Propylene Glycol 20% Technical Grade

Certificate #: TYP-PROPYLENEGLY
Lot Number: TYPICAL SAMPLE
Test Date: 2026-07-17
Category: Alcohols & Glycols (B)
CAS Number: 57-55-6
Formula: C3H8O2
Computed Assay: 21.00%(100 − Σ impurities)

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Sample COA. Lot-specific COAs ship with each order.

2D chemical structure of Propylene Glycol 20% Technical Grade — Structure · PubChem

Last reviewed 2026-05-20.

COA · Answer summary

Typical certificate of analysis for Propylene Glycol 20% Technical Grade. Lot-specific results ship with every order.

Assay (computed): 21.00%

Specifications

Parameter	Specification	Typical Result	Test Method
Assay (GC)	19.5 – 20.5 %	21 %	GC
Acidity (as acetic)	≤ 50 ppm	10 ppm	Titration
Chlorides (as Cl)	≤ 0.1 ppm	0.03 ppm	ICP
Color (APHA)	≤ 10 APHA	2 APHA	APHA
Specific Gravity @20°C	1.002 – 1.012 g/mL	1.007 g/mL	Hydrometer @ 25°C

Generated 2026-07-17. Published by Alliance Chemical from first-party canonical product data. Our authority is hands-on chemical handling, DOT/GHS-compliant shipping, and government-registered distribution — not bench chemistry. Values are representative of typical production lots and reflect the published specification range. Lot-specific COAs are provided with every shipment.