Zinc Phosphide Powder
Chemically defined zinc phosphide (Zn3P2) used as rodenticide active ingredient or in semiconductors. Falls under HTS 2853.90.90 as other phosphides, inorganic compounds per heading scope excluding ferrophosphorous. Highly reactive with moisture, producing phosphine gas.
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More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If formulated as ready-to-use rodenticide bait
Pesticide goods of heading 38 fall in 3808 when put up for retail/pest control, not pure compounds.
If impure mixture with organic stabilizers
Organo-inorganic compounds or impure blends exclude to 3824 per Chapter Note 2(b).
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Import Tips & Compliance
• Obtain EPA registration for pesticide use; include toxicity data in import docs
• Ship under UN 1710 hazmat regulations with inert atmosphere packaging
• Confirm purity via assay to distinguish from mixtures classifiable in 3824
Related Products under HTS 2853.90.90
Copper Phosphide (Phosphor Copper)
Copper phosphide, containing more than 15% phosphorus by weight, used in metallurgy for deoxidizing and alloying. Classified under HTS 2853.90.90 as per Chapter Note 7, which explicitly includes it in heading 2853. It is an inorganic compound of phosphorus and copper, not chemically excluded.
Aluminum Phosphide Tablets
Tableted aluminum phosphide (AlP) for fumigation, generating phosphine gas. Classified in 2853.90.90 as chemically defined phosphide, inorganic compound under heading 2853. Excludes only ferrophosphorous per hierarchy.
Distilled Water USP Grade
Ultra-pure distilled water meeting USP standards for pharmaceutical use. HTS 2853.90.90 covers 'distilled or conductivity water and water of similar purity' explicitly. Free of ions, used in injections and labs.
Liquid Air (Synthetic)
Liquefied atmospheric air, rare gases not removed, used for cryogenic cooling. Falls under HTS 2853.90.90 as 'liquid air (whether or not rare gases have been removed)'. Inorganic compressed/liquefied gas mixture.
Dental Amalgam Alloy
Silver-tin-mercury amalgam powder for dental fillings, excluding precious metal amalgams. HTS 2853.90.90 includes 'amalgams, other than amalgams of precious metals'. Chemically defined alloy for restorative dentistry.
Conductivity Water ASTM Type I
ASTM Type I conductivity water with resistivity >18 MΩ·cm for semiconductor rinsing. Specifically named in 2853.90.90 as 'water of similar purity'. Ultra-pure for electronics manufacturing.