Sodium lactate
312-85-6 · 72-17-3 · 81273-81-6 · (+/-)-2-Hydroxypropionic acid sodium salt · (2R)-2-Hydroxypropanoate (sodium) · 2-Hydroxypropanoic Acid Sodium Salt · 2-Hydroxypropanoic acid, monosodium salt · 2-hydroxypropionic acid sodium salt · 2-Hydroxypropionic acid sodium salt solution · C3H5NaO3 · CCRIS 7316 · Compound sodium lactate injection · compound sodium lactate solution · D-LACTIC ACID, Na SALT, 40% SOLN · DL-Lactic acid sodium salt · dl-sodium lactate · E 325 · INS NO.325 · INS-325 · Lacolin · Lactate, Sodium · Lactic acid sodium salt · Lactic acid, monosodium salt · Lactic acid, monosodium salt (8CI) · Lactic acid, sodium salt (VAN) · Mediject L · Mediject L (TN) · Monosodium 2-hydroxypropanoate · Monosodium lactate · Natrii lactatis solutio composita · Natrum lacticum · Per-glycerin · Propanoic acid, 2-hydroxy-, monosodium salt · Propanoic acid, 2-hydroxy-, monosodium salt (9CI) · Propanoic acid, 2-hydroxy-, sodium salt (1:1) · Purasal S/SP 60 · Sod lact co · Sodium (dl)-lactate · Sodium (lactate) anhydrous · sodium 2-hydroxypropanoate · Sodium 2-Hydroxypropionate · Sodium alpha-hydroxypropionate · Sodium DL-lactate · Sodium DL-Lactate (60% w/w in H2O) · Sodium DL-lactate solution · Sodium l-lactate-1-13c · Sodium lactate · Sodium lactate (7CI) · Sodium lactate (JAN/USP) · Sodium lactate 0.167 molar in plastic container · Sodium lactate 1/6 molar in plastic container · Sodium lactate in plastic container · SODIUM LACTATE, (+/-)- · Sodium lactate, 60% in water · sodium2-hydroxypropanoate · SodiumDL-lactate · Solucion de lactato sodico compuesta · Solute de lactate de sodium compose · E325 · 325 · Sodium 2-hydroxypropanoate · Sodium lactate · Lactat de sodiu · Lactate de sodium · Lactato de sódio · Lactato sódico · Lattat tas-sodju · Lattato di sodio · Mleczan sodu · Mliečnan sodný · Mléčnan sodný · Naatriumlaktaat · Natrijev laktat · Natrio laktatas · Natriumlactaat · Natriumlactat · Natriumlaktaatti · Natriumlaktat · Nátrium-laktát · Nātrija laktāts · Sodium lactate · Γαλακτικό νάτριο · Натриев лактатE number E325INS 325CAS 72-17-3
Listed as an acidity regulator by Canada, Codex and the US.
