D-lactic acid

English name

D-lactic acid

Chinese name

D-乳酸

Chemical name

α-Hydroxypropionic acid

Molecular formula

C₃H₆O₃

Molecular weight

90.0779

Structural formula

Properties

Colorless to yellowish clear viscous liquid, slightly acid taste, with hygroscopicity, aqueous solution shows acid reaction. It can be mixed with water, ethanol or ether arbitrarily, and is insoluble in chloroform.

Index

Project

Index

 Lactic acid content（%）                ≥

90

 Content of D-lactic acid in total lactic    acid（%）                               ≥

99.5

 Ignition residue（%）                  ≤

0.1

 Chloride（Calculated by CI^-,%）          ≤

0.002

 Sulfate（Calculated bySO₄^2-，% ）       ≤

0.005

 Ferric salt（Calculated by Fe，%）       ≤

0.001

 Plumbum （Pb，mg/kg）                   ≤

5

Packaging

Plastic drum or filling truck

Storage conditions

Ventilated, cool and dry

Application field

D - lactic acid in the field of agricultural applications: high optical purity of D - lactic acid as a chiral center is a precursor of a variety of chiral compounds, herbicides in agriculture and other fields have a wide range of applications, taking D - lactic acid methyl ester as raw material to produce herbicide of risk-benefit ratio, wide spectrum, the advantages of flexible has replaced paraquat, weeding ether herbicides such as poison, high pollution, is becoming more and more wide prospect of market.

The application of D-lactic acid in the field of medicine and chemical industry: the lactic acid lipids with D-lactic acid as raw material should be widely used in perfume, synthetic resin coating, adhesives, inks, industrial cleaning agents, etc. D-methyl lactate is used as the precursor and intermediate of other chiral compounds in medicine, pesticide and solvent. Because of its unique chiral structure, it has wide and unique applications in the fields of medicine, agrochemical and chiral chemical intermediates.

Application of D-lactic acid in the field of new materials: Poly (D-lactic acid) (PDLA) and Poly (DL-lactic acid) (PDLLA) produced from D-lactic acid are new green polymer materials, which are superior to POLY (L-lactic acid) (PLLA) in heat resistance, mechanical strength and corrosion resistance, etc. At the same time, according to relevant studies, the physical properties of PLLA/PDLA generated by equal proportion polymerization are significantly different from those of PLLA and PLLD alone. PDLLA has better heat resistance and hydrolysis resistance than PLLA and PLLD alone. PDLLA can be used in textile, aviation, new 3D printing materials and other fields.