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Sulphides of non-metals; commercial phosphorus trisulphide. > Other > Other
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Subheadings
Products classified under Tariff item 2813.90
Arsenic Disulfide Crystals
High-purity arsenic disulfide (As2S2) crystals grown for research in photoconductive materials and phase-change memory devices. This chemically defined sulfide of arsenic falls under tariff item 2813.90.00 as an 'other' sulfide of non-metals, meeting the criteria of Chapter 28 Note 1(a) for separate chemically defined compounds.
2813.90.00Arsenic Pentasulfide Flakes
Arsenic pentasulfide (As2S5) in flake form, a reactive arsenic sulfide used in organic synthesis and depilatory agents. As a chemically defined sulfide of arsenic, it is classified under tariff item 2813.90.00 as an 'other' sulfide of non-metals, consistent with Chapter 28 Note 1(a).
2813.90.00Arsenic Sulfide Glass Chunks
Chunks of arsenic sulfide-based glass (As2S3) used for molding into infrared lenses and windows. While chemically defined as arsenic trisulfide, the physical form as glass chunks may be considered a manufactured article rather than a basic chemical, but as a sulfide of a non-metal it falls under tariff item 2813.90.00.
2813.90.00Arsenic Trisulfide Powder
Arsenic trisulfide (As2S3) is a chemically defined sulfide of arsenic, appearing as a yellow-orange powder used in the production of semiconductors and infrared optical materials. It falls under tariff item 2813.90.00 as an 'other' sulfide of non-metals, meeting Chapter 28 Note 1(a) criteria.
2813.90.00Commercial Grade Phosphorus Sulfide 1314-85-2
Bulk commercial phosphorus trisulfide (CAS 1314-85-2) in 25kg drums for chemical manufacturing, distinguished by commercial impurities from analytical grades. Tariff item 2813.90.00 covers this as 'other' commercial phosphorus trisulfide.
2813.90.00Commercial Phosphorus Trisulfide
Commercial phosphorus trisulfide (P4S3) is a yellow-gray crystalline powder used primarily in the manufacture of safety match heads and as a lubricant additive. It falls under tariff item 2813.90.00 as a sulfide of phosphorus, specifically commercial phosphorus trisulphide.
2813.90.00Commercial Phosphorus Trisulfide Powder
Commercial phosphorus trisulfide (P4S3) is a red to yellow crystalline powder used primarily in the manufacture of safety match striking surfaces and as a reagent in organic synthesis. It is classified under tariff item 2813.90.00 as an 'other' sulfide of a non-metal, specifically commercial phosphorus trisulfide.
2813.90.00Diarsenic Trisulfide Nanomaterials
Nanoparticles of diarsenic trisulfide (As2S3) for applications in nonlinear optics and solar cells. Tariff item 2813.90.00 covers this chemically defined arsenic sulfide regardless of particle size, as long as purity meets Chapter 28 Note 1(a) requirements.
2813.90.00High Purity P4S3 for Organic Synthesis
High purity phosphorus trisulfide (P4S3) at 99% purity, supplied as crystals, is used as a thionating agent to convert carbonyls to thiocarbonyls in pharmaceutical intermediate synthesis. It is classified under tariff item 2813.90.00 as an 'other' sulfide of a non-metal, being commercial phosphorus trisulfide.
2813.90.00Industrial Phosphorus Sesquisulfide Granules
Industrial phosphorus sesquisulfide (P4S3) in granular form is used in pyrotechnics and smoke composition manufacturing due to its controlled oxidation properties. It is classified under tariff item 2813.90.00 as an 'other' sulfide of a non-metal, specifically commercial phosphorus trisulfide.
2813.90.00Industrial Phosphorus Trisulfide 99% Pure
99% pure industrial phosphorus trisulfide is a high-purity grade for chemical synthesis and lubricant production. It meets tariff item 2813.90.00 criteria as commercial phosphorus trisulfide, excluded from organic compounds per Chapter 28 Note 2.
2813.90.00P4S3 Match Production Grade
P4S3 specifically graded for safety match production, providing the controlled ignition properties needed. Classified in tariff item 2813.90.00 as the 'other' phosphorus sulfide, separate from pure elements or metal salts.
2813.90.00Phosphorus Sesquisulfide Flakes
Phosphorus sesquisulfide flakes, synonymous with P4S3, are supplied in flake form for match manufacturing and pyrotechnics. This product is specifically 'of phosphorus' under tariff item 2813.90.00, distinguishing it from carbon sulfides.
2813.90.00Phosphorus Sulfide P4S3 Drums
Bulk phosphorus sulfide (P4S3) packaged in 25kg drums for industrial distribution. Tariff item 2813.90.00 covers this as 'of phosphorus' commercial grade, not retail packaged, consistent with Chapter 28 Note 1.
2813.90.00Phosphorus Trisulfide for Match Industry
Red phosphorus trisulfide specifically formulated for safety match production provides controlled ignition on striking surfaces. It is classified under tariff item 2813.90.00 as an 'other' sulfide of a non-metal, being commercial phosphorus trisulfide.
2813.90.00Red Phosphorus Trisulfide Variant
Red amorphous phosphorus trisulfide variant used in specialty lubricants and flame retardants. Falls under tariff item 2813.90.00 as commercial phosphorus trisulfide of phosphorus, per subheading specificity.
2813.90.00Synthetic Orpiment Pigment (Arsenic Trisulfide)
Synthetic orpiment, chemically pure arsenic trisulfide (As2S3), used as a yellow pigment in artist's oils and restoration work. Falls under tariff item 2813.90.00 as a chemically defined sulfide of arsenic, not qualifying as a pigment of Chapter 32.
2813.90.00Synthetic Phosphorus Trisulfide Crystals
Laboratory-synthesized P4S3 crystals for research in inorganic chemistry. Still classified under tariff item 2813.90.00 as chemically defined nonmetal sulfide, regardless of the synthesis method.
2813.90.00Technical Grade P4S3 Flakes
Technical grade phosphorus sesquisulfide (P4S3) in flake form serves as a key intermediate in pesticide and lubricant additive production. It is classified under tariff item 2813.90.00 as an 'other' sulfide of a non-metal, specifically commercial phosphorus trisulfide.
2813.90.00Technical Grade P4S3 Powder
Technical grade phosphorus trisulfide (P4S3) powder is an industrial chemical for producing organic phosphorus compounds and as a reducing agent in metallurgy. Classified under tariff item 2813.90.00 as 'of phosphorus' in the subheading.