Listed as acidity regulators (CA, US, Codex) · preservatives (CA, US) · emulsifiers (US, Codex) · humectants (US, Codex) · antioxidants (Codex) · thickeners (Codex) · flavour enhancers (US) · emulsifying salts (Codex) · bulking agents (Codex) · flavouring agents and adjuvants (US)
- Canada: Acidity regulator — Health Canada, List of Permitted Acidity Regulators and Acid-Reacting Materials (List 10)
- United States: pH control agent — FDA, Substances Added to Food: SODIUM LACTATE
- United States: pH control agents — 21 CFR 184.1768, citing 21 CFR 170.3(o)(23)
- Codex Alimentarius: Acidity regulator — CXS 192-1995 Table One, INS 325
- Canada: Preservative — Health Canada, List of Permitted Preservatives (List 11)
- United States: Antimicrobial agent — FDA, Substances Added to Food: SODIUM LACTATE
- United States: Emulsifier or emulsifier salt — FDA, Substances Added to Food: SODIUM LACTATE
- United States: Emulsifiers and emulsifier salts — 21 CFR 184.1768, citing 21 CFR 170.3(o)(8)
- Codex Alimentarius: Emulsifier — CXS 192-1995 Table One, INS 325
- United States: Humectants — 21 CFR 184.1768, citing 21 CFR 170.3(o)(16)
- Codex Alimentarius: Humectant — CXS 192-1995 Table One, INS 325
- Codex Alimentarius: Antioxidant — CXS 192-1995 Table One, INS 325
- Codex Alimentarius: Thickener — CXS 192-1995 Table One, INS 325
- United States: Flavor enhancer — FDA, Substances Added to Food: SODIUM LACTATE
- United States: Flavor enhancers — 21 CFR 184.1768, citing 21 CFR 170.3(o)(11)
- Codex Alimentarius: Emulsifying salt — CXS 192-1995 Table One, INS 325
- Codex Alimentarius: Bulking agent — CXS 192-1995 Table One, INS 325
- United States: Flavoring agent or adjuvant — FDA, Substances Added to Food: SODIUM LACTATE
- United States: Flavoring agents and adjuvants — 21 CFR 184.1768, citing 21 CFR 170.3(o)(12)

Sodium lactate is a humectant and preservative used heavily in processed meats, where it extends shelf life and holds moisture. Like lactic acid it is not a dairy ingredient.
Where it is and isn’t permitted
| Jurisdiction | Status | Scope and limits | Citation |
|---|---|---|---|
| Australia and New Zealand | Permitted, with conditions | 55 food categories highest permitted level 2,000 mg/kg Show every food category
| Food Standards Code, Schedule 15, S15—5and 54 further provisionsretrieved 2026-10-17 |
| Canada | Permitted, with conditions | no numerical limit (good manufacturing practice) 6 permitted uses Show every permitted use
| Health Canadaand 5 further provisionsretrieved 2026-10-17 |
| European Union | Permitted, with conditions | 73 food categories Show every food category
| Regulation (EC) No 1333/2008, Annex IIand 72 further provisionsretrieved 2026-10-18 |
| Great Britain | Permitted, with conditions | 71 food categories Show every food category
| Assimilated Regulation (EC) No 1333/2008and 70 further provisionsretrieved 2026-10-18 |
| Japan | Permitted, with conditions | Designated additive: Appended Table 1, item 301, 乳酸ナトリウム (“Sodium Lactate” in the unofficial English translation). …Designated additive: Appended Table 1, item 301, 乳酸ナトリウム (“Sodium Lactate” in the unofficial English translation). Standards for use — Specifications and Standards for Foods, Food Additives, etc. (MHW Notification No. 370 of 1959), Part II (Food Additives), F (Standards for use): The Notification sets no standard for use (使用基準) for this additive, so it is not restricted there to particular foods or amounts. Compositional specifications for this additive, in the same Notification, are not imported and are not shown here; nor are the general rules in F 添加物一般, which apply to every additive. | Regulations for Enforcement of the Food Sanitation Act (MHW Ordinance No. 23 of 1948), Appended Table 1retrieved 2026-10-18 |
| South Korea | Permitted, with conditions | Designated food additive: Standards and Specifications for Food Additives, Part III, 1. …Designated food additive: Standards and Specifications for Food Additives, Part III, 1. 일반식품첨가물 (general food additives), 젖산나트륨 (“Sodium Lactate”, the English the Code prints beside it); the Code marks it as also usable as a nutrient fortifier; 3. 영양강화제 (nutrient fortifiers), 젖산나트륨; nutrient: 나트륨 (Na); the Code marks it as also usable as a general food additive. Main use (주용도) of 젖산나트륨: 산도조절제, 향미증진제, 유화제. Standard for use (사용기준) of 젖산나트륨: (1) [to be used under the general standard for use in II. 2. 1), the minimum amount that achieves the technical effect, with no limit set for this additive in particular] “II. 2. 1)의 규정에 따라 사용하여야 한다.” The Korean is the standard as published. There is no official English translation of the current Code (the English version on MFDS’s website is the 2020 edition and has no legal effect); the English in square brackets is this site’s description of what each sentence does, not a translation of the foods or the levels. Compositional specifications (Part IV) are not imported, nor are the general standards in Part II, which apply to every additive. | Standards and Specifications for Food Additives (식품첨가물의 기준 및 규격), MFDS Notification, Part III (Standards for use, by item)retrieved 2026-10-18 |
| United States | Permitted | 21 CFR 184.1768retrieved 2026-10-17 | |
| Codex Alimentarius | Permitted, with conditions | 15 food categories no numerical limit (good manufacturing practice) Show every food category and its notes
| CXS 192-1995 Table Three, INS 325and 15 further provisionsretrieved 2026-09-07 |
How much is permitted
A listing usually limits the quantity as well as the food. Only one of the forms that takes is a figure: quantum satis and good manufacturing practice permit the amount the technological effect requires and no more, which is a limit rather than the absence of one. Figures below are the range across every food category this page is listed in, and categories differ between regulators — see how much is permitted.
