39PROPG-D_TDS.pdf

Technical Data Sheet
Dow Propylene Glycol USP/EP
General Propylene Glycol USP/EP (PG USP/EP), referring to the United States and European
Description Pharmacopoeias, is a high-purity grade of monopropylene glycol for use in pharmaceutical,
food, cosmetic, personal care, flavor and fragrance, plus a variety of other applications.
The clear, colorless, practically odorless, slightly viscous, water-soluble and hygroscopic
liquid with low vapor pressure is produced and handled in compliance with current Good
Manufacturing Practice (CGMP) guidelines.
PG USPIEP is tested for compliance with the current USP, EP, and Japanese
Pharmacopoeia (JP) specifications plus the Food Chemical Codex (FCC); it also complies
with the Brazilian Pharmacopoeia, and other pharmaceutical, cosmetic and food regulations
in the global markets where it is sold. It is listed by the Cosmetic, Toiletry and Fragrance
Association as an approved ingredient in cosmetics and its use is reviewed by the Cosmetic
Ingredient Review (CIR). PG USP/EP is Kosher certified and complies with Halal
requirements.
Typical Chemical Name 1,2-Propanediol
Component Formula CH,-CH(OH)-CH,OH; C,H,0,,
Properties Molecular Weight (g/mol) 76.10
CAS Number 57-55-6
EINECS Number 200-338-0
Assay > 99.8% by weight
Water < 0.2% by weight Boiling Point, 101.3 kPa (1 atm) 187 C (369 F) Distillation Range, 101.3 kPa (1 atm) 186-189 C (367 F-372 F) Vapor Pressure, 20 C (68 F) 0.011 kPa (0.08 mm Hg) 25 C (77 F) 0.017 kPa (0.13 mm Hg) Freezing Point Super cools Pour Point <-57 C (-71 F) Specific Gravity 20/20 C (68/68 F) 1.038 25/4 C (77/39 F) 1.033 60/4 C (140/39 F) 1.007 Refractive Index n20/D, 20 C (68 F) 1.4310-1.4330 Viscosity, 25 C (77 F) 48.6 centipoise (mPa.s) 60 C (140 F) 8.4 centipoise (mPa.s) Specific Heat, 25 C (77 F) 2.51 Jig?K Surface Tension, 25 C (77 F) 36 mN/m Flash Point, Pensky-Martens Closed Cup 104 C (220 F) Autoignition Temperature 371 C (700 F) Thermal Conductivity, 25 C (77 F) 0.2061 Wim?K Electrical Conductivity, 25 C (77 F) 10 micro Sim Heat of Formation 422 kJ/mol (-101 Keal/g-mol) Heat of Vaporization, 25 C (77 F) 67.0 kJ/mol 1. These are typical values and should not be construed as specifications. Page 1 of 3 Trademark of The Dow Chemical Company ( Dow ) or an affilated company of Dow Form No. 117-20801-05/16 Propylene Glycol USPIEP