic 96 hour NOEC, growth (mg l⁻¹)

> 100

Scenedesmus subspicatus

Low

Honeybees (Apis spp.)

Contact acute LD₅₀ (worst case from 24, 48 and 72 hour values - μg bee⁻¹)

> 100

Apis mellifera

Low

Oral acute LD₅₀ (worst case from 24, 48 and 72 hour values - μg bee⁻¹)

> 109.9

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)

> 10

Eisenia foetida

Moderate

Earthworms - Chronic NOEC, reproduction (mg kg⁻¹)

6.7

Eisenia foetida

Moderate

Other soil macro-organisms

Acute LC₅₀ (mg kg⁻¹)

Chronic NOEC (mg kg⁻¹)

16.2

Folsomia candida

Other arthropod (1)

LR₅₀ g ha⁻¹

% Effect

0 / 52.2

Mortality / Parasitisation [Dose: 1 kg ha⁻¹]
Aphidius rhopalosiphi

Other arthropod (2)

LR₅₀ g ha⁻¹

6.6 / 0

Mortality / Fertility [Dose: 1 kg ha⁻¹]
Typhlodromus pyri

% Effect

Soil micro-organisms

Mesocosm study data

NOEAEC mg l⁻¹

HUMAN HEALTH AND PROTECTION

General

Property

Value

Source; quality score; and other information

Interpretation

Threshold of Toxicological Concern (Cramer Class)

High (class III)

Mammals - Acute oral LD₅₀ (mg kg⁻¹)

> 5000

Rat

Low

Mammals - Dermal LD₅₀ (mg kg⁻¹ body weight)

2000

Rat (data for ferric III sulphate)

Mammals - Inhalation LC₅₀ (mg l⁻¹)

Other Mammal toxicity endpoints

ADI - Acceptable Daily Intake (mg kg⁻¹ bw day⁻¹)

0.8

ARfD - Acute Reference Dose (mg kg⁻¹ bw day⁻¹)

None Allocated

AAOEL - Acute Acceptable Operator Exposure Level (mg kg⁻¹ bw day⁻¹)

AOEL - Acceptable Operator Exposure Level - Systemic (mg kg⁻¹ bw day⁻¹)

0.8

Dermal penetration studies (%)

Dangerous Substances Directive 76/464

Exposure Routes

Public

Negligible risk to bystanders, very small risk for local residents

Occupational

Small risk for operators wearing PPC

European MRLs

EU MRL pesticide database

Drinking Water Standards

Drinking Water MAC (μg l⁻¹)

Health issues

Specific human health issues

Carcinogen

Genotoxic

Endocrine disruptor

; ; ; ;

No data found

Reproduction / development effects

Acetyl cholinesterase inhibitor

Neurotoxicant

Respiratory tract irritant

Skin irritant

Skin sensitiser

Eye irritant

Phototoxicant

Mo data

General human health issues

If inhaled, iron is a local irritant to the lung and gastrointestinal tract
Liver, cardiovascular, CNS and pancreas toxicant

Handling issues

Property

Value and interpretation

General

Not explosive or oxidising

CLP classification 2013

Health: H315, H319, H335
Environment: H412

EC Risk Classification

None allocated at this time

EC Safety Classification

WHO Classification

NL (Not listed)

UN Number

Waste disposal & packaging

TRANSLATIONS

Language

Name

English

ferric phosphate

French

orthophosphate de fer

German

Eisenorthophosphat

Danish

Italian

Spanish

ortofosfato de hierro

Greek

Polish

Swedish

jarn(III)fosfat

Hungarian

Dutch

Record last updated:	06/01/2021
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