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magnesium phosphide
** phosphine ** trimagnesium phosphorus(-3) anion ** Translations

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

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

Description: A phosphine generating compound used against vertebrates and grain store pests

Example pests controlled: Burrowing rodents and moles; Grain insect pests

Example applications: Animal feeds; Tobacco; Processed food commodities; Indoor areas and uncropped land; Bulked grain

Efficacy & activity: -

Availability status: Current

Introduction & key dates: 1979, first registered USA

EC Regulation 1107/2009 (repealing 91/414):
Status Approved
Dossier rapporteur/co-rapporteur Austria/Estonia
Date inclusion expires 31/08/2022
EU Candidate for substitution (CfS) No
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

Also used in: Australia

Chemical structure: Click here for further information on the general chemical status information used on this site
Isomerism None
Chemical formula Mg3P2
Canonical SMILES [Mg+2].[Mg+2].[Mg+2].[P-3].[P-3]
Isomeric SMILES No data
International Chemical Identifier key (InChIKey) VUBDMGXNLNDGIY-UHFFFAOYSA-N
International Chemical Identifier (InChI) InChI=1S/3Mg.2P/q3*+2;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 Insecticide, Rodenticide
Substance group Inorganic compound
Minimum active substance purity 880 g/kg
Known relevant impurities EU dossier - None declared
Substance origin Synthetic
Mode of action Nerve toxin with respiratory action - reacts with stomach acids to produce phosphine
CAS RN 12057-74-8
EC number 235-023-7
CIPAC number 228
US EPA chemical code 066504
PubChem CID magnesium phosphide
Molecular mass (g mol-1) 134.86
PIN (Preferred Identification Name) magnesium phosphide
IUPAC name magnesium phosphide
CAS name magnesium phosphide
Other status information PAN listed Highly Hazardous Chemical
Relevant Environmental Water Quality Standards -
Herbicide Resistance Classification (HRAC) Not applicable
Herbicide Resistance Classification (WSSA) Not applicable
Insecticide Resistance Classification (IRAC) 24C
Fungicide Resistance Classification (FRAC) Not applicable
Examples of recorded resistance -
Physical state Grey 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
  • Detia Degesch GmbH
  • Rentokil
Example products using this active
  • Degesch Plates
UK LERAP status None
Formulation and application details Formulated as a phosphine gas generating product.


ENVIRONMENTAL FATE

for magnesium phosphide

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) No data A2 - - rapid hydrolysis -
Solubility - In organic solvents at 20oC (mg l-1) Insoluble A3 - Most organic solvents -
Melting point (oC) Decomposes before melting A5 -
Boiling point (oC) Decomposes before boiling A5 -
Degradation point (oC) 500 A5 -
Flashpoint (oC) - - -
Octanol-water partition coefficient at pH 7, 20oC P - - -
Log P - - -
Bulk density (g ml-1)/Specific gravity 1.47 A5 -
Dissociation constant (pKa) at 25oC No data A5 -
Note: Can not determine due to rapid hydrolysis
Vapour pressure at 20oC (mPa) 1.0 X 10-05 A5 Low volatility
Henry's law constant at 25oC (Pa m3 mol-1) No data A2 - - rapid hydrolysis -
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 - Calculated Low
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) 0.24 Click here to see a warning relating to modelling and this active substance Q3 Non-persistent
DT50 (lab at 20oC) 0.22 A4 Non-persistent
DT50 (field) - - -
DT90 (lab at 20oC) 0.69 A4 -
DT90 (field) - - -
DT50 modelling endpoint - - -
Note EU dossier lab studies DT50 range 0.22-0.24 days, DT90 estimated range 0.66-0.72 days
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 Very rapid A5 -
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 -

Key metabolites:
Metabolite Formation medium Estimated maximum occurrence fraction 1107/2009 relevancy Click here for further information on 1107/2009 relevancy
phosphine This metabolite may cause environmental pollution, click here for further information Soil   1.00   Major fraction, Relevant


ECOTOXICOLOGY

for magnesium phosphide

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) 10.4 A5 Rat High
Mammals - Short term dietary NOEL (mg kg-1) - - -
(ppm diet) - -
Birds - Acute LD50 (mg kg-1) 49 A5 Coturnix japonica High
Birds - Short term dietary (LC50/LD50) - - -
Fish - Acute 96 hour LC50 (mg l-1) 0.0093 A3 Oncorhynchus mykiss calculated from phosphine High
Fish - Chronic 21 day NOEC (mg l-1) - - -
Aquatic invertebrates - Acute 48 hour EC50 (mg l-1) - - -
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) - - -
Algae - Chronic 96 hour NOEC, growth (mg l-1) - - -
Honeybees Contact acute 48 hour LD50 (μg bee-1) - - -
Oral acute 48 hour LD50 (μg bee-1) - - -
Unknown mode acute 48 hour LD50 (μg bee-1) - - -
Earthworms - Acute 14 day LC50 (mg kg-1) > 663.5 A3 for aluminium phosphide Moderate
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 Nitrogen mineralisation: No significant adverse effect
Carbon mineralisation: No significant adverse effect
A5
Dose: 56% AIP/kg soil, 28 days
-
Mesocosm study data NOEAEC mg l-1 - - -
NOEAEC mg l-1 - - -


HUMAN HEALTH AND PROTECTION

for magnesium phosphide

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) 10.4 A5 Rat High
Mammals - Dermal LD50 (mg kg-1 body weight) 460 A5 Rat -
Mammals - Inhalation LC50 (mg l-1) > 11 A5 Rat -
Other Mammal toxicity endpoints - -
ADI - Acceptable Daily Intake (mg kg-1bw day-1) 0.022 A5 Rat, SF=100 -
ARfD - Acute Reference Dose (mg kg-1bw day-1) 0.038 A5 Rat, SF=100 -
AAOEL - Acute Acceptable Operator Exposure Level (mg kg-1 bw day-1) - - -
AOEL - Acceptable Operator Exposure Level - Systemic (mg kg-1bw day-1) 0.022 A5 Rat, SF=100 -
Dermal penetration studies (%) - - -
Dangerous Substances Directive 76/464 - - -
Exposure Limits - - -
Exposure Routes Public Acceptable risk for bystanders
Occupational Acceptable risk for workers
Acceptable risk for operators for the control of rodents, PPE required for insect control
European MRLs Click here for the EU MRL pesticide database
Drinking Water Standards - - -
Drinking Water MAC (μg l-1) - - -

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 Moderately toxic

: 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 Reacts with water to produce toxic phosphine (hydrogen phosphide, PH3 )
No explosive or oxidising; IMDG Transport Code is usually 4.3
CLP classification 2013 Health: H300, H311
Handling: H260
Environment: H400
EC Risk Classification Click here to view information omn the EU risk phrases T+ - Very toxic: R28
H - Handling risks: R15/29
N - Dangerous for the environment: R50
EC Safety Classification Click here to view information omn the EU safety phrases S1/2, S22, S28, S36/37, S43, S45, S61
WHO Classification NL - Not listed
US EPA Classification (formulation) - -
UN Number Usually 2011
Waste disposal & packaging Click here for a description of UN packaging marks Packaging Group I (great danger)


TRANSLATIONS

for magnesium phosphide

Language Name
English magnesium phosphide
French diphosphure de trimagnésium
German Trimagnesiumdiphosphid
Danish -
Italian -
Spanish difosfuro de trimagnesio
Greek -
Slovenian -
Polish fosforek magnezu
Swedish -
Hungarian -
Dutch -

Record last updated: Friday 14 September 2018
Contact: aeru@herts.ac.uk