Stearic Acid

CAS number: 57-11-4

Molecular formula: C18H36O2

molecular weight: 284.48

Chemical structure:

Product nameStearic Acid
Shelf lifeTwo years
Inspection Standard  USP35
ItemsSpecificationsResults
DescriptionWhite or almost white, waxy, flaky crystals, white or almost white hard masses, or white or yellowish-white powderWhite powder
Freezing point53-59℃55.6℃
Identification-BAcid value: 194-212209.3
SolubilityPractically insoluble in water, soluble in ethanol(96 percent) and in light petroleum (50-75℃)Conform
Identification-AMeet the requirementsConform
AcidityMeet the requirementsConform
Iodine value (gI2/100g)≤4.00.12
Heavy Metals≤10 ppm<10 ppm
Residue on ignition≤0.1%0.02%
Stearic Acid40.0%-60.0%42.2%
Stearic Acid & Palmitic acid≥90.0%99.1%
ConclusionConform