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Shanghai Dingwujin Chemical Co., Ltd. is one of the leading manufacturers and suppliers of lactic acid in China. We are committed to the chemical distribution across Central & Eastern Europe and Ukraine. We warmly welcome you to wholesale customized lactic acid made in China here from our factory.

Lactic Acid

Introduction

Lactic acid is a carboxylic acid compound containing a hydroxyl group and plays an important role in various physiological processes. Its industrial grade appears as a colorless to pale yellow liquid, while the pure product is a colorless, odorless liquid. It is hygroscopic and miscible with water, ethanol, and glycerol.

Characteristics

Molar Weight	90 g/mol
Melting Point	18 °C
Boiling Point	122 °C
Density	1.19 g/cm^₃
Forms	Yellow, Liquid (clear)

Product Grades

Food Grade

Used as a food additive, acidulant, and preservative. Strict control over heavy metals (lead, arsenic, etc.) and microbial indicators. Purity is typically ≥80% (as lactic acid) or higher.

Pharmaceutical Grade

Used in the production of drugs such as calcium lactate and sodium lactate, as well as medical disinfectants. Extremely high requirements for optical purity (L-isomer content), chlorides, sulfates, and heavy metals. Purity is typically ≥99%.

Reagent Grade

Used in scientific research and analysis (e.g., HPLC standards). Available in grades such as Guaranteed Reagent (GR) and Analytical Reagent (AR), with purity ranging from 98.0% to 99.8%.

Industrial Grade

Used in the synthesis of polylactic acid (PLA), leather processing, and general chemical intermediates. Purity is relatively lower (typically 80%–90%), with less stringent limits on specific impurities.

Standard stock items are of industrial grade. For special grade orders, please contact us for complete documentation.

Uses and Applications

Key applications

Cosmetic Products
Moisturizing Products
Hair Care
Buffer Agent
Leather Processing
Metal Finishing
Wine Production
pH Control
Pharmaceuticals
Skin Care Products
Beverage
Buffing Compounds
Personal Care
Anti-ageing Products

Industries

Beauty & Personal Care
Pharma
Food & Nutrition

Lactic Acid Used in the Plastic Industry

Lactic acid, as the core monomer of polylactic acid (PLA), is used in the manufacture of biodegradable plastic bags and agricultural mulch films.

Lactic Acid Used in the Pharmaceutical Industry

● Pharmaceutical synthesis: Used in the production of calcium lactate (calcium supplement), sodium lactate (for acidosis correction), ferrous lactate (iron supplement), and infusion preparations such as erythromycin Ringer's solution.

● Biomarker: As a key mediator of L-lactylation modification, it regulates eukaryotic glycolysis and gene expression, serving as a cutting-edge tool in disease research.

Lactic Acid Used in the Food Industry

Lactic acid is mainly used as an acidulant and preservative, with wide applications in beverages (such as beer and lactic acid bacteria drinks), confectionery, and vegetable preservation. It is highly safe and can effectively regulate pH levels.

Lactic Acid Used in the Cosmetic Industry

Lactic acid is an alpha-hydroxy acid (AHA) that combines mild exfoliation with potent moisturizing properties. At low concentrations, it promotes stratum corneum renewal and fades pigmentation; at high concentrations, it enhances skin hydration, making it suitable for sensitive skin care.

Lactic Acid Used in the Coating Industry

Lactic acid is used to produce ester compounds such as methyl lactate and ethyl lactate, which serve as environmentally friendly solvents, replacing traditional toxic organic solvents in the coatings industry.

Lactic Acid Used in the Pharmaceutical Industry

● Pharmaceutical intermediate: Used in the preparation of mineral supplements such as calcium lactate, sodium lactate, and zinc lactate, as well as infusion preparations like erythromycin Ringer's solution.

● Clinical diagnostic marker: Blood lactate concentration is a key indicator for assessing tissue hypoxia, shock, and energy metabolism status.

● Disinfection and care: High-purity lactic acid is used for sterilization in operating rooms and wards, and certain formulations are applied to regulate fluid acid-base balance.

Lactic Acid Used in the New Materials Industry‌‌

High-purity lactic acid is the core raw material for producing biodegradable polylactic acid (PLA), which is widely used in packaging containers, medical sutures, 3D printing filaments, and agricultural mulch films.