Food Safety Substance
Sodium hydroxideE524
Sodium hydroxide (E524) is a food additive with PUBLISHED in the EU, GRAS in the US, and data from 9 regulatory sources.
CAS 1310-73-2
E524
Indexable evidence set
FDA
GRAS
ADI / TDI
ADI NOT LIMITED
Codex
8 row(s)
SOURCE
D1 identity resolution
e number aliases | Food Additives | dsstox identifiers | 9 matched regulatory source group(s)
Substance Identity
Resolved identifiers used to render this food-safety record.
Substance name
Sodium hydroxide
CAS
1310-73-2
E-number
E524
DTXSID
DTXSID0029634
PubChem CID
14798
Evidence tier
Indexable evidence set (16)
SOURCE
EU Commission
FDA | Health Canada | Codex Alimentarius
Multi-Jurisdiction Comparison
Side-by-side status rows for the same resolved substance across public food regulators.
| Jurisdiction | Authority | Status | Evidence |
|---|---|---|---|
| European Union | EU Commission | PUBLISHED | EU additive listing; Annex II entry |
| Canada | Health Canada | Listed | To facilitate the removal of extraneous matter and to reduce moisture loss during cooking |
| Codex | Codex Alimentarius | Listed | Acidity regulator |
SOURCE
EU Commission
EU Food Additives | EU Food Additives Database
EU Food Additive Status
EU Commission food-additive listing rows from eu_food_additives.
| Jurisdiction | E-number | Status | Type | Name | Note |
|---|---|---|---|---|---|
| European Union | E524 | PUBLISHED | substanceFAD | Sodium hydroxide | - |
SOURCE
EU Commission
EU Annex II Authorised | EU Food Additives Database
EU Annex II Authorised Uses
Authorised additive rows and use conditions from EU Annex II tables.
| Jurisdiction | E-number | Name | INS | Policy item | Note |
|---|---|---|---|---|---|
| European Union | E524 | Sodium hydroxide | - | POL-FAD-IMPORT-3220 | - |
Conditions and restrictions
| Jurisdiction | Food category | Restriction | Comment | Source |
|---|---|---|---|---|
| European Union | 4.2.5 jam jellies and marmalades and similar products | quantum satis | - | EU Annex II Union List |
| European Union | 4.2.5.2 Jam, jellies and marmalades and sweetened chestnut puree as defined by Directive 2001/113/EC | quantum satis | - | EU Annex II Union List |
| European Union | 4.2.5.3 other similar fruit or vegetable spreads | quantum satis | - | EU Annex II Union List |
| European Union | 13.1.3 Processed cereal-based foods and baby foods as defined by Regulation (EU) No 609/2013 | quantum satis | only processed cereal based foods and baby foods, only for pH adjustment | EU Annex II Union List |
| European Union | 13.1.5.1 Foods for special medical purposes as defined by Regulation (EU) No 609/2013, intended for infants | quantum satis | only for pH adjustment | EU Annex II Union List |
| European Union | 4.2.5 jam jellies and marmalades and similar products | quantum satis | - | EU Food Additives Database |
| European Union | 4.2.5.3 other similar fruit or vegetable spreads | quantum satis | - | EU Food Additives Database |
| European Union | 13.1.3 Processed cereal-based foods and baby foods as defined by Regulation (EU) No 609/2013 | quantum satis | only processed cereal based foods and baby foods, only for pH adjustment | EU Food Additives Database |
| European Union | 13.1.5.1 Foods for special medical purposes as defined by Regulation (EU) No 609/2013, intended for infants | quantum satis | only for pH adjustment | EU Food Additives Database |
| European Union | 1.9 Edible caseinates | quantum satis | - | EU Food Additives Database |
| European Union | 1.10 Milk-based drinks and similar products intended for young children* | quantum satis | only for pH adjustment | EU Food Additives Database |
| European Union | 4.2.5.2 Jam, jellies and marmalades and sweetened chestnut puree as defined by Directive 2001/113/EC | quantum satis | - | EU Food Additives Database |
SOURCE
Codex Alimentarius
Codex GSFA
Codex GSFA Status
Codex Alimentarius GSFA permissions and maximum-use rows.
