Ultrawhite Calcium Carbonate 2.5 Micron
High-brightness (98%+) calcium carbonate with controlled 2.5 micron PSD for premium paper coatings, under HTS 2836.50.00.00. Provides gloss and opacity in inkjet media.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If made into newsprint base stock
Paper containing >50% fillers becomes paper product Chapter 48.
If complex sodium silico-carbonate
Zeolite/silicate combinations for detergents use different subheadings.
If inorganic color lake preparation
Coloring matter preparations shift to Chapter 32.
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Import Tips & Compliance
• Include ISO 11475 brightness (>96%) and ISO 5457 opacity certifications
• Validate rheology for coating applications per TAPPI standards
• Use anti-settling agents in shipping to maintain suspension stability
Related Products under HTS 2836.50.00.00
Precipitated Calcium Carbonate (PCC)
Precipitated calcium carbonate is a fine, white powder produced by chemical precipitation from calcium hydroxide and carbon dioxide, classified under HTS 2836.50.00.00 as chemically defined calcium carbonate. It is widely used as a filler in paper, plastics, and paints to enhance brightness and opacity.
Ground Calcium Carbonate (GCC) Powder
Ground calcium carbonate is a micronized powder derived from high-purity limestone, meeting the definition of calcium carbonate under HTS 2836.50.00.00 when chemically processed. Used in pharmaceuticals, food supplements, and as an antacid.
Nano Calcium Carbonate
Nano-sized calcium carbonate particles (1-100 nm) produced via precipitation for high-performance applications, classified as calcium carbonate under HTS 2836.50.00.00. Used in tire rubber reinforcement, coatings, and advanced composites.
Pharmaceutical Grade Calcium Carbonate USP
USP-grade calcium carbonate meeting pharmacopeia standards for purity and microbial limits, classified under HTS 2836.50.00.00 as chemically defined compound. Primary ingredient in antacids like Tums and calcium supplements.
Food Grade Calcium Carbonate E170
E170 food additive calcium carbonate used as acidity regulator, anticaking agent, and nutrient source, classified under HTS 2836.50.00.00. Meets FCC standards for direct food contact applications.
Calcium Carbonate Filler Masterbatch
Masterbatch containing 70-80% calcium carbonate dispersed in polymer carrier, but classified under HTS 2836.50.00.00 when imported as chemical concentrate. Used for plastics compounding to reduce costs.