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Propylene glycol USP/Ph.Eur 2.5LT
97400LC250339987105BU
USP/Ph.Eur3399871
57-55-671788
C3H8O2February 2021
76.1January 2024
Sr.No.TestResultSpecification
1DescriptionClear, colourless, viscous liquid having a slight, characteristic taste. Is practically odourless. Absorbs moisture when exposed to moist air.Clear, colourless, viscous liquid having a slight, characteristic taste. Is practically odourless. Absorbs moisture when exposed to moist air.
2SolubilityPassesMiscible with water, with ethanol (96%), with acetone, and with chloroform Soluble in ether and will dissolve many essential oils, but is immiscible with fixed oils.
3Identification (by IR)CompliesIR spectra of the sample should be concomitant with IR spectra of the standard
4Identification (Diethylene glycol)Not detectedNMT 0.10%
5Identification (Ethylene glycol)Not detectedNMT 0.10%
6Identification (By GC Chromatogram)CompliesThe retention time of the propylene glycol peak of the sample solution corresponds to that of the standard solution
7Identification (by Relative density, 20°C)1.0371.035 - 1.040
8Identification (By Refractive index, 20±0.5°C)1.4321.431 - 1.433
9Identification (By Boiling Point)187°C184° - 189°C
10Identification (By Melting point)122°CCrystals should melt between 121 °C to 128 °C.
11Specific gravity, 25°C1.0361.035 - 1.037
12Relative density, 20°C1.0371.035 - 1.040
13Refractive index (20°C ± 0.5°C)1.4321.431 - 1.433
14Assay99.97%NLT 99.5%
15Residue on ignition0.002%The weight of the residue is NMT 3.5 mg (0.007% max)
16Chloride (Cl)Less than 70ppm70ppm max
17Sulphate (SO4)Less than 60ppm60ppm max
18Acidity0.03 mL of 0.1 M sodium hydoxideNot more than 0.05 mL of 0.1 M sodium hydroxide should require to change the colour of the indicator to blue.
19Oxidising substancesCompliesNot more than 0.2 mL of 0.05 M sodium thiosulfate should require.
20Reducing substancesCompliesThe solution should not change its appearance.
21Water0.03%NMT 0.2%
Remarks: THE CAPTIONED MATERIAL COMPLIES WITH THE PRESCRIBED QUALITY OF USP AND PH.EUR SPECIFICATION.
FINAR provides this analytical report in good faith and to the best of its knowledge. It should not be substituted for the users own raw material quality control.
Tested By
(Chemist - Quality Control)
Approved By
(Head - Quality Control)
Computer Generated Report - Does not require Signature.
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