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What counts as Silicon dioxide – silicates (E…?

2 markets define Silicon dioxide – silicates (E 551–559), and they don't all agree. Read each definition below. You tell us if your product contains it; we never guess from its name.

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Group

Definitions

Market
Definition
Listed members
Source
Additives named by the Part E cell "E 551-559" (Silicon dioxide – silicates); members are the Part B additives in that range
Silicon dioxide, Calcium silicate, Magnesium silicate, Talc, Sodium aluminium silicate, Potassium aluminium silicate, Calcium aluminium silicate (2), Bentonite (3), Aluminium silicate (Kaolin) (2)

From the consolidated text: E 551-559 · Silicon dioxide – silicates · 10 000 · (1) (57) · only foods in dried powdered form (i.e. foods dried during the production process, and mixtures thereof), excluding foods listed in table 1 of Part A of this Annex Period of application: until 31 January 2014

Annex II Part C (GB): E 551 – 559: Silicon dioxide – silicates
Silicon dioxide, Calcium silicate, Magnesium silicate, Talc, Sodium aluminium silicate, Potassium aluminium silicate, Calcium aluminium silicate (2), Aluminium silicate (Kaolin) (2)
“E 551 – 559: Silicon dioxide – silicates”
Annex II, line 781 (excerpt) · fetched 2026-10-10The National Archives (legislation.gov.uk): Annex II, line 781(opens in a new tab)
  • Definition
    Additives named by the Part E cell "E 551-559" (Silicon dioxide – silicates); members are the Part B additives in that range
    Listed members
    Silicon dioxide, Calcium silicate, Magnesium silicate, Talc, Sodium aluminium silicate, Potassium aluminium silicate, Calcium aluminium silicate (2), Bentonite (3), Aluminium silicate (Kaolin) (2)
    Source

    From the consolidated text: E 551-559 · Silicon dioxide – silicates · 10 000 · (1) (57) · only foods in dried powdered form (i.e. foods dried during the production process, and mixtures thereof), excluding foods listed in table 1 of Part A of this Annex Period of application: until 31 January 2014

  • Definition
    Annex II Part C (GB): E 551 – 559: Silicon dioxide – silicates
    Listed members
    Silicon dioxide, Calcium silicate, Magnesium silicate, Talc, Sodium aluminium silicate, Potassium aluminium silicate, Calcium aluminium silicate (2), Aluminium silicate (Kaolin) (2)
    Source
    “E 551 – 559: Silicon dioxide – silicates”
    Annex II, line 781 (excerpt) · fetched 2026-10-10The National Archives (legislation.gov.uk): Annex II, line 781(opens in a new tab)

Rules

Rules that use these definitions

38 rules.

Requirement
Applies when
Effective
Source
ConformityGB
Silicon dioxide – silicates (E 551–559) as defined in Great Britain (England, Scotland, Wales)

Must meet the conditions of E 551-559 Silicon dioxide – silicates is authorised in food category 05.2 Other confectionery including breath refreshening microsweets at quantum satis (no maximum level).

Official text, current to 28 Jun 2024. legislation.gov.uk point-in-time version 2024-06-28 of Annex II, which the FSA register cites as the terms of authorisation (Annex II was omitted from the revised text from 2025-04-01).

  • EU food category: Other confectionery including breath refreshening microsweets [05.2]

Depends on: eu food category code

Repealed

Applies to products placed on the market on or after 20 Jan 2010

Applies in GB from 20 January 2010 (retained Art. 35); the Annex text is the version in force on 2024-06-28, the last before Annex II was omitted from the revised legislation on 1 April 2025 (S.I. 2025/361); the FSA register keeps these terms of authorisation. Amendment dates of single rows not tracked.

From the official list: E 551-559 · Silicon dioxide – silicates · quantum satis · (1) · surface treatment only Period of application: until 31 January 2014

ConformityGB
Silicon dioxide – silicates (E 551–559) as defined in Great Britain (England, Scotland, Wales)

Must meet the conditions of E 551-559 Silicon dioxide – silicates is authorised in food category 05.4 Decorations, coatings and fillings, except fruit based fillings covered by category 4.2.4 at quantum satis (no maximum level).

Official text, current to 28 Jun 2024. legislation.gov.uk point-in-time version 2024-06-28 of Annex II, which the FSA register cites as the terms of authorisation (Annex II was omitted from the revised text from 2025-04-01).

  • EU food category: Decorations, coatings and fillings, except fruit based fillings covered by category 4.2.4 [05.4]

Depends on: eu food category code

Repealed

Applies to products placed on the market on or after 20 Jan 2010

Applies in GB from 20 January 2010 (retained Art. 35); the Annex text is the version in force on 2024-06-28, the last before Annex II was omitted from the revised legislation on 1 April 2025 (S.I. 2025/361); the FSA register keeps these terms of authorisation. Amendment dates of single rows not tracked.

