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Prepared at the 17th JECFA (1973), published in FNP 4 (1978) and in FNP 52 (1992) |
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SYNONYMS |
INS No. 495 |
DEFINITION |
A mixture of the partial esters of sorbitol and its mono- and dianhydrides with edible commercial palmitic acid |
C.A.S. number |
26266-57-9 |
Structural formula |
Contains palmitic acid esterified with polyols derived from sorbitol including the following types:
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Assay |
Saponification of 100 g of the sample yields approximately 37 g of polyols and 65 g of fatty acid. The polyol content shall be approximately 95% of a mixture of sorbitol, 1,4-sorbitan and isosorbide |
DESCRIPTION |
Light cream to tan beads or flakes or hard, waxy solid with a characteristic odour |
FUNCTIONAL USES |
Emulsifier |
CHARACTERISTICS | |
IDENTIFICATION | |
Solubility |
Soluble at temperatures above its melting point in ethanol, methanol, ether, ethylacetate, aniline, toluene, dioxane, petroleum ether and carbon tetrachloride; insoluble in cold water but dispersible in warm water. |
Congealing range |
45 - 47o |
Infrared absorption |
The infrared spectrum of the sample is characteristic of a partial fatty acid ester of a polyol |
PURITY | |
Water |
Not more than 1.5% (Karl Fischer Method) |
Acid value |
Not less than 4.0 and not more than 7.5 |
Saponification value |
Not less than 140 and not more than 150 |
Hydroxyl value |
Not less than 270 and not more than 305 |
Arsenic |
Not more than 3 mg/kg (Method II) |
Heavy metals |
Not more than 10 mg/kg Test 2 g of the sample as directed in the Limit Test (Method II) |
METHOD OF ASSAY |
Proceed as directed under the Sorbitan Ester Content. |