3-METHOXY-1-PROPANOL

PRODUCT IDENTIFICATION

CAS NO. 1320-67-8 or 1589-49-7

3-METHOXY-1-PROPANOL

EINECS NO. 215-306-1
FORMULA CH3CH(OCH3)C3H6OH
MOL WT. 90.12
H.S. CODE

 

TOXICITY

 
SYNONYMS 1,2-Propanediol, monomethyl ether; Methoxypropanol;
Propylen glykol methyl ether; 3-Methoxypropanol; beta-PGME; Propylene glycol monomethyl ether, beta; Methyl ether of propylene glycol; Metoxipropanol (Spanish); Méthoxypropanol (French);

SMILES

 

CLASSIFICATION

 

PHYSICAL AND CHEMICAL PROPERTIES

PHYSICAL STATE clear liquid
MELTING POINT  
BOILING POINT 148 - 150 C
SPECIFIC GRAVITY 0.94 - 0.945
SOLUBILITY IN WATER

Soluble

pH

 

VAPOR DENSITY  
AUTOIGNITION

 

NFPA RATINGS Health: 1; Flammability: 2; Reactivity: 0

REFRACTIVE INDEX

1.413
FLASH POINT

65 C

STABILITY Stable under ordinary conditions

APPLICATIONS

Glycol: any of a class of organic chemicals characterized by having separate two hydroxyl (-OH) groups, contribute to high water solubility, hygroscopicity and reactivity with many organic compounds, on usually linear and aliphatic carbon chain. The general formula is CnH2n(OH)2 or (CH2)n(OH)2. The wider meaning names include diols, dihydric alcohols, and dihydroxy alcohols. Polyethylene glycols and polypropylene glycols are sometimes called polyglycols which are derived by polymerization of ethylene oxide and propylene oxide respectively. Polyethylene glycols are water-soluble at all molecular weights, but polypropylene glycols become increasingly less water-soluble at high molecular weights. Mono-, di- and tripropylene glycol, the first three members of a homologous series of propylene glycol, are completely water and ethanol soluble; miscible with most organic solvents including acetone, chloroform and some essential oils; soluble in 12 parts of ether. Propylene glycol is an odorless and colorless liquid; boiling point 188 C, freezing point -39 C. Propylene glycol is prepared by hydrolysis of propylene oxide. Large amount of propylene glycol is used in the plastics industry for the manufacture of polyester fibers and alkyd resins. It is used as a main ingredient in automobile antifreeze and engine-cooling liquids and in brake and hydraulic fluids due to its useful properties of low freezing point, involatility and low corrosive activity. It is used in the preparation of body-care surfactants. Propylene glycol is replacing ethylene glycol and ethanol as it is less toxic than ethylene glycol. Propylene glycol  is described as a "generally recognized as safe for use in food, cosmetics, and medicines" by FDA.  Propylene glycol USP grade is used as a non-toxic antifreeze in breweries and dairies. It is used as a humectant in foods and cosmetics. It is used as a solvent for colouring or flavouring agents as well as in many oral, injectable or topical pharmaceuticals. Its antibacterial property is applied in the preparation of sanitizing lotions.

Methoxypropanol's application is similar with propylene glycol as a low volatile solvent, but better dissolving is expected. Methoxypropanol is used to improve dissolving power, drying time, and flow. It is also known to be used as an intermediate for the synthesis of proton pump inhibitor (Rabeprazole Sodium).

SALES SPECIFICATION

APPEARANCE

clear liquid

ASSAY

99.0% min

COLOR, APHA

20 max

WATER

0.2% max

TRANSPORTATION
PACKING 180kgs in drum
HAZARD CLASS 3 (Packing group: III)
UN NO. 1987
OTHER INFORMATION
Hazard Symbols: XI, Risk Phrases: 10-38, Safety Phrases: 16-37