| Australia and New Zealand | 2,000 mg/kg | 1 numeric limit, 54 GMP |
|---|---|---|
| Canada | — | 6 GMP |
| European Union | — | 46 several limits, 5 quantum satis, 22 no quantity stated |
| Great Britain | — | 71 quantum satis |
| Japan | — | 1 no quantity stated |
| South Korea | — | 1 no quantity stated |
| United States | — | 1 no quantity stated |
| Codex Alimentarius | — | 16 GMP |
What it is made from
Made by neutralising fermentation-derived lactic acid with sodium hydroxide. The lactic acid comes from fermenting maize or beet sugar, not from milk.
- Vegan
- Vegetarian
Compare other additives on the dietary indexes.
- CAS registry number
- 72-17-3
- InChIKey
- NGSFWBMYFKHRBD-UHFFFAOYSA-M
- PubChem
- CID 23666456
The two specifications, compared
The European Union sets identity and purity by regulation; JECFA publishes its own through FAO, advisory until a country adopts it. Both documents are below in full. These are the parameters each puts a number on.
| Parameter | European Union | JECFA |
|---|---|---|
| Assay | no less than 57 % | no less than 95 % |
| Lead | no more than 2 mg/kg | no more than 2 mg/kg |
| Arsenic | no more than 3 mg/kg | — |
| Mercury | no more than 1 mg/kg | — |
One parameter differs between the two documents. A difference is not a disagreement about safety: the two are revised on their own cycles, and an assay or a drying loss can be measured against a different preparation of the substance, which is why only the contaminant ceilings are marked. Within the EU the EU's figure is the one that binds.
How the EU defines it
The legal specification an additive must meet to be sold as this E number in the EU — what it is, how it may be made, and the purity it must reach. From Commission Regulation (EU) No 231/2012.
E 325 Sodium lactate
Assay, identification and purity criteria
Description and assay
- Einecs
- 200-772-0
- Chemical name
- Sodium lactate; Sodium 2-hydroxypropanoate
- Chemical formula
- C₃H₅NaO₃
- Molecular weight
- 112,06 (anhydrous)
- Assay
- Content not less than 57 % and not more than 66 %
- Description
- Colourless, transparent, liquid. Odourless, or with a slight, characteristic odour
Identification
- Test for lactate
- Passes test
- Test for sodium
- Passes test
- pH
- 6,5 to 7,5 (20 % aqueous solution)
Purity criteria
- Acidity
- Not more than 0,5 % after drying expressed as lactic acid
- Arsenic
- Not more than 3 mg/kg
- Lead
- Not more than 2 mg/kg
- Mercury
- Not more than 1 mg/kg
- Reducing substances
- No reduction of Fehling's solution
How JECFA defines it
The international specification for identity and purity, prepared by the Joint FAO/WHO Expert Committee on Food Additives and published by FAO. It is a different document from any above, written by a different body and revised on its own cycle; it is advisory, and a country adopts it or does not.
