Chapter 2842 — Customs Tariff Headings
Subheadings
Products classified under Tariff item 28.42
Beta Zeolite Powder
Beta zeolite powder is a synthetic aluminosilicate with a large-pore three-dimensional structure, used primarily in hydrocracking and dewaxing catalysts. As a chemically defined double or complex silicate, it falls under tariff item 2842.10.00.
2842.10.00Hydrated Aluminosilicate Catalyst
Hydrated aluminosilicate catalyst material is a chemically defined double silicate with specific Si/Al ratios, used in petroleum refining cracking processes. Its defined structure and composition qualify it for classification under tariff item 2842.10.00.
2842.10.00Linde Type A Zeolite
Linde Type A zeolite is a synthetic sodium aluminosilicate with a well-defined 4Å pore structure, commonly used in drying and purification applications. As a chemically defined double or complex silicate, it is classified under tariff item 2842.10.00.
2842.10.00Mordenite Aluminosilicate Powder
Mordenite aluminosilicate powder is a high-silica zeolite with a two-dimensional pore system, used in gas separation and purification. Its chemically defined complex silicate structure places it under tariff item 2842.10.00.
2842.10.00Silicalite-1 Aluminosilicate
Silicalite-1 is a pure silica zeolite with trace aluminum, forming hydrophobic membranes used in pervaporation and organic separations. As a chemically defined complex silicate, it falls under tariff item 2842.10.00.
2842.10.00Sodium Aluminosilicate Zeolite A
Sodium aluminosilicate Zeolite A is a synthetic compound used as a detergent builder and water softener. Its chemically defined double silicate structure qualifies it for tariff item 2842.10.00.
2842.10.00Synthetic Zeolite 4A Powder
Synthetic Zeolite 4A powder is a hydrated sodium calcium aluminosilicate used in molecular sieves and ion exchange. As a chemically defined double or complex aluminosilicate, it is classified under tariff item 2842.10.00.
2842.10.00Y-Type Faujasite Zeolite
Y-Type Faujasite zeolite is an ultrastable synthetic aluminosilicate used in fluid catalytic cracking. Its defined FAU framework structure and high silica content place it under tariff item 2842.10.00 as a chemically defined complex silicate.
2842.10.00ZSM-5 Zeolite Catalyst Base
ZSM-5 zeolite catalyst base is a medium-pore aluminosilicate with MFI framework topology, used in methanol-to-gasoline processes. As a chemically defined complex silicate, it falls under tariff item 2842.10.00.
2842.90.00Aluminum Peroxophosphate
Aluminum peroxophosphate is an inorganic salt of peroxophosphoric acid, used in flame retardants. It is a salt of a peroxoacid, classifiable under heading 28.42 as 'other salts of inorganic acids or peroxoacids'.
2842.90.00Ammonium Peroxosulfate
Ammonium peroxosulfate ((NH4)2S2O8) is an oxidizing salt used in etching and polymerization. It is a salt of peroxosulfuric acid, classifiable under heading 28.42 as an 'other salt of a peroxoacid'.
2842.90.00Ammonium Thiocyanate
Ammonium thiocyanate (NH4SCN) is an inorganic salt of thiocyanic acid, commonly used in fertilizers, photography, and steel pickling. It is a chemically defined compound of an inorganic base, classifiable under heading 28.42 as a thiocyanate.
2842.90.00Barium Thiocyanate
Barium thiocyanate (Ba(SCN)2) is an inorganic salt used as a corrosion inhibitor and in textile processing. It is a chemically defined thiocyanate of an inorganic base, falling under heading 28.42.
2842.90.00Cadmium Silicate
Cadmium silicate is an inorganic salt of silicic acid, used in phosphors and ceramics. It is classifiable under heading 28.42 as an 'other salt of an inorganic acid'.
2842.90.00Calcium Peroxocarbonate
Calcium peroxocarbonate is an inorganic salt of peroxocarbonic acid, used as an oxygen bleach and disinfectant. It is classifiable under heading 28.42 as an 'other salt of a peroxoacid', excluded from heading 28.36 per Chapter Note 2.
2842.90.00Calcium Thiocyanate
Calcium thiocyanate (Ca(SCN)2) is an inorganic salt used in concrete accelerators and de-icing products. It is a chemically defined thiocyanate of an inorganic base, classifiable under heading 28.42.
2842.90.00Lead Silicate Powder
Lead silicate powder is an inorganic salt of silicic acid, used in specialty glass and ceramics production. It is classifiable under heading 28.42 as an 'other salt of an inorganic acid'.
2842.90.00Mercury(II) Thiocyanate
Mercury(II) thiocyanate (Hg(SCN)2) is a chemically defined inorganic compound used in pyrotechnics and as a laboratory reagent. It is a thiocyanate of an inorganic base, falling under heading 28.42.
2842.90.00Potassium Cyanate
Potassium cyanate (KOCN) is a white crystalline compound used in organic synthesis and herbicide production. It is a cyanate of an inorganic base, classifiable under heading 28.42.
2842.90.00Potassium Thiocyanate
Potassium thiocyanate (KSCN) is a colorless crystalline salt used in dyes, pharmaceuticals, and frost prevention sprays. It is a chemically defined thiocyanate of an inorganic base, falling under heading 28.42.
2842.90.00Reineckate Salt (Ammonium Reineckate)
Ammonium reineckate is a complex thiocyanatochromate used in protein analysis. It is specifically named in Chapter Note 2(d) as classifiable in Chapter 28, under heading 28.42.
2842.90.00Silver Thiocyanate
Silver thiocyanate (AgSCN) is a white powder used in photography and as an analytical reagent. It is a chemically defined thiocyanate of an inorganic base, classifiable under heading 28.42.
2842.90.00Sodium Fulminate
Sodium fulminate (NaCNO) is an explosive compound used in detonators and percussion caps. It is a fulminate of an inorganic base, falling under heading 28.42 as per Chapter Note 2.
2842.90.00Sodium Thiocyanate
Sodium thiocyanate (NaSCN) is an inorganic salt of thiocyanic acid, used in chemical synthesis, photography, and as an analytical reagent. It is a chemically defined thiocyanate of an inorganic base, classifiable under heading 28.42.