Ammonium Fluoride
Ammonium fluoride (NH4F) is a white crystalline salt used in chemical synthesis, glass etching, and as a fluorine source in pharmaceuticals. It falls under HTS 2826.19.1000 as an ammonium fluoride, classified within complex fluorine salts of Chapter 28. This chemically defined inorganic compound meets the chapter's criteria for fluorides other than those specified elsewhere.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If derived from rare-earth metals or yttrium
Fluorides of rare-earth elements shift to specific subheading 2826.12, distinct from ammonium salts.
If used as luminophore or phosphor in retail packaging
Chapter note excludes inorganic luminophores, directing them to heading 3206 if prepared for such use.
If mixed with ammonium fertilizers
Note 3 to Chapter 31 excludes certain Chapter 28 products when incorporated into fertilizers.
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Import Tips & Compliance
• Verify purity and chemical composition via lab certification to confirm classification as chemically defined under Chapter 28 Note 1
• Include Safety Data Sheets (SDS) and proper hazardous material declarations, as it's corrosive and requires UN-approved packaging
• Avoid misclassification as organo-fluorine compounds; ensure no organic substituents to stay in inorganic heading 2826
Related Products under HTS 2826.19.10.00
Ammonium Bifluoride
Ammonium bifluoride ((NH4)HF2) is an inorganic acid salt applied in industrial cleaning, oil well acidizing, and metal pickling. Classified under HTS 2826.19.1000 as an 'other' ammonium fluoride complex. It qualifies as a chemically defined fluorine salt per Chapter 28 definitions, excluding organic derivatives.
Ammonium Fluorosilicate
Ammonium fluorosilicate ((NH4)2SiF6) serves as a rodenticide, water fluoridation agent, and in ceramic production. It is a complex fluorine salt classified in HTS 2826.19.1000 under 'other' fluorides of ammonium. Meets subheading note for chemically defined compounds.
Ammonium Fluorotitanate
Ammonium hexafluorotitanate ((NH4)2TiF6) acts as a catalyst in organic synthesis and titanium processing. Classified in HTS 2826.19.1000 as other ammonium fluorides. Complex fluorine salt meeting chapter chemical definition requirements.
Ammonium Fluorozirconate
Ammonium fluorozirconate ((NH4)2ZrF6) finds use in ceramics, nuclear fuel processing, and as a precipitant. Under HTS 2826.19.1000 for ammonium 'other' fluorides. Inorganic complex salt per subheading note.
Ammonium Fluoborate
Ammonium fluoborate (NH4BF4) is utilized in electroplating baths, explosives, and synthetic resins. Falls under HTS 2826.19.1000 as an ammonium fluoride complex. Chemically defined per Chapter 28/29 notes, distinct from organo-inorganics.
Ammonium Difluoride
Ammonium difluoride (NH4HF2 variant) used in beaker cleaning and synthetic fluoride production. HTS 2826.19.1000 classifies it as ammonium fluoride. Chemically defined simple fluoride salt.