Xylenesulfonic Acid Mixture
Xylenesulfonic acid mixture contains isomers of dimethylbenzenesulfonic acid from sulfonation of commercial xylene feedstock. Falls under HTS 2904.99.50.00 as sulfonated derivatives not elsewhere specified. Used in hydrotropes and polymerization catalysts.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If chloroxylene sulfonic acids
Halogenation changes classification to earlier 2904.10 subheading.
If fatty acid sulfonates or soapstocks
Exclusions in chapter notes send certain sulfonated mixtures to Chapter 38.
If unsulfonated cyclic hydrocarbons predominate
Parent hydrocarbons without functional groups stay in 2902.
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Import Tips & Compliance
• Isomer distribution report essential; mixtures of isomers allowed per chapter note (b)
• pH adjustment documentation needed for wastewater discharge compliance
• Verify not classifiable as 'crude' under note exclusions leading to Chapter 28
Related Products under HTS 2904.99.50.00
p-Toluenesulfonic Acid
p-Toluenesulfonic acid (PTSA) is a sulfonated derivative of toluene, a hydrocarbon, containing a sulfonic acid group (-SO3H) attached to the aromatic ring. It falls under HTS 2904.99.50.00 as a sulfonated derivative of hydrocarbons, whether or not halogenated, specifically in the 'other' category. Commonly used as a catalyst in organic synthesis and esterification reactions.
Benzenesulfonic Acid
Benzenesulfonic acid is the simplest aromatic sulfonic acid, derived from benzene hydrocarbon through sulfonation. Classified under HTS 2904.99.50.00 as a sulfonated derivative of hydrocarbons in the 'other' subcategory. Used in manufacturing detergents, dyes, and pharmaceuticals.
Dinonylnaphthalenesulfonic Acid
Dinonylnaphthalenesulfonic acid (DNNSA) features two nonyl alkyl chains on sulfonated naphthalene, qualifying as alkylated sulfonated hydrocarbon derivative under HTS 2904.99.50.00. Widely used in alkylation catalysts and metal extraction.
Camphorsulfonic Acid
10-Camphorsulfonic acid derives from sulfonation of camphor (bicyclic hydrocarbon terpene). Classified HTS 2904.99.50.00 as sulfonated cyclic hydrocarbon derivative. Chiral resolving agent in asymmetric synthesis.
Anthracene-2-Sulfonic Acid
Anthracene-2-sulfonic acid from sulfonation of anthracene polycyclic hydrocarbon. HTS 2904.99.50.00 covers this higher PAH sulfonated derivative. Used in specialty dye synthesis.
Dodecylbenzenesulfonic Acid
Linear dodecylbenzenesulfonic acid (LABSA) from sulfonation of dodecylbenzene alkylaromatic hydrocarbon. HTS 2904.99.50.00 classification for long-chain sulfonated derivatives. Primary raw material for LAS detergents.