Potassium Nitrite Powder
Potassium nitrite (KNO2) is a yellowish-white powder serving as an oxidizing agent in heat-transfer salts and a reagent in analytical chemistry. Classified under HTS 2834.10.5000 as an 'other' nitrite of potassium, it meets the 'chemically defined' criteria without organic components or exclusions listed in Chapter 28 notes. Used in industrial applications like metal treatment.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If in complex salt form like double nitrite salts
Double or complex salts of inorganic bases including nitrites are directed to heading 2842 by Chapter notes.
If converted to the nitrate form during processing
Nitrates (not nitrites) of inorganic bases like potassium fall under heading 2835.
If doped for electronic applications in unworked rod form
Doped chemical elements or compounds for electronics remain in Chapter 28, but specific forms may shift to 3811 per notes.
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Import Tips & Compliance
• Provide assay certificates showing minimum 99% purity to avoid reclassification as mixtures; declare as hazardous under UN 1488
• Watch for contamination that could trigger organo-inorganic exclusion to Chapter 29
• Label clearly for DOT transport compliance
Related Products under HTS 2834.10.50.00
Sodium Nitrite Industrial Grade
Sodium nitrite (NaNO2) is a white to slightly yellow crystalline powder used primarily in the chemical industry for producing diazo dyes, nitroso compounds, and as a corrosion inhibitor. It falls under HTS 2834.10.5000 as an 'other' inorganic nitrite of sodium, chemically defined per Chapter 28 notes, excluding those covered by other specific headings. This classification applies to bulk industrial forms not meeting exclusions like organo-inorganic compounds.
Calcium Nitrite Corrosion Inhibitor
Calcium nitrite (Ca(NO2)2) solution or powder acts as a corrosion inhibitor for reinforced concrete, preventing steel rebar rust. It is classified in HTS 2834.10.5000 as an 'other' inorganic nitrite, chemically pure and not excluded as a Chapter 31 product or organo-compound. Primarily used in construction chemicals.
Silver Nitrite Analytical Reagent
Silver nitrite (AgNO2) is a fine powder used as a reagent in organic synthesis and analytical labs for nitrate testing. Under HTS 2834.10.5000 as 'other' nitrites, it qualifies as chemically defined without precious metal exclusions since it's a compound, not pure metal (per Chapter 28 note 6(f)). High-purity lab grade.
Barium Nitrite Crystals
Barium nitrite (Ba(NO2)2) crystals are used in pyrotechnics and as intermediates in barium salt production. Classified HTS 2834.10.5000 for 'other' nitrites, pure inorganic form per Chapter definitions, not a complex salt or excluded product. Industrial chemical applications.
Ammonium Nitrite Stabilized
Ammonium nitrite (NH4NO2), stabilized to prevent decomposition, is used in gas-generating systems and lab applications. Falls under HTS 2834.10.5000 as 'other' nitrites including ammonium salts per heading 2826-2842 note, provided stabilization is inorganic. Excludes organic-stabilized forms in 2831.
Lithium Nitrite Solution 50%
50% aqueous lithium nitrite (LiNO2) solution serves as a heat transfer fluid additive and de-icing component. HTS 2834.10.5000 covers it as 'other' nitrite if chemically defined, but watch for mixture status; pure compound basis. Industrial fluid applications.