| Identification | More | [Name]
Methyl lactate | [CAS]
547-64-8 | [Synonyms]
2-HYDROXYPROPANOIC ACID METHYL ESTER
DL-METHYL LACTATE
LACTIC ACID METHYL ESTER
METHYL DL-LACTATE
METHYL (+/-) LACTATE
METHYL LACTATE
1-hydroxyethanecarboxylicacid,methylester
2-hydroxy-propanoicacimethylester
2-hydroxypropionicacid,methylester
2-hydroxy-propionicacidmethylester
lactatedemethyle
Methyl 2-hydroxypropanoate
methyl-2-hydroxypropanoate
methyl2-hydroxypropanoate
methyl-2-hydroxypropionate
methyl2-hydroxypropionate
methylalpha-hydroxypropionate
Propanoicacid,2-hydroxy-,methylester
LACTIC ACID METHYL ESTER 98+%
Milchsremethylester | [EINECS(EC#)]
208-930-0 | [Molecular Formula]
C4H8O3 | [MDL Number]
MFCD00066367 | [Molecular Weight]
104.1 | [MOL File]
547-64-8.mol |
| Safety Data | Back Directory | [Hazard Codes ]
Xi | [Risk Statements ]
R10:Flammable.
R36/37:Irritating to eyes and respiratory system . | [Safety Statements ]
S24:Avoid contact with skin . | [RIDADR ]
UN 3272 3/PG 3
| [WGK Germany ]
1
| [RTECS ]
OD5670000
| [F ]
21 | [TSCA ]
Yes | [HazardClass ]
3.2 | [PackingGroup ]
III | [HS Code ]
29181100 | [Hazardous Substances Data]
547-64-8(Hazardous Substances Data) |
| Hazard Information | Back Directory | [Hazard]
Moderate fire risk. | [Description]
Methyl lactate is a compound with many uses. It can be used as a solvent, as a starting material for the manufacture of polyiactic acid, or as a starting material for numerous other reactions. For example, it can be used as intermediate in lactic acid purification, and as building block in the synthesis of chiral components, e.g., pesticides, and as a starting material for lactide manufacture. | [Chemical Properties]
clear colorless liquid | [Chemical Properties]
Methyl lactate is a colorless, transparent liquid. | [Uses]
Cellulose acetate solvent. | [Application]
One important use of methyl lactate is use in the manufacture of methyl acrylate, which is a starting material for the manufacture of acrylate polymers. Additionally methyl acrylate is a suitable starting material for acrylic acid and other esters like ethyl acrylate and butyl acrylate. | [Definition]
ChEBI: A lactate ester resulting from the formal condensation of the carboxy group of 2-hydroxypropanoic acid with methanol. | [Preparation]
Bringing an aqueous liquid comprising lactic acid, methanol, and at least 5 wt.% of a dissolved chloride salt selected from magnesium chloride, calcium chloride, and zinc chloride to reaction conditions, thereby obtaining methyl lactate, wherein an extractant is provided to the reaction mixture before, during, and/or after formation of methyl lactate,Subjecting the reaction mixture to a liquid-liquid separation step wherein an organic phase comprising methyl lactate and extractant is separated from an aqueous phase comprising dissolved chloride salt.The wt.% is calculated on the weight of the aqueous liquid. It has been found that the process according to the invention makes it possible to manufacture methyl lactate efficiently and in high yield. | [Production Methods]
Methyl lactate is prepared by the esterification of methyl
alcohol with lactic acid . Methyl lactate is used as
a solvent for nitrocellulose, cellulose acetate, cellulose
acetobutyrate, cellulose acetopropionate, lacquers, and
stains . It is also used as a solvent for various forms
of cellulose, as a component in lacquers and stains, and as an
intermediate for an herbicide. Ethyl lactate can serve to
reduce the alkalinity in cosmetic preparations. It is also
used as a solvent for basic dyes, in the manufacture of lacquers and safety glass, as a solvent for various forms of
cellulose, as a component of varnishes, and as a food
flavoring agent. Cetyl lactate (hexadecyl 2-hydroxypropionate)
[CH3CHOOH)COOC16H33] occurs as a waxy solid. | [Safety Profile]
Methyl lactate has been classed as non-irritant to the eyes of guinea pigs.
The estimated average lethal dose for the female rat following i.p. injection of methyl lactate was >2000 mg/kg body weight. Observations included narcosis, respiratory distress and peritoneal adhesions. The estimated non toxic dose and estimated maximum dose without gross lesions at necropsy was 500 mg/kg body weight. | [Synthesis]
Methyl lactate is prepared by the esterification of methyl alcohol with lactic acid. | [Purification Methods]
Methyl lactate is easily hydrolyzed and often contains impurities such as free lactic acid, methanol and water. Free acid can be removed by washing after neutralization with alkali. Moisture can be removed by azeotropic distillation of an azeotropic mixture with benzene. Then, it was purified by distillation under reduced pressure. Since calcium chloride and the like form molecular compounds with methyl lactate, they cannot be used as desiccants. When the methyl lactate is mixed with water, it can be extracted and recovered with benzene, ether, etc. |
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