Food safety and quality
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Flavouring |
Stearic acid |
Synonym(s) |
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Latest JECFA evaluation |
2002 (Session 59) |
Status of specification |
Full |
Information required |
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Chemical name |
Octadecanoic acid |
JECFA number |
116 |
CAS number |
57-11-4 |
FEMA number |
3035 |
COE number |
15 |
FLAVIS number |
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Molecular weight |
284.48 |
Chemical formula |
C18H36O2 |
Physical form/odour |
hard, white or faintly yellowish crystalline solid/tallow odour |
Solubility |
practically insoluble in water; soluble in alcohol, ether, chloroform |
Solubility in ethanol |
1 g in 20 ml alcohol |
Boiling point (°C) |
NA |
Assay min % |
40% (90% total stearic + palmitic acids) |
Acid value max |
196-211 |
Refractive index |
NA |
Specific gravity |
NA |
Other requirements |
mp: 64° (minimum); Saponification Value: 197 to 212; Unsaponifiable Matter: < 1.5%; Water: < 0.2%SC: Palmitic acid; Myristic acid; 9-Octadecenoic acid; Heptadecanoic acid; Eicosanoic acid; Pentadecanoic acid |
ID Test |
IR |
Spectrum |
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