Monopropylene Glycol

Synonym(s)

: Propylene glycol, 1,2-propanediol, propane-1,2-diol

Mol. Formula

: C3H8O2

EC / List no.

: 200-338-0

CAS no.

: 57-55-6

Molecular weight

: 76,09

Propylene glycol is a synthetic liquid substance that absorbs water. Propylene glycol is also used to make polyester compounds and as a base for deicing solutions. Propylene glycol is used by the chemical, food and pharmaceutical industries as an antifreeze where leaching could lead to food contact.

Application

» Used in adhesives and sealants, agricultural products (non-pesticides), air care products, antifreeze and defrosting products.
» The compound is used for joining arts, crafts and hobby supplies, automotive care products, solder paste, carbon and stainless steel components.
» It is used in building/construction materials, cleaning and upholstery care products, oil field corrosion and lime inhibitors, electrical and electronic products, fabric, textile and leather products and food packaging.
» It is used in golf and sports turf, ink, toner and coloring products, laundry and dishwashing products, lubricants and greases.

Product Specifications

Physical and Chemical Properties
» Monopropylene glycol appears as a colorless viscous liquid.
» It is odorless and tasteless.

Properties

Characteristics	Unit	Value	Condition
Melting point	°C	-60
Boiling point	°C	187.6
Flash point	°C	104	Closed cup
Density	g/cm3	1.04	20 °C
Solubility	g/ L	100	20 °C, soluble with water
Vapor pressure	mm Hg	0.13	25 °C
LogP		-0.92
Autoignition temperature	°C	371
Viscosity	cP	0.581	20 °C
Refractive index		1.431
pKa		14.9