INS 325 Sodium Lactate (solution)
Synonyms: INS No. 325
Assay, identification and purity criteria
Description and assay
- Specification history
- Prepared at the 18th JECFA (1974), published in NMRS 54B (1975) and in FNP 52 (1992). Metals and arsenic specifications revised at the 61st JECFA (2003). An ADI 'not limited' for lactic acid and its salts was established at the 23rd JECFA (1979)
- Chemical names
- Sodium lactate, sodium 2-hydroxypropanoate
- C.A.S. number
- 72-17-3
- Chemical formula
- C 3 H 5 NaO 3
- Formula weight
- 112.06 (anhydrous)
- Assay
- Not less than 95% and not more than 110% of the labelled amount. This specification is based on a 60% w/w solution of C 3 H 5 NaO 3 in water.
- DESCRIPTION
- Colourless, transparent, liquid. Odourless, or with a slight, characteristic odour
- FUNCTIONAL USES
- Antioxidant synergist, bodying agent, humectant
- METHOD OF ASSAY
- Weigh accurately about 0.6 g of the sample into a small beaker, and evaporate to dryness. Add to the residue 60 ml of a 1 in 5 mixture of acetic anhydride in glacial acetic acid, and stir until the residue is completely dissolved. Add crystal violet TS and titrate with 0.1 N perchloric acid to a blue end-point. Perform a blank determination, and make any necessary correction. Each ml of 0.1 N perchloric acid is equivalent to 11.21 mg of C 3 H 5 NaO 3 .
Identification
- Ignition
- Ignite to an ash. The ash is alkaline, and an effervescence occurs when acid is added
- Colour reaction
- Overlay 2 ml of the sample on 5 ml of a 1 in 100 solution of catechol in sulfuric acid. A deep red colour is produced at the zone of contact
- Test for lactate (Vol. 4)
- Passes test
- Test for sodium (Vol. 4)
- Passes test
Purity criteria
- Acidity
- Neutralization of 1 g of sample shall require not more than 0.5 ml of 0.1 N sodium hydroxide solution, using phenolphthalein TS
- pH (Vol. 4)
- 6.5 - 7.5 (1 in 5 soln)
- Lead (Vol. 4)
- Not more than 2 mg/kg Determine using an atomic absorption technique appropriate to the specified level. The selection of sample size and method of sample preparation may be based on the principles of the method described in Volume 4, “Instrumental Methods.”
Authorised in other additives, enzymes, flavourings and nutrients
These authorisations are not for use in food. They let this substance be used inside another additive, a food enzyme, a flavouring or a nutrient preparation — often as a carrier — and it reaches food only as part of that product. Annex III to Regulation (EC) No 1333/2008.
| Part | May be used in | Maximum level | Citation |
|---|---|---|---|
| Annex III, Part 2: Food additives other than carriers in food additives | All food additive preparationsAuthorised as a member of Table 1 of Part 6, listed as "Table 1" Note (1): Except enzymes authorised as food additives. | quantum satis | Regulation (EC) No 1333/2008, Annex III, Part 2, via Table 1 of Part 6 |
| Annex III, Part 3: Food additives including carriers in food enzymes | Food enzymesNote (1): Including enzymes authorised as food additives. | In enzyme preparation: quantum satis In final food except beverages: quantum satis In beverages: quantum satis | Regulation (EC) No 1333/2008, Annex III, Part 3 |
| Annex III, Part 4: Food additives including carriers in food flavourings | All flavouringsAuthorised as a member of Table 1 of Part 6, listed as "Table 1" | quantum satis | Regulation (EC) No 1333/2008, Annex III, Part 4, via Table 1 of Part 6 |
| Annex III, Part 5, Section A: Food additives added in nutrients except in nutrients intended to be used in foodstuffs listed in Part E, point 01.10, of Annex II and foodstuffs for infants and young children listed in Part E, point 13.1, of Annex II | All nutrients | quantum satis | Regulation (EC) No 1333/2008, Annex III, Part 5, Section A |
Every name it appears under
83 recorded names. A label may use any of them.
