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DL-Lactic acid CAS: 50-21-5 Acidum lacticum alpha-Hydroxypropionic acid 

Payment Terms: T/T,L/C,WU 
Place of Origin: Shandong, China (Mainland) 
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Product Detail

Means of Transport: Ocean,Land,Air
Packing: According to the request of...
Brand Name: MOSINTER
Melting point: 18°C
Density: 1.209 g/mL at 25 °C
Refractive index: n20/D 1.4262
Storage condition: 2-8°C
Soluble: SOLUBLE
Production Capacity: 5000 Ton/Year
Delivery Date: within 7 days
CAS No.: 50-21-5
Boiling point: 122 °C15 mm Hg(lit.)
Specific rotation: -0.05 º (c= neat 25 ºC)
Flashing point: >230 °F
Form: syrup

Lactic acid is a carboxylic acid and has ahydroxyl group adjacent to the carboxyl group, making it an alpha hydroxy acid (AHA).

DL-Lactic acid (CAS: 50-21-5)

 

Item

Index

Appearance

Colorless to   light yellow liquid

Melting point

18°C

Boiling point

122 °C15 mm   Hg(lit.)

Flash point

>230 °F

Density

1.209 g/mL at   25 °C

Refractive index

n20/D 1.4262

Storage   Condition

2-8°C

Lactic acid is a chemical compound that plays a role in various biochemical processes and was first isolated in 1780 by the Swedish chemist Carl Wilhelm Scheele. Lactic acid is a carboxylic acid with the chemical formula C3H6O3. It has ahydroxyl group adjacent to the carboxyl group, making it an alpha hydroxy acid (AHA).

In solution, it can lose a proton from the carboxyl group, producing the lactate ion CH3CH(OH)COO−. Compared to acetic acid, its pKa is 1 unit less, meaning lactic acid deprotonates ten times more easily than acetic acid does. This higher acidity is the consequence of the intramolecular hydrogen bridge between the α-hydroxyl and the carboxylate group, making the latter less capable of strongly attracting its proton.

Lactic acid is miscible with water and with ethanol, and is hygroscopic.

Lactic acid is chiral and has two optical isomers. One is known as L-(+)-lactic acid or (S)-lactic acid and the other, its mirror image, is D-(−)-lactic acid or (R)-lactic acid.

In animals, L-lactate is constantly produced from pyruvate via the enzyme lactate dehydrogenase (LDH) in a process offermentation during normal metabolism and exercise. It does not increase in concentration until the rate of lactate production exceeds the rate of lactate removal, which is governed by a number of factors, including monocarboxylate transporters, concentration and isoform of LDH, and oxidative capacity of tissues. The concentration of blood lactate is usually 1–2 mmol/L at rest, but can rise to over 20 mmol/L during intense exertion.

In industry, lactic acid fermentation is performed by lactic acid bacteria, which convert glucose and sucrose to lactic acid. These bacteria can also grow in the mouth; the acid they produce is responsible for the tooth decay known ascaries.

In medicine, lactate is one of the main components of lactated Ringer's solution and Hartmann's solution. Theseintravenous fluids consist of sodium and potassium cations along with lactate and chloride anions in solution with distilled water, generally in concentrations isotonic with human blood. It is most commonly used for fluid resuscitationafter blood loss due to trauma, surgery, or burn injury.

Pharmaceutical and cosmetic applications

Lactic acid is also employed in pharmaceutical technology to produce water-soluble lactates from otherwise-insoluble active ingredients. It finds further use in topical preparations and cosmetics to adjust acidity and for its disinfectant and keratolytic properties.

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Company Info

MOSINTER GROUP LIMITED [China (Mainland)]

Offline Showroom in USA

Business Type:Manufacturer, Trading Company
City: Ningbo
Province/State: Zhejiang
Country/Region: China (Mainland)

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