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252476

Sigma-Aldrich

Lactic acid solution

ACS reagent, ≥85%

Synonym(s):

2-Hydroxypropionic acid solution, DL-Lactic acid solution

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About This Item

Linear Formula:
CH3CH(OH)CO2H
CAS Number:
50-21-5
Molecular Weight:
90.08
Beilstein/REAXYS Number:
5238667
MDL number:
MFCD00004520
UNSPSC Code:
12352100
PubChem Substance ID:
24855212
NACRES:
NA.21

grade

ACS reagent

Quality Level

200

assay

85.0-90.0%

concentration

≥85%
85.0-90.0% in H2O

impurities

H2SO4, passes test (darkened)

ign. residue

≤0.02%

refractive index

n20/D 1.4251

density

1.209 g/mL at 25 °C

anion traces

chloride (Cl-): ≤0.001%
sulfate (SO42-): ≤0.002%

cation traces

Fe: ≤5 ppm
heavy metals: ≤5 ppm (by ICP)

SMILES string

CC(O)C(O)=O

InChI

1S/C3H6O3/c1-2(4)3(5)6/h2,4H,1H3,(H,5,6)

InChI key

JVTAAEKCZFNVCJ-UHFFFAOYSA-N

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Application

Lactic acid solution has been used in the preparation of poly(lactic acid) (PLA)/lactic acid (LA) blends to enhance the biodegradability rate of PLA.

Other Notes

Contains varying amounts of intermolecular esterification products.

pictograms

Corrosion
GHS05

signalword

Danger

hcodes

H314

Hazard Classifications

Eye Dam. 1 - Skin Corr. 1C

supp_hazards

EUH071

Storage Class

8A - Combustible corrosive hazardous materials

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type ABEK (EN14387) respirator filter

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Certificates of Analysis (COA)

Lot/Batch Number
MKCW0260
MKCV5025
0000223203
MKCT9061
MKCS8662

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Biodegradability of poly (lactic acid)(PLA)/lactic acid (LA) blends using anaerobic digester sludge
Lee JC, et al
Macromolecular Research, 24(8), 741-747 (2016)
A literature review of poly (lactic acid).
Garlotta D.
Journal of Polymers and the Environment, 9(2), 63-84 (2001)
Kwon et al.
Enzyme and microbial technology, 26(2-4), 209-215 (2000-02-26)
Batch fermentation studies were performed to evaluate the potentials of a complex nitrogen source, soybean, as an alternative to yeast extract for the economical production of lactic acid by Lactobacillus rhamnosus. An enzyme-hydrolysate of soybean meal, Soytone, with an adequate
L (+) lactic acid fermentation and its product polymerization.
Narayanan N, et al.
Electronic journal of Biotechnology, 7(2), 167-178 (2004)
Mauro Vasconi et al.
Foods (Basel, Switzerland), 9(5) (2020-05-01)
Processed fish roes are acquiring considerable importance in the modern food market, entering more and more often as an ingredient in food preparation and as caviar substitutes. In this study, we defined quality, traceability and safety issues related to processed
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