Sodium lactate

Ball-and-stick model of the lactate anion

Names

IUPAC name

Sodium 2-hydroxypropanoate

Other names

Sodium DL-lactate; Lactic acid sodium salt; E325

Identifiers

CAS Number

72-17-3^Y

3D model (Jmol)

CHEBI:75228^N

ChEMBL1357^Y

6049^Y

E325 (antioxidants, ...)

PubChem

6286

InChI

InChI=1S/C3H6O3.Na/c1-2(4)3(5)6;/h2,4H,1H3,(H,5,6);/q;+1/p-1^Y

Key: NGSFWBMYFKHRBD-UHFFFAOYSA-M^Y
InChI=1/C3H6O3.Na/c1-2(4)3(5)6;/h2,4H,1H3,(H,5,6);/q;+1/p-1

Key: NGSFWBMYFKHRBD-REWHXWOFAR

SMILES

[Na+].[O-]C(=O)C(O)C

Properties

Chemical formula

C₃H₅NaO₃

Molar mass

112.06 g/mol

Appearance

White powder

Density

1.33 g/mL, 1.31 g/ml (60 % syrup)

Melting point

161 to 162 °C (322 to 324 °F; 434 to 435 K)

17 °C (60 % syrup)

Boiling point

113 °C (235 °F; 386 K) (60 % syrup)

Solubility in water

> 1.5 g/mL

Hazards

Flash point

< 25

Lethal dose or concentration (LD, LC):

LD₅₀ (median dose)

1000 mg/kg (intravenous, rat)

Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

(what is ^YN ?)

Infobox references

17 °C (60 % syrup)

Sodium lactate is the sodium salt of lactic acid, and has a mild saline taste. It is produced by fermentation of a sugar source, such as corn or beets, and then, by neutralizing the resulting lactic acid to create a compound having the formula NaC₃H₅O₃

As a food additive, sodium lactate has the E number E325 and is naturally a liquid product, but also is available in powder form. It acts as a preservative, acidity regulator, and bulking agent.

Sodium lactate is sometimes used in shampoo products and other similar items such as liquid soaps as it is an effective humectant and moisturizer.

Sodium lactate is used to treat arrhythmias caused by overdosing of class I antiarrythmics, as well as pressor sympathomimetics which can cause hypertension.

It also can be given intravenously as a source of bicarbonate for preventing or controlling mild to moderate metabolic acidosis in patients with restricted oral intake (for sodium bicarbonate) whose oxidative processes are not seriously impaired. However, the use in lactic acidosis is contraindicated. It can cause panic attacks in patients with existing panic disorder.

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