Propylene Glycol USP CAS No. 57-55-6
Propylene Glycol USP Assay (C3H8O2): Min. 99.5%
Specific Gravity @ 25°C: 1.035-1.037
Propylene Glycol USP MAXIMUM LIMITS
Acidity: To pass test
Water: 0.2%
Residue on Ignition: 0.007%
Chloride (Cl): 0.007%
Sulfate (SO4): 0.006%
Heavy Metals (as Pb): 5 ppm
Organic Volatile Impurities: To pass test
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