2915.70.01.20 - Stearic acid

This category encompasses stearic acid, a saturated acyclic monocarboxylic acid with the chemical formula CH₃(CH₂)₁₆COOH. It is a common fatty acid found in various animal and vegetable fats and oils, typically appearing as a white or slightly yellowish waxy solid. Stearic acid plays a significant role in numerous industrial applications, including the manufacturing of candles, soaps, cosmetics, lubricants, and as an additive in rubber and plastics. Its classification under this heading is based on its specific chemical structure as a saturated monocarboxylic acid.

Within the broader category of "Palmitic acid, stearic acid, their salts and esters," this specific subheading distinguishes stearic acid from its sibling, palmitic acid (2915.70.01.10). Palmitic acid, while also a saturated fatty acid, has a shorter carbon chain (16 carbons compared to stearic acid's 18 carbons). While both are waxy solids with similar industrial uses, the distinction in carbon chain length dictates their separate classification at this level. The "Other" category (2915.70.01.50) at this level is reserved for other specific salts and esters of palmitic and stearic acids not otherwise enumerated.

As this subheading represents a leaf node, there are no further subcategories. Classification at this level is definitive for pure stearic acid. When classifying, consider the primary chemical identity of the substance. Mixtures where stearic acid is a principal component, but not the sole defining characteristic, may fall under other headings. However, pure or substantially pure stearic acid, regardless of its physical form (e.g., flake, powder, or bead), will be classified here.