Detailed Propylene Glycol Description
Tech grade:
a) PG content: 99.00%min.
b) Moisture: 0.10%max.
c) Relative density d2020: 1.036 - 1.039 g / cm3
d) Relative Index: 1.430 - 1.434 nD20
e) Distillation range (IBP - ): 183 - 189'C
f) Color (Pt - ): 16
g) Appearance: colorless, viscose, transparent liquid
USP grade:
a) PG content: 99.50%min
b) Moisture: 0.05%max.
c) Density (20'): 1.037 - 1.039 g / cm3
d) Index of refraction: 1.430 - 1.434 nD20
e) Alkalinity (as OH - ): 0.04 mmol / 100g max.
f) Burning residues: 0.010 % max.
g) Distillation range (IBP - ): 186 - 189 'C
h) Color (Pt - ): 10
i) Sulfate (): 13ppm max.
j) Cl: 1ppm max.
k) As: 1ppm max.
l) Pb: 5ppm max.
m) Fe: 0.3ppm max.
n) Appearance: colorless, viscose, transparent liquid
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