| The merchandise covered by this order is all grades of sulfanilic acid, which include technical (or crude) sulfanilic acid, refined (or purified) sulfanilic acid and sodium salt of sulfanilic acid (sodium sulfanilate). |
Sulfanilic acid is a synthetic organic chemical produced from the direct sulfonation of aniline with sulfuric acid. Sulfanilic acid is used a a raw material in the production of optical brighteners, food colors, specialty dyes, and concrete additive. The principal differences between the grades are the undesirable quantities of residual aniline and alkali insoluble materials present in the sulfanilic acid. All grades are available as dry free flowing powders.
Technical sulfanilic acid contains 96 percent minimum sulfanilic acid, 1.0 percent maximum aniline, and 1.0 percent maximum alkali insoluble materials. Refined sulfanilic acid contains 98 percent minimum sulfanilic acid, 0.5 percent maximum aniline, and 0.25 percent maximum alkali insoluble materials. Sodium salt of sulfanilic acid (sodium sulfanilate) is a granular or crystalline material containing 75 percent minimum sulfanilic acid, 0.5 percent maximum aniline, and 0.25 percent maximum alkali insoluble materials based on the equivalent sulfanilic acid content.
In response to a request from 3V Corporation, on May 5, 2999, the Department clarified that sodium sulfanilate processed in Italy from sulfanilic acid produced in India is within the scope of the AD and CVD orders on sulfanilic acid from India. See Notice of Scope Rulings, 65 FR 41957 (July 7, 2000).
The merchandise is currently classifiable under Harmonized Tariff Schedule of the United States (“HTSUS”) subheadings 2921.42.22 and 29220.127.116.11. Although the HTSUS subheadings are provided for convenience and customs purposes, our written description of the scope of the order is dispositive.