From the official list: E 551-559 · Silicon dioxide – silicates · quantum satis · surface treatment only Period of application: until 31 January 2014

ConformityGB
Silicon dioxide – silicates (E 551–559) as defined in Great Britain (England, Scotland, Wales)

Must meet the conditions of E 551-559 Silicon dioxide – silicates is authorised in food category 11.1 Sugars and syrups as defined by Directive 2001/111/EC at quantum satis (no maximum level).

Official text, current to 28 Jun 2024. legislation.gov.uk point-in-time version 2024-06-28 of Annex II, which the FSA register cites as the terms of authorisation (Annex II was omitted from the revised text from 2025-04-01).

  • EU food category: Sugars and syrups as defined by Directive 2001/111/EC [11.1]

Depends on: eu food category code

Repealed

Applies to products placed on the market on or after 20 Jan 2010

Applies in GB from 20 January 2010 (retained Art. 35); the Annex text is the version in force on 2024-06-28, the last before Annex II was omitted from the revised legislation on 1 April 2025 (S.I. 2025/361); the FSA register keeps these terms of authorisation. Amendment dates of single rows not tracked.

From the official list: E 551-559 · Silicon dioxide – silicates · quantum satis · (1) · only foods in tablet and coated tablet form Period of application: until 31 January 2014

ConformityGB
Silicon dioxide – silicates (E 551–559) as defined in Great Britain (England, Scotland, Wales)

Must meet the conditions of E 551-559 Silicon dioxide – silicates is authorised in food category 11.4.3 Table-top sweeteners in tablets at quantum satis (no maximum level).

Official text, current to 28 Jun 2024. legislation.gov.uk point-in-time version 2024-06-28 of Annex II, which the FSA register cites as the terms of authorisation (Annex II was omitted from the revised text from 2025-04-01).

  • EU food category: Table-top sweeteners in tablets [11.4.3]

Depends on: eu food category code

Repealed

Applies to products placed on the market on or after 20 Jan 2010

Applies in GB from 20 January 2010 (retained Art. 35); the Annex text is the version in force on 2024-06-28, the last before Annex II was omitted from the revised legislation on 1 April 2025 (S.I. 2025/361); the FSA register keeps these terms of authorisation. Amendment dates of single rows not tracked.

From the official list: E 551-559 · Silicon dioxide – silicates · quantum satis · Period of application: until 31 January 2014

ConformityGB
Silicon dioxide – silicates (E 551–559) as defined in Great Britain (England, Scotland, Wales)

Must meet the conditions of E 551-559 Silicon dioxide — silicates is authorised in food category 17.1 Food supplements supplied in a solid form, excluding food supplements for infants and young children at quantum satis (no maximum level).

Official text, current to 28 Jun 2024. legislation.gov.uk point-in-time version 2024-06-28 of Annex II, which the FSA register cites as the terms of authorisation (Annex II was omitted from the revised text from 2025-04-01).

  • EU food category: Food supplements supplied in a solid form, excluding food supplements for infants and young children [17.1]

Depends on: eu food category code

Repealed

Applies to products placed on the market on or after 20 Jan 2010

Applies in GB from 20 January 2010 (retained Art. 35); the Annex text is the version in force on 2024-06-28, the last before Annex II was omitted from the revised legislation on 1 April 2025 (S.I. 2025/361); the FSA register keeps these terms of authorisation. Amendment dates of single rows not tracked.

From the official list: E 551-559 · Silicon dioxide — silicates · quantum satis · Period of application: until 31 January 2014

  • ConformityGB
    Silicon dioxide – silicates (E 551–559) as defined in Great Britain (England, Scotland, Wales)

    Must meet the conditions of E 551-559 Silicon dioxide – silicates is authorised in food category 05.2 Other confectionery including breath refreshening microsweets at quantum satis (no maximum level).

    Official text, current to 28 Jun 2024. legislation.gov.uk point-in-time version 2024-06-28 of Annex II, which the FSA register cites as the terms of authorisation (Annex II was omitted from the revised text from 2025-04-01).

    Applies when
    • EU food category: Other confectionery including breath refreshening microsweets [05.2]

    Depends on: eu food category code

    Effective
    Repealed

    Applies to products placed on the market on or after 20 Jan 2010

    Applies in GB from 20 January 2010 (retained Art. 35); the Annex text is the version in force on 2024-06-28, the last before Annex II was omitted from the revised legislation on 1 April 2025 (S.I. 2025/361); the FSA register keeps these terms of authorisation. Amendment dates of single rows not tracked.

