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Propylene Glycol

Test Specification...BP
Description It occurs as a viscous, clear, colourless, hygroscopic liquid
Identification Test (A) Test (B) Test(C) Test(D) (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%
Test Specification...FCC
Characters It occurs as a clear, colorless, viscous liquid
Identification Test (A) a) Infrared Absorption
Solubility It is miscible with water, with acetone, and with chloroform in all proportions. It is soluble in ether and will dissolve many essential oils but is immiscible with fixed oils.
Specific Gravity Between 1.035 and 1.037
Acidity Specified Test.
Lead Not more than 1 mg/kg
Water Not more than 0.2%
Residue on ignition Not more than 0.007%
Distillation Range Between 185O and 189O
Assay Not less than 99.5% of C3H8O2
Test Specification...USP
Characters It occurs as a clear, colorless, viscous liquid having a slight, characteristic taste
Identification Test (A) Test (B) Test (C) a) Infrared Absorption b) Test limit for Diethylene glycol (NMT 0.10%) & Ethylene glycol (NMT 0.10%) c) Examine the Chromatograms
Solubility Miscible with water, acetone and with chloroform. Soluble in ether and will dissolve many essentials oils but is immiscible with fixed oils.
Specific Gravity Between 1.035 and 1.037
Acidity Specified Test. Not more than 0.20 mL of 0.10 N sodium hydroxide
Water determination Not more than 0.2%
Residue on ignition Specified Test. The weight of the residue does not exceed 3.5 mg
Chloride Not more than 70 ppm
Sulfate Not more than 60 ppm
Residual Solvents Meets the requirements
Assay Not less than 99.5% of C3H8O2

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.

Other
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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