Silica |
![]() Last updated: 11/03/2021 |
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(Also known as: silox; constituent of diatomaceous earth; amorphous silica; crystalline silica) |
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Inert mineral used as a carrier in some pesticide products and sometimes used as an insecticide | |
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Ticks; Mites; bedbugs; Cockroaches | |
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Non-agricultural situations | |
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Current | |
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UK regulatory status |
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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 applicable - not a ppp. May be authorised at national level under different legislation | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Not applicable | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Not applicable | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Also used in |
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Chemical structure |
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SiO₂ | |
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O=[Si]=O | |
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No data | |
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VYPSYNLAJGMNEJ-UHFFFAOYSA-N | |
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InChI=1S/O2Si/c1-3-2 | |
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Yes |
General status |
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Insecticide, Acaricide, Other substance | |
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Carrier | |
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Metal oxide | |
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Synthetic | |
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Inert but acts as an insecticide via its abrasive and desiccant physical properties | |
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7631-86-9 | |
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231-545-4 | |
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None allocated | |
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072605 | |
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24261 | |
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60.08 | |
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dioxosilane | |
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silicon dioxide | |
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Not applicable | |
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Not applicable | |
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Not applicable | |
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Not applicable | |
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White powder | |
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Formulations |
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A free flowing additive to powders, granules etc. |
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120 | Q3 Q = Miscellaneous internet resources 3 = Unverified data of known source |
Moderate | ||||||||
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1610 | 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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2.2 | Q3 Q = Miscellaneous internet resources 3 = Unverified data of known source |
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1350000 | 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 |
Highly volatile | ||||||||
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Degradation |
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730 | Q3 Q = Miscellaneous internet resources 3 = Unverified data of known source |
Very persistent | |||||||
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Literature states that the substance is stable in soil | ||||||||||
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Stable | Q3 Q = Miscellaneous internet resources 3 = Unverified data of known source |
Stable | |||||||
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Stable | Q3 Q = Miscellaneous internet resources 3 = Unverified data of known source |
Stable | |||||||
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Stable | Q3 Q = Miscellaneous internet resources 3 = Unverified data of known source |
Stable | ||||||||
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Stable | Q3 Q = Miscellaneous internet resources 3 = Unverified data of known source |
Stable |
Soil adsorption and mobility |
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Fate indices |
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5110 | R3 R = Peer reviewed scientific publications Rat3 = Unverified data of known source |
Low | ||||||||
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> 10000 | Q3 Q = Miscellaneous internet resources Danio rerio3 = Unverified data of known source |
Low | ||||||||
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> 1000 | Q3 Q = Miscellaneous internet resources Daphnia magna3 = Unverified data of known source |
Low | ||||||||
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440 | Q3 Q = Miscellaneous internet resources Pseudokirchneriella subcapitata3 = Unverified data of known source |
Low | ||||||||
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General |
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High (class III) | - | - | ||||||||
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5110 | R3 R = Peer reviewed scientific publications Rat3 = Unverified data of known source |
Low | ||||||||
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5000 | R3 R = Peer reviewed scientific publications Rabbit3 = Unverified data of known source |
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2.2 | 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 ) Rat4 = Verified data |
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None allocated | 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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None allocated | 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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0.3 | 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 ) as mg m³ (inhalation)5 = Verified data used for regulatory purposes |
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Public may become exposed via their diets but substance is relatively benign by this route | |||||||||
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Serious risk to operators and other workers - PPE/PPC required | ||||||||||
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Health issues |
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Dust can cause silicosis and bronchitis May cause sensitization via inhalation |
Handling issues |
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Prevent generation of dust | |||
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Carcinogen category 2: R49 Xn - Harmful: R43, R42 |
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S22, S36, S37, S45, S53 | |||
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NL (Not listed) | |||
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silica | ||
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silice cristalline | ||
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kristallenes Silikon | ||
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siliciumdioxid | ||
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silicone cristallino | ||
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silicona cristalina | ||
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krystaliczna krzemionka | ||
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Kiseldioxid | ||
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kristallijn kiezelzuur |
Record last updated: | 11/03/2021 |
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 |