    Source

    From the official list: E 551-559 · Silicon dioxide – silicates · quantum satis · (1) · surface treatment only Period of application: until 31 January 2014

  • ConformityGB
    Silicon dioxide – silicates (E 551–559) as defined in Great Britain (England, Scotland, Wales)

    Must meet the conditions of E 551-559 Silicon dioxide – silicates is authorised in food category 05.4 Decorations, coatings and fillings, except fruit based fillings covered by category 4.2.4 at quantum satis (no maximum level).

    Official text, current to 28 Jun 2024. legislation.gov.uk point-in-time version 2024-06-28 of Annex II, which the FSA register cites as the terms of authorisation (Annex II was omitted from the revised text from 2025-04-01).

    Applies when
    • EU food category: Decorations, coatings and fillings, except fruit based fillings covered by category 4.2.4 [05.4]

    Depends on: eu food category code

    Effective
    Repealed

    Applies to products placed on the market on or after 20 Jan 2010

    Applies in GB from 20 January 2010 (retained Art. 35); the Annex text is the version in force on 2024-06-28, the last before Annex II was omitted from the revised legislation on 1 April 2025 (S.I. 2025/361); the FSA register keeps these terms of authorisation. Amendment dates of single rows not tracked.

    Source

    From the official list: E 551-559 · Silicon dioxide – silicates · quantum satis · surface treatment only Period of application: until 31 January 2014

  • ConformityGB
    Silicon dioxide – silicates (E 551–559) as defined in Great Britain (England, Scotland, Wales)

    Must meet the conditions of E 551-559 Silicon dioxide – silicates is authorised in food category 11.1 Sugars and syrups as defined by Directive 2001/111/EC at quantum satis (no maximum level).

    Official text, current to 28 Jun 2024. legislation.gov.uk point-in-time version 2024-06-28 of Annex II, which the FSA register cites as the terms of authorisation (Annex II was omitted from the revised text from 2025-04-01).

    Applies when
    • EU food category: Sugars and syrups as defined by Directive 2001/111/EC [11.1]

    Depends on: eu food category code

    Effective
    Repealed

    Applies to products placed on the market on or after 20 Jan 2010

    Applies in GB from 20 January 2010 (retained Art. 35); the Annex text is the version in force on 2024-06-28, the last before Annex II was omitted from the revised legislation on 1 April 2025 (S.I. 2025/361); the FSA register keeps these terms of authorisation. Amendment dates of single rows not tracked.

    Source

    From the official list: E 551-559 · Silicon dioxide – silicates · quantum satis · (1) · only foods in tablet and coated tablet form Period of application: until 31 January 2014

  • ConformityGB
    Silicon dioxide – silicates (E 551–559) as defined in Great Britain (England, Scotland, Wales)

    Must meet the conditions of E 551-559 Silicon dioxide – silicates is authorised in food category 11.4.3 Table-top sweeteners in tablets at quantum satis (no maximum level).

    Official text, current to 28 Jun 2024. legislation.gov.uk point-in-time version 2024-06-28 of Annex II, which the FSA register cites as the terms of authorisation (Annex II was omitted from the revised text from 2025-04-01).

    Applies when
    • EU food category: Table-top sweeteners in tablets [11.4.3]

    Depends on: eu food category code

    Effective
    Repealed

    Applies to products placed on the market on or after 20 Jan 2010

    Applies in GB from 20 January 2010 (retained Art. 35); the Annex text is the version in force on 2024-06-28, the last before Annex II was omitted from the revised legislation on 1 April 2025 (S.I. 2025/361); the FSA register keeps these terms of authorisation. Amendment dates of single rows not tracked.

    Source

    From the official list: E 551-559 · Silicon dioxide – silicates · quantum satis · Period of application: until 31 January 2014

  • ConformityGB
    Silicon dioxide – silicates (E 551–559) as defined in Great Britain (England, Scotland, Wales)

    Must meet the conditions of E 551-559 Silicon dioxide — silicates is authorised in food category 17.1 Food supplements supplied in a solid form, excluding food supplements for infants and young children at quantum satis (no maximum level).

    Official text, current to 28 Jun 2024. legislation.gov.uk point-in-time version 2024-06-28 of Annex II, which the FSA register cites as the terms of authorisation (Annex II was omitted from the revised text from 2025-04-01).

    Applies when
    • EU food category: Food supplements supplied in a solid form, excluding food supplements for infants and young children [17.1]

    Depends on: eu food category code

    Effective
    Repealed

    Applies to products placed on the market on or after 20 Jan 2010

    Applies in GB from 20 January 2010 (retained Art. 35); the Annex text is the version in force on 2024-06-28, the last before Annex II was omitted from the revised legislation on 1 April 2025 (S.I. 2025/361); the FSA register keeps these terms of authorisation. Amendment dates of single rows not tracked.

    Source

    From the official list: E 551-559 · Silicon dioxide — silicates · quantum satis · Period of application: until 31 January 2014

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