| Jurisdiction | INS / E-number | Function | Food category | Max level | Notes |
|---|---|---|---|---|---|
| Codex | 524 | Acidity regulator | 01.1.2 Other fluid milk (plain) | GMP | Excluding lactose reduced milks. |
| Codex | 524 | Acidity regulator | 01.2.1.2 Fermented milks (plain), heat-treated after fermentation | GMP | - |
| Codex | 524 | Acidity regulator | 01.8.2 Dried whey and whey products, excluding whey cheeses | GMP | Excluding products conforming to the Standard for Dairy Permeate Powders (CXS 331-2017). |
| Codex | 524 | Acidity regulator | 02.2.1 Butter | GMP | - |
| Codex | 524 | Acidity regulator | 13.1.1 Infant formulae | 2,000 mg/kg | As consumed.; Within the limits for sodium, calcium, and potassium specified in the Standard for Infant Formula and Formulas for Special Medical Purposes Intended for Infants (CXS... |
| Codex | 524 | Acidity regulator | 13.1.2 Follow-up formulae | GMP | As consumed.; For use in follow-up formula for older infants: within the limit for sodium specified in the standard for Follow-up Formula for older infants and product for young... |
| Codex | 524 | Acidity regulator | 13.1.3 Formulae for special medical purposes for infants | 2,000 mg/kg | As consumed.; Within the limits for sodium, calcium, and potassium specified in the Standard for Infant Formula and Formulas for Special Medical Purposes Intended for Infants (CXS... |
| Codex | 524 | Acidity regulator | 13.2 Complementary foods for infants and young children | GMP | Excluding products conforming to the Standard for Canned Baby Foods (CODEX STAN 73- 1981).; Within the limit for sodium listed in the Codex Standard for Processed Cereal-based... |
SOURCE
Health Canada
Health Canada Status
Health Canada food-additive permissions by functional class and food scope.
| Jurisdiction | Class | Permitted foods | Maximum level | List |
|---|---|---|---|---|
| Canada | To facilitate the removal of extraneous matter and to reduce moisture loss during cooking | - | To be used in a solution with sodium chloride (salt) and calcium oxide. Residue of sodium hydroxide not to exceed 70 ppm in the food. | List of Permitted Food Additives with Other Purposes of Use |
| Canada | Acidity regulator | (a) Calorie-reduced margarine; Margarine | (a) Good Manufacturing Practice | List of Permitted Acidity Regulators and Acid-Reacting Materials |
| Canada | Acidity regulator | (b) Cocoa products as defined in Volume 4 of the Food Compositional Standards Document | (b) Good Manufacturing Practice. If used singly, the amount of sodium hydroxide in neutralizing value, calculated from its weight, not to exceed the neutralizing value of 5% anhydrous potassium carbonate by weight of the cocoa product, calculated on a fat-free basis. If used in any combination with other acidity regulators, the total combined amount of these acidity regulators in neutralizing value, calculated from their respective weight, not to exceed the neutralizing value of 5% anhydrous potassium carbonate by weight of the cocoa product, calculated on a fat-free basis. This total combined amount does not include any of citric acid, phosphoric acid or tartaric acid that may be added up to their respective maximum levels of use set out in this list. | List of Permitted Acidity Regulators and Acid-Reacting Materials |
| Canada | Acidity regulator | (c) Frozen egg-white; Liquid egg-white | (c) Good Manufacturing Practice | List of Permitted Acidity Regulators and Acid-Reacting Materials |
| Canada | Acidity regulator | (d) Gelatin | (d) Good Manufacturing Practice | List of Permitted Acidity Regulators and Acid-Reacting Materials |
| Canada | Acidity regulator | (e) Ice cream mix; Ice milk mix; (Naming the flavour) partly skimmed milk; Pumping pickle, cover pickle and dry cure used in the curing of preserved meat or preserved meat by-product; (Naming the flavour) skim milk | (e) Good Manufacturing Practice | List of Permitted Acidity Regulators and Acid-Reacting Materials |
