l-Sodium lactate
CAS 312-85-6
EC 212-762-3
Formula C3H6O3.Na
MW 112.06 g/mol
Sweeteners & Food Additives Personal Care & CosmeticsFood & NutritionPharmaceuticals & HealthcareBiotechnology & Life Sciences Preservation & BiocidepH Regulation & BufferingHumectant & MoisturizingFlavoring & Acidulant
Description
L-Sodium Lactate (CAS 312-85-6) is the sodium salt of lactic acid, commercially available under trade names including PURASAL S, PURASAL S/HQ 60, and PURASAL S/PF 60. It carries no E-number designation and is commonly referred to simply as sodium lactate or sodium DL-lactate across food, cosmetic, and pharmaceutical documentation.
In food processing, sodium lactate extends shelf life of cooked meats by lowering water activity and inhibiting pathogen growth, particularly Listeria monocytogenes. In personal care formulations, it functions as a humectant by binding moisture within the stratum corneum, and as a pH buffer in leave-on skin products targeting the skin's natural acid mantle.
Sodium lactate is supplied as a liquid syrup, with grades available to meet FCC (food-grade), Ph.Eur. (pharmaceutical), and USP specifications. It is subject to REACH registration for industrial supply within the EU. Procurement teams should confirm grade suitability against application-specific purity and microbial limits.
In food processing, sodium lactate extends shelf life of cooked meats by lowering water activity and inhibiting pathogen growth, particularly Listeria monocytogenes. In personal care formulations, it functions as a humectant by binding moisture within the stratum corneum, and as a pH buffer in leave-on skin products targeting the skin's natural acid mantle.
Sodium lactate is supplied as a liquid syrup, with grades available to meet FCC (food-grade), Ph.Eur. (pharmaceutical), and USP specifications. It is subject to REACH registration for industrial supply within the EU. Procurement teams should confirm grade suitability against application-specific purity and microbial limits.
Physical Properties
| Melting Point | <25 °C |
| Density | 1.33 |
| Appearance | liquid |
| Color | 50 APHA max. |
| Form | syrup |
| Refractive Index | 1.422-1.425 |
| pH | 7.48(1 mM solution);7.85(10 mM solution);8.3(100 mM solution);8.61(1000 mM solution) |
Safety & Handling (Learn More)
Danger GHS05 GHS07
H
H315H318H319
P
P264P280P317P321P264+P265P302+P352P332+P317P337+P317P362+P364P305+P351+P338P305+P354+P338
Trade & Regulatory
| WGK (Germany) | 1 |
Other Names
Sodium 2-HydroxypropanoateLacolinPURASAL(R)SPer-glycerinSodium lactatePURASAL(R)S/SP 60PURASAL(R)S/PF 60Sodium DL-lactatePURASAL(R)S/HQ 60
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