E number
- E325
INS number
- 325
CAS registry number
- 312-85-6
- 72-17-3
- 81273-81-6
As it appears in regulation
- Sodium lactate
Other names
- (+/-)-2-Hydroxypropionic acid sodium salt
- (2R)-2-Hydroxypropanoate (sodium)
- 2-Hydroxypropanoic Acid Sodium Salt
- 2-Hydroxypropanoic acid, monosodium salt
- 2-hydroxypropionic acid sodium salt
- 2-Hydroxypropionic acid sodium salt solution
- C3H5NaO3
- CCRIS 7316
- Compound sodium lactate injection
- compound sodium lactate solution
- D-LACTIC ACID, Na SALT, 40% SOLN
- DL-Lactic acid sodium salt
- dl-sodium lactate
- E 325
- INS NO.325
- INS-325
- Lacolin
- Lactate, Sodium
- Lactic acid sodium salt
- Lactic acid, monosodium salt
- Lactic acid, monosodium salt (8CI)
- Lactic acid, sodium salt (VAN)
- Mediject L
- Mediject L (TN)
- Monosodium 2-hydroxypropanoate
- Monosodium lactate
- Natrii lactatis solutio composita
- Natrum lacticum
- Per-glycerin
- Propanoic acid, 2-hydroxy-, monosodium salt
- Propanoic acid, 2-hydroxy-, monosodium salt (9CI)
- Propanoic acid, 2-hydroxy-, sodium salt (1:1)
- Purasal S/SP 60
- Sod lact co
- Sodium (dl)-lactate
- Sodium (lactate) anhydrous
- sodium 2-hydroxypropanoate
- Sodium 2-Hydroxypropionate
- Sodium alpha-hydroxypropionate
- Sodium DL-lactate
- Sodium DL-Lactate (60% w/w in H2O)
- Sodium DL-lactate solution
- Sodium l-lactate-1-13c
- Sodium lactate
- Sodium lactate (7CI)
- Sodium lactate (JAN/USP)
- Sodium lactate 0.167 molar in plastic container
- Sodium lactate 1/6 molar in plastic container
- Sodium lactate in plastic container
- SODIUM LACTATE, (+/-)-
- Sodium lactate, 60% in water
- sodium2-hydroxypropanoate
- SodiumDL-lactate
- Solucion de lactato sodico compuesta
- Solute de lactate de sodium compose
Systematic names
- Sodium 2-hydroxypropanoate
Hazard reference values
| Type | Value | Population | Assessed by | Opinion |
|---|---|---|---|---|
| ADI | not limited | — | JECFA | 1974 |
Evidence and how bodies read it
Studies, and the differing conclusions regulators drew from them, are curated rather than machine-read, and none has been written for this substance yet.
Common questions
Assembled from what is above, in the words the questions are usually asked in. Each answer is the same statement the relevant section makes, with the same citations behind it.
- What is E 325?
- E 325 is Sodium lactate. Sodium lactate is a humectant and preservative used heavily in processed meats, where it extends shelf life and holds moisture. Like lactic acid it is not a dairy ingredient.
- What is Sodium lactate used for in food?
- It is listed as an acidity regulator — the role Canada, Codex and the US assign it. This page shows every function each regulator records, with the citation for each.
- Where is Sodium lactate permitted?
- Of the seven regulators this site reads, Australia and New Zealand, Canada, the EU, Great Britain, Japan, South Korea, the US and the Codex standard permit it. Each permission is for named foods at named levels, not a blanket one; the table on this page gives them with citations.
- Is Sodium lactate vegan?
- Yes. Sodium lactate is not derived from animals, and is suitable for vegetarians. This page says what it is made from and how.
Sources for this page
- anz retrieved 2026-10-17
- ca retrieved 2026-10-17
- eu retrieved 2026-10-18
- gb retrieved 2026-10-18
- jp retrieved 2026-10-18
- kr retrieved 2026-10-18
- ecfr retrieved 2026-10-17
- gsfa retrieved 2026-09-07
- euspecs retrieved 2026-10-18
- jecfaspecs retrieved 2026-09-23
Full licence terms and publisher details on Sources. How this page is built and updated: Method.
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