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Lithium Tungstate Crystals

Lithium tungstate (Li2WO4) crystals serve in nonlinear optics and as flux in metallurgy, falling under HTS 2841.80.0050 as other tungstates. Classified here as unworked chemical compound per electronics doping note.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China5.5%+25.0%30.5%
🇲🇽Mexico5.5%—5.5%
🇨🇦Canada5.5%—5.5%
🇩🇪Germany5.5%—5.5%
🇯🇵Japan5.5%—5.5%

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

3818.00.00Higher: 50% vs 30.5%

If silicon/selenium doped wafers

Doped elements cut into wafers classify in 3818.

2849.90.50.00Higher: 38.7% vs 30.5%

If carbide impurity > principal

Carbides have dedicated heading 2849.

3824.99Lower: 15% vs 30.5%

If in retail lab kit

Retail chemical preps to 3824.

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Import Tips & Compliance

• Specify if doped for electronics; cut wafers shift to 3818

• Include origin certificate for critical mineral scrutiny

• Differentiate from lithium carbonate (2836) in assays

Related Products under HTS 2841.80.00.50

Sodium Tungstate Dihydrate

Sodium tungstate dihydrate (Na2WO4·2H2O) is a white crystalline salt derived from tungstic acid, classified under HTS 2841.80.0050 as an 'other' tungstate (wolframate) salt of a peroxometallic or oxometallic acid. It is commonly used in the production of tungsten metal and as a reagent in chemical synthesis.

Ammonium Paratungstate

Ammonium paratungstate ((NH4)10[H2W12O42]·4H2O) is a key intermediate salt in tungsten processing, fitting HTS 2841.80.0050 as an 'other' tungstate salt. It is thermally decomposed to produce tungsten oxide for further metal refinement.

Potassium Tungstate

Potassium tungstate (K2WO4) is an inorganic salt of tungstic acid used in fireproofing textiles and as a catalyst precursor, classified in HTS 2841.80.0050 as other tungstates. It meets Chapter 28 criteria for chemically defined metal salts.

Calcium Tungstate Powder

Calcium tungstate (CaWO4) powder is a tungstate salt used in fluorescent materials and X-ray screens, under HTS 2841.80.0050 for other tungstates. It qualifies as a chemically defined inorganic compound per Chapter notes.

Magnesium Tungstate

Magnesium tungstate (MgWO4) is a crystalline salt employed in scintillation detectors and phosphors, classified as other tungstates in HTS 2841.80.0050. It is a simple oxometallic salt excluded from other chapters.

Barium Tungstate

Barium tungstate (BaWO4) is used in X-ray contrast and ceramics, classified in HTS 2841.80.0050 for other tungstate salts. It adheres to definitions for metal tungstates excluding complex forms.