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Stearic Acid Flakes Crystals Powder USP FCC Food Grade BP Ph Eur Grade Supplier, Manufacturer's Representative, CAS Number 57-11-4
FInOrIC, etymologically derived from our business line of Fine Inorganic, Organic and Industrial Chemicals, offers chemicals for Oil & Gas Exploration, Hydraulic Fracturing, Production, Stimulation, Coiled Tubing, Food & Feed Ingredients, Mineral Fortifiers and Pharmaceutical Excipients, in 55 countries across 5 continents. Backed by company owned & operated full-fledged chemical manufacturing facilities in Pleasanton, Midland & Houston, Texas with associated manufacturing sites in India, UAE and China we are a truly multi-national chemical manufacturer and distributor.
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For MSDS Sheet Click MSDS SDS of Stearic Acid Suppliers
CAS Number 57-11-4 Flakes Crystals Powder USP FCC Food Grade BP Ph Eur Grade Suppliers
Stearic Acid USP
CAS Number 57-11-4.
Stearic Acid is manufactured from fats and oils derived from edible sources and is a mixture of Stearic Acid (C18H36O2) and palmitic acid (C16H32O2). The content of C18H36O2 is not less than 40.0 percent, and the sum of the two is not less than 90.0 percent.
NOTE: Stearic Acid labeled solely for external use is exempt from the requirement that it be prepared from edible sources.
Iodine value: not more than 4.
Residue on ignition: not more than 4 mg, determined on a 4-g portion (0.1%).
Heavy metals: 0.001%.
Mineral acid: Shake 5 g of melted Stearic Acid with an equal volume of hot water for 2 minutes, cool, and filter: the filtrate is not reddened by the addition of 1 drop of methyl orange.
Neutral fat or paraffin: Add 1 g of Stearic Acid to 30 mL of anhydrous sodium carbonate solution (1 in 60) in a flask, and boil the mixture: the resulting solution, while hot, shows not more than a faint opalescence.
Organic volatile impurities: meets the requirements.
Stearic Acid FCC Food Grade
C18H36O2 Formula wt 284.48
CAS Number 57-11-4
Stearic Acid occurs as a hard, white or faintly yellow, somewhat glossy and crystalline solid or as a white or yellowwhite powder. It is a mixture of solid organic acids obtained from fats consisting chiefly of Stearic Acid (C18H36O2) and palmitic acid (C16H32O2). Stearic Acid is practically insoluble in water. One gram dissolves in about 20 mL of alcohol, in 2 mL of chloroform, and in about 3 mL of ether.
Function: Component in the manufacture of other foodgrade additives; lubricant; defoaming agent.
Acid Value: Between 196 and 211.
Iodine Value: Not more than 7.
Lead: Not more than 2 mg/kg.
Residue on Ignition: Not more than 0.1%.
Saponification Value: Between 197 and 212.
Titer (Solidification Point): Between 54.5° and 69°.
Unsaponifiable Matter: Not more than 1.5%.
Water: Not more than 0.2%.
Stearic Acid BP Ph Eur
Action and use: Excipient.
Mixture consisting mainly of stearic (octadecanoic) acid (C18H36O2; Mr 284.5) and palmitic (hexadecanoic) acid (C16H32O2; Mr 256.4) obtained from fats or oils of vegetable or animal origin.
Stearic acid 50: Stearic acid: 40% to 60%. Sum of contents of stearic and palmic acid minimum minimum 90%
Stearic acid 70: Stearic acid: 60% to 80%. Sum of contents of stearic and palmic acid minimum minimum 90%
Stearic acid 95: Stearic acid: >90%. Sum of contents of stearic and palmic acid minimum minimum 96%
Appearance: White or almost white, waxy, flaky crystals, white or almost white hard masses, or white or yellowish-white powder.
Solubility: Practically insoluble in water, soluble in ethanol (96 per cent) and in light petroleum (bp: 50-70 °C).
A. Freezing point (see Tests).
B. Acid value: 194 to 212, determined on 0.5 g.
C. Examine the chromatograms obtained in the assay.
Results The principal peaks in the chromatogram obtained with the test solution are similar in
retention time to those in the chromatogram obtained with the reference solution.
Appearance: Heat the substance to be examined to about 75 °C. The resulting liquid is not more intensely coloured than reference solution.
Acidity: Melt 5.0 g, shake for 2 min with 10 mL of hot carbon dioxide-free water, cool slowly and filter.
To the filtrate add 0.05 mL of methyl orange solution R. No red colour develops.
Stearic acid 50: I. V. = maximum 4
Stearic acid 70: I. V. = minimum 4
Stearic acid 95: I. V. = minimum 1.5
Stearic acid 50: 53-59
Stearic acid 70: 57-64
Stearic acid 95: 64-69
Nickel: Maximum 1 ppm.
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