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Is Mineral acids, chlorides, sulphates, hydroxides and oxides (E507–E530 selected) Halal?

Yes — this one is Halal.

Halal

High confidence About this ruling

About this ruling

Evidence confidence
High means this page cites a primary regulator listing and a named Halal certifier listing, retrieved 16 August 2026. That describes the quality of the sources on this page—not a Halal certificate for the pack or outlet in your hand.
How we score High, Medium, and Low

Hydrochloric and sulphuric acids, chloride and sulphate salts, and hydroxide/oxide processing aids are inorganic.

Evidence at a glance

Named sources used for this page. Open the full Sources block for notes and citation numbers.

Source Type Retrieved
21 CFR § 184.1057 hydrochloric acid U.S. eCFR Regulatory / labelling
Regulation (EC) No 1333/2008 on food additives European Union Regulatory / labelling
European Commission — Food additives European Commission Regulatory / labelling
Codex GSFA online FAO / WHO Codex Regulatory / labelling
SANHA — E-numbers SANHA Certifier / jurisdiction
U.S. FDA — Food additives U.S. Food and Drug Administration Regulatory / labelling

Full Sources

Additive identity

E-number
E507, E508, E509, E511, E512, E513, E514, E515, E516, E517, E524, E525, E526, E527, E528, E529, E530
Codex INS
INS 507, INS 508, INS 509, INS 511, INS 512, INS 513, INS 514, INS 515, INS 516, INS 517, INS 524, INS 525, INS 526, INS 527, INS 528, INS 529, INS 530
Function
acidity regulator
Family
mineral acids
EU Union list
authorised
Names
Hydrochloric acid; Potassium chloride; Calcium chloride; Magnesium chloride; Stannous chloride; Sulphuric acid; Sodium sulphates; Potassium sulphates; Calcium sulphate; Ammonium sulphate; Sodium hydroxide; Potassium hydroxide; Calcium hydroxide; Ammonium hydroxide; Magnesium hydroxide; Calcium oxide; Magnesium oxide

Possible source pathways

The finished molecule can be identical across feedstocks. The Halal ruling follows the pathway, not the code alone.

  • mineral · Typical Halal Mineral or inorganic identity. Not meat, wine, or insect colour.

E-number database

White mineral powder standing in for calcium sulphate and chloride

Why this ruling

Hydrochloric acid, chloride and sulphate salts, and hydroxide/oxide aids (E507–E530 selected) are Halal mineral additives.[2][4]

Tofu set with calcium sulphate is the everyday example.

Where you'll find it

  • Tofu coagulants
  • Cheese firming and brewing salts

How to verify

1) Match E507–E517, E524–E530, calcium chloride, or gypsum. 2) Halal. 3) Read tofu coagulants vs animal rennet on cheese.

  • Mineral salts → Halal.
  • Tofu gypsum is Halal.
  • Cheese still needs rennet.

Conditions for Halal

  • These mineral codes → Halal
  • Cheese still needs rennet
  • Tofu gypsum / chloride → Halal coagulant

Scholarly differences

These are not 'chemicals therefore mashbooh'. Inorganic identity is Halal unless something else on the pack fails.

Frequently asked questions

Is calcium sulphate in tofu Halal?
Yes. E516 is gypsum, a mineral coagulant.
Is sodium hydroxide Halal?
Yes. E524 is a mineral alkali used in cocoa and pretzels.

Sources

Named Islamic, certifier, manufacturer, and regulatory sources used on this page. Inline markers like [1] jump here. Retrieval dates show when we last checked the live URL. Editorial methodology.

Certifier / jurisdiction

  1. SANHA — E-numbers

    SANHA

    Certifier: SANHA

    Certifier E-number literacy; not a product certificate.

    Retrieved:

Regulatory / labelling

  1. 21 CFR § 184.1057 hydrochloric acid

    U.S. eCFR

    U.S. identity / GRAS or colour-additive listing—not a Halal ruling.

    Retrieved:

  2. Regulation (EC) No 1333/2008 on food additives

    European Union

    Union-list identity—not a Halal certificate.

    Retrieved:

  3. European Commission — Food additives

    European Commission

    EU additive literacy hub.

    Retrieved:

  4. Codex GSFA online

    FAO / WHO Codex

    Codex INS / GSFA identity.

    Retrieved:

  5. U.S. FDA — Food additives

    U.S. Food and Drug Administration

    US identity / labelling context—not a Halal ruling.

    Retrieved:

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Applies to
General ruling; confirm local labels, slaughter, and certification when relevant
Last reviewed