Propylene Glycol BP

Propylene glycol (propane-1,2-diol) is an organic compound with the chemical formula C3H8O2. It is a viscous, colorless liquid which is nearly odorless but possesses a faintly sweet taste. Containing two alcohol groups, it is classed as a diol. It is miscible with a broad range of solvents, including water, acetone, and chloroform.


Propylene glycol is used as a skin-conditioning agent-humectant. In alcohol-based hand sanitizers, it is used as a humectant to prevent the skin from drying.


Chemical Name: Propylene Glycol
Mol. Formula: C3H8O2
Mol. Weight:  76.1 g/mol
CAS no.: 57-55-6



Test Specification
Description It occurs as a viscous, clear, colourless, hygroscopic liquid

Test (A)

Test (B)




(a) It complies with the test for Relative Density

(b) It complies with the test for refractive index

(c) Boiling Point: 184 °C to 189 °C.

(d) Specified test.

Solubility Miscible with water and with ethanol (96%)
Appearance of solution The solution is clear and colorless
Relative density 1.035 to 1.040 gm/ml
Refractive index 1.431 to 1.433
Acidity Specified Test.
Oxidising substances Specified Test.
Reducing substances Specified Test. The solution does not change its appearance.
Heavy metals Not more than 5 ppm
Water Not more than 0.2%
Sulfated ash Not more than 0.01%


Shelf life, Storage and Packing

It should be stored in a segregated area in a cool and ventilated place away from combustible materials. Keep in a tightly closed container, sealed until ready for use. It is packed in 25kg or 50kg HDPE bags or drums as required.


GLP, cGMP (FDA) Approved, ISO 9001, ISO 14001, ISO 45001, ISO 17025, ISO 22000, FSSC 22000, FSSAI, Halal and Kosher certified.
We observe WHO Good manufacturing practice and Good laboratory practice.

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