Light Burnt Magnesite for Water Treatment
Caustic calcined magnesite used for pH adjustment and magnesium fortification in municipal water systems. Synonymous with 'light burnt' magnesite under HTS 2519.90.20.00 for reactive MgO applications.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If dissolved and precipitated as antimony-free Mg compounds
Purified chemical antimony compounds classify in Chapter 28.
If impregnated with disinfectants for water purification cartridges
Pesticide/disinfectant preparations containing minerals go to Chapter 38.
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Import Tips & Compliance
• NSF/ANSI 60 certification often required for drinking water applications
• Solubility testing data (>90% available MgO) confirms reactivity grade
• Dissolution rate specs critical for water treatment dosing
Related Products under HTS 2519.90.20.00
Caustic Calcined Magnesite Powder
Fine powder produced by calcining natural magnesite at moderate temperatures to yield reactive magnesium oxide with some residual CO2. Classified under HTS 2519.90.20.00 as caustic calcined magnesite, distinct from dead-burned or fused magnesia due to its lower sintering temperature and higher reactivity.
Reactive Caustic Magnesite 90% MgO
Lightly calcined magnesite powder with 90% MgO content, used primarily in fertilizer production and acid neutralization. Falls under HTS 2519.90.20.00 because it's produced from natural magnesite via caustic calcination, retaining reactivity characteristics.
Greek Caustic Calcined Magnesite Lumps
Lump form caustic calcined magnesite from Grecian deposits, partially calcined for steelmaking slag conditioning. HTS 2519.90.20.00 applies as it's 'other' magnesium oxide from natural magnesite via caustic process, not fused or fully sintered.
Turkish CCM Grade A Caustic Magnesite
Premium Turkish caustic calcined magnesite meeting CCM Grade A specs for rubber and plastics reinforcement. Classified HTS 2519.90.20.00 due to production via controlled low-temperature calcination of high-purity magnesite.
High Reactivity Caustic Magnesite for Animal Feed
Specially calcined magnesite providing bioavailable magnesium for livestock supplements. HTS 2519.90.20.00 because it's caustic calcined natural magnesite meeting feed-grade purity without pharmaceutical processing.
Caustic Calcined Magnesite 85/15 (MgO/SiO2)
85% MgO / 15% SiO2 caustic calcined blend for basic refractory brick production. Specific HTS 2519.90.20.00 classification as 'caustic calcined magnesite' despite silica content typical for refractory formulations.