| Canada | Acidity regulator | (f) Infant formula | (f) Good Manufacturing Practice | List of Permitted Acidity Regulators and Acid-Reacting Materials |
| Canada | Acidity regulator | (g) Unstandardized foods | (g) Good Manufacturing Practice | List of Permitted Acidity Regulators and Acid-Reacting Materials |
| Canada | Acidity regulator | (h) (Naming the variety) whey cheese | (h) Good Manufacturing Practice | List of Permitted Acidity Regulators and Acid-Reacting Materials |
| Canada | Preservative | (a)Brawn; Headcheese; Meat and meat by-product loaf; Meat by-product loaf; Meat loaf; Meat lunch; Meat roll; Potted meat; Potted meat by-product; Prepared meat or prepared meat by-product; Prepared poultry meat or... | (a)Good Manufacturing Practice. The total amount of potassium diacetate or sodium diacetate, or both, from the addition of modified vinegar or otherwise added to the food, not to exceed 2,500 ppm. | List of Permitted Preservatives |
| Canada | Preservative | (b)Pumping pickle, cover pickle or dry cure used in the curing of preserved meat or preserved meat by-product | (b)Good Manufacturing Practice. The total amount of potassium diacetate or sodium diacetate, or both, from the addition of modified vinegar or otherwise added, not to exceed 2,500 ppm in the preserved meat or preserved meat by-product. | List of Permitted Preservatives |
| Canada | Preservative | (c)Unstandardized preparations of meat or meat by-product; Unstandardized preparations of poultry meat or poultry meat by-product | (c)Good Manufacturing Practice. The total amount of potassium diacetate or sodium diacetate, or both, from the addition of modified vinegar or otherwise added to the food, not to exceed 2,500 ppm. | List of Permitted Preservatives |
| Canada | Starch-modifying agent | Starch used in the manufacture of modified starch | Good Manufacturing Practice | List of Permitted Starch-Modifying Agents |
SOURCE
EU Commission
EU Food Contact Materials
EU FCM Substances
EU food-contact material rows and migration-limit fields.
| Jurisdiction | FCM no. | Ref no. | Substance | Use | SML | Regulation |
|---|---|---|---|---|---|---|
| European Union | 400 | 86720 | sodium hydroxide | additive/PPA | - | Regulation (EU) No 10/2011, Annex I |
| European Union | 400 | - | sodium hydroxide | - | - | Regulation (EC) No 450/2009, Register v1.1 |
SOURCE
JECFA
JECFA ADI
JECFA ADI Values
JECFA ADI records and evaluation years.
| Jurisdiction | Chemical name | JECFA no. | CAS | ADI | ADI upper | Function | Evaluation year |
|---|---|---|---|---|---|---|---|
| JECFA | SODIUM HYDROXIDE | - | 1310-73-2 | NOT LIMITED | - | ACIDITY_REGULATOR | 1965 |
SOURCE
ingredients
ghs classifications
Cross-Reference to Cosmetics / Chemicals / Pharma
Same-CAS public rows from adjacent Roots verticals where available.
SOURCE
Cross-vertical comparison
ingredients | ghs classifications
Cross-Vertical Regulatory Divergence
This substance has different regulatory treatment across food, cosmetics, and industrial use.
SOURCE
FAQPage JSON-LD
public food renderer rows
Frequently Asked Questions
Food-use, safety, ADI, and cross-vertical answers mirrored into FAQPage JSON-LD.
What is Sodium hydroxide used for in food?
Sodium hydroxide appears in food-use rows as: Acidity regulator; Acidity regulator; To facilitate the removal of extraneous matter and to reduce moisture loss during cooking.
Is Sodium hydroxide / E524 safe?
This page does not assign a standalone safety verdict; it renders public regulatory evidence. ADI/reference value: ADI NOT LIMITED . EU status evidence: PUBLISHED. US/FDA evidence: GRAS.
What is the ADI for Sodium hydroxide?
Sodium hydroxide has this ADI/reference value in the food-safety tables: ADI NOT LIMITED . Source: food_substances.
Is Sodium hydroxide also used in cosmetics?
Sodium hydroxide has a same-CAS cosmetics cross-reference: Sodium Hydroxide, EU status restricted.