Magnesium phosphide |
![]() Last updated: 12/01/2021 |
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(Also known as: phosphine; trimagnesium phosphorus(-3) anion ) |
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A phosphine generating compound used against vertebrates and grain store pests | |
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Burrowing rodents and moles; Grain insect pests | |
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Animal feeds; Tobacco; Processed food commodities; Indoor areas and uncropped land; Bulked grain | |
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Current | |
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1979, first registered USA |
UK regulatory status |
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Approved | ||
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31/08/2025 | ||
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None |
EC Regulation 1107/2009 (repealing 91/414) |
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Approved | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Austria/Estonia | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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31/08/2022 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Also used in |
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Australia |
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Chemical structure |
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None | |
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Mg₃P₂ | |
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[Mg+2].[Mg+2].[Mg+2].[P-3].[P-3] | |
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No data | |
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VUBDMGXNLNDGIY-UHFFFAOYSA-N | |
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InChI=1S/3Mg.2P/q3*+2;2*-3 | |
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Yes |
General status |
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Insecticide, Rodenticide | |
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Inorganic compound | |
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880 g kg⁻¹ | |
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EU dossier - None declared | |
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Synthetic | |
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Nerve toxin with respiratory action - reacts with stomach acids to produce phosphine | |
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12057-74-8 | |
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235-023-7 | |
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228 | |
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066504 | |
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magnesium phosphide | |
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134.86 | |
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magnesium phosphide | |
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magnesium phosphide | |
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magnesium phosphide | |
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PAN listed Highly Hazardous Chemical | |
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- | |
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Not applicable | |
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Not applicable | |
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24C | |
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Not applicable | |
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Grey solid |
Formulations |
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Formulated as a phosphine gas generating product |
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No data | A2 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) - rapid hydrolysis2 = Unverified data of unknown source |
No data | ||||||||
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Insoluble | A3 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) Most organic solvents3 = Unverified data of known source |
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Decomposes before melting | A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) 5 = Verified data used for regulatory purposes |
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Decomposes before boiling | A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) 5 = Verified data used for regulatory purposes |
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500 | A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) 5 = Verified data used for regulatory purposes |
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1.47 | A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) 5 = Verified data used for regulatory purposes |
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No data | A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) 5 = Verified data used for regulatory purposes |
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Can not determine due to rapid hydrolysis | |||||||||||
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1.0 X 10-05 | A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) 5 = Verified data used for regulatory purposes |
Low volatility | ||||||||
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No data | A2 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) - rapid hydrolysis2 = Unverified data of unknown source |
No data | ||||||||
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Degradation |
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0.24 | Q3 Q = Miscellaneous internet resources 3 = Unverified data of known source |
Non-persistent | |||||||
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0.22 | A4 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) 4 = Verified data |
Non-persistent | ||||||||
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0.69 | A4 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) 4 = Verified data |
Non-persistent | ||||||||
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EU dossier lab studies DT₅₀ range 0.22-0.24 days, DT₉₀ estimated range 0.66-0.72 days | ||||||||||
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Very rapid | A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) 5 = Verified data used for regulatory purposes |
Very rapid | |||||||
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Soil adsorption and mobility |
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Fate indices |
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Low | Calculated | - | ||||||||||||||||||||||||||
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Calculated | - |
Key metabolites |
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Soil | 1.00 | Major fraction, Relevant |
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10.4 | A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) Rat5 = Verified data used for regulatory purposes |
High | ||||||||
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49 | A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) Coturnix japonica5 = Verified data used for regulatory purposes |
High | ||||||||
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0.0093 | A3 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) Oncorhynchus mykiss calculated from phosphine3 = Unverified data of known source |
High | ||||||||
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> 663.5 | A3 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) for aluminium phosphide3 = Unverified data of known source |
Moderate | ||||||||
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Nitrogen mineralisation: No significant adverse effect Carbon mineralisation: No significant adverse effect |
A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) 5 = Verified data used for regulatory purposes Dose: 56% AIP/kg soil 28 days |
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General |
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High (class III) | - | - | ||||||||
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10.4 | A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) Rat5 = Verified data used for regulatory purposes |
High | ||||||||
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460 | A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) Rat5 = Verified data used for regulatory purposes |
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> 11 | A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) Rat5 = Verified data used for regulatory purposes |
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0.022 | A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) Rat SF=1005 = Verified data used for regulatory purposes |
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0.038 | A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) Rat SF=1005 = Verified data used for regulatory purposes |
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0.022 | A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) Rat SF=1005 = Verified data used for regulatory purposes |
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Acceptable risk for bystanders | |||||||||
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Acceptable risk for workers Acceptable risk for operators for the control of rodents, PPE required for insect control |
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Health issues |
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Moderately toxic |
Handling issues |
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Reacts with water to produce toxic phosphine (hydrogen phosphide, PH3 ) No explosive or oxidising; IMDG Transport Code is usually 4.3 |
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Health: H300, H311 Handling: H260 Environment: H400 |
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T+ - Very toxic: R28 H - Handling risks: R15/29 N - Dangerous for the environment: R50 |
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S1/2, S22, S28, S36/37, S43, S45, S61 | |||
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NL (Not listed) | |||
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Usually 2011 | |||
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Packaging Group I (great danger) |
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magnesium phosphide | ||
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diphosphure de trimagnésium | ||
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Trimagnesiumdiphosphid | ||
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difosfuro de trimagnesio | ||
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fosforek magnezu | ||
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Record last updated: | 12/01/2021 |
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 |