Complaint
| Description | It is a white mixed granular powder of lactic acid (E 270) and calcium lactate (E 327). The product is GRAS. |
| Lactic Acid content, E 270 | 58-62% |
| Calcium Lactate content, E 327 | 35-40% |
| Silicon Dioxide content, E 551 | 1-3% |
| Moisture | < 3% |
| Reducing sugars | Pass Fehling's test |
| Chloride | < 10ppm |
| Sulphate | < 200ppm |
| Iron | < 10ppm |
| Heavy metals | < 10ppm |
| Arsenic | < 1ppm |
| Mesophilic bacteria | < 1000counts/g |
| Moulds | < 100counts/g |
| Yeasts | < 100counts/g |
| L(+)-Lactic acid Basic information |
| Product Name: | L(+)-Lactic acid |
| Synonyms: | L-Lactic acid white;2-HYDROXYPROPIONIC ACID;L-Lactic acid, crystalline, 98.0%+;L-(+)-LACTIC ACID BIOXTRA;L(+)-LACTIC ACID FREE ACID 30% SOLUT;L-(+)-2-HYDROXYPROPANOIC ACID;L-2-HYDROXYPROPIONIC ACID;SARCOLACTIC ACID |
| CAS: | 79-33-4 |
| MF: | C3H6O3 |
| MW: | 90.08 |
| EINECS: | 201-196-2 |
| Product Categories: | Functional Materials;Hydroxycarboxylic Acids (for High-Performance Polymer Research);Food additive and acidulant;Reagent for High-Performance Polymer Research;Intermediates & Fine Chemicals;Pharmaceuticals;Food additives |
| Mol File: | 79-33-4.mol |
| L(+)-Lactic acid Chemical Properties |
| Melting point | 52-54°C |
| alpha | -13.5 º (c=2.5, 1.5N NaOH) |
| Boiling point | 125 °C |
| density | 1.206 g/mL at 25 °C |
| FEMA | 2611 | LACTIC ACID |
| refractive index | n20/D 1.427 |
| Fp | >230 °F |
| storage temp. | 2-8°C |
| solubility | H2O: 10 mg/mL, clear, colorless |
| pka | pK at 25°, 3.79 |
| form | Powder/Solid |
| color | White |
| optical activity | [α]20/D 13.5°, c = 2.5 in 1.5 M NaOH |
| Water Solubility | SOLUBLE |
| Sensitive | Hygroscopic |
| Merck | 14,5337 |
| JECFA Number | 930 |
| BRN | 1720251 |
| InChIKey | JVTAAEKCZFNVCJ-REOHCLBHSA-N |
| CAS DataBase Reference | 79-33-4(CAS DataBase Reference) |
| NIST Chemistry Reference | (s)-2-Hydroxypropanoic acid(79-33-4) |
| EPA Substance Registry System | L-Lactic acid (79-33-4) |
| Safety Information |
| Hazard Codes | Xi,C |
| Risk Statements | 38-41-34-36/37/38-36-35 |
| Safety Statements | 26-39-45-36/37/39-36 |
| RIDADR | 3261 |
| WGK Germany | 1 |
| RTECS | OD2800000 |
| F | 3-10 |
| TSCA | Yes |
| HazardClass | 8 |
| PackingGroup | III |
| HS Code | 29181100 |
| Toxicity | LD50 intraperitoneal in mouse: 3194mg/kg |
| MSDS Information |
| Provider | Language |
|---|---|
| ACROS | English |
| SigmaAldrich | English |
| ALFA | English |
| L(+)-Lactic acid Usage And Synthesis |
| Chemical Properties | Crystalline Solid |
| Uses | Occurs in small quantities in the blood and muscle fluid of man and animals. The lactic acid concentration increases in muscle and blood after vigorous activity. L-(+)-Lactic acid is also present in liver, kidney, thymus gland, human amniotic fluid, and o |
| Definition | ChEBI: An optically active form of lactic acid having (S)-configuration. |
| Purification Methods | Purify lactic acid by fractional distillation at 0.1mm pressure, followed by fractional crystallisation from diethyether/isopropyl ether (1:1, dried with sodium). [Borsook et al. J Biol Chem 102 449 1933.] The solvent mixture, *benzene/diethylher (1:1) containing 5% pet ether (b 60-80o) has also been used. [Brin Biochemical Preparations 3 61 1953, Beilstein 3 IV 633.] |
| Raw materials | Starch |
| Preparation Products | Methanol-->Quizalofop-p-ethyl-->FENOXAPROP-P-ETHYL-->Calcium lactate-->CARBETAMIDE-->Sodium (S)-lactate-->Sodium lactate-->L-LACTIC ACID LITHIUM SALT |
