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HS Code 28421000 - Double silicates of acids
Double or complex silicates of inorganic acids or peroxoacids, incl. aluminosilicates whether or not chemically defined (excl. inorganic or organic compounds of mercury whether or not chemically defined)
Examples (No official information or warranty)
- Sodium metasilicate (Na2SiO3) with a SiO2 content of 25.5% and a Na2O content of 14.2% for use as a detergent builder
- Calcium magnesium aluminosilicate with a molecular formula of CaMgAl(SiO3)2(OH)2·2H2O and a bulk density of 0.35 g/cm³
- Potassium lithium aluminum silicate with a particle size range of 1-10 μm and a purity of 98.5%
- Barium aluminum silicate with a specific gravity of 3.3 g/cm³ and a refractive index of 1.55
- Strontium aluminum silicate with a molecular weight of 288.15 g/mol and a melting point of 1250°C
- Zinc aluminum silicate with a Mohs hardness of 5.5 and a crystal system of monoclinic
- Lithium aluminum silicate with a thermal conductivity of 1.25 W/m·K and a coefficient of thermal expansion of 10.5 μm/m·K
- Calcium magnesium aluminosilicate with a molecular formula of CaMgAl(SiO3)2(OH)2·2H2O and a bulk density of 0.35 g/cm³
- Potassium lithium aluminum silicate with a particle size range of 1-10 μm and a purity of 98.5%
- Barium aluminum silicate with a specific gravity of 3.3 g/cm³ and a refractive index of 1.55
- Strontium aluminum silicate with a molecular weight of 288.15 g/mol and a melting point of 1250°C
- Zinc aluminum silicate with a Mohs hardness of 5.5 and a crystal system of monoclinic
- Lithium aluminum silicate with a thermal conductivity of 1.25 W/m·K and a coefficient of thermal expansion of 10.5 μm/m·K
Code Tree Structure / Hierarchy
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Trade restrictions and policies
Chapter 28
49 Trade restrictions and policies
Position 2842
17 Trade restrictions and policies
Subheading 284210
11 Trade restrictions and policies
Customs Tariff Number 28421000
2023-02-10
ERGA OMNES (1011)
Import control on REACH
Regulation 1907/06
2015-05-15
ERGA OMNES (1011)
Third country duty
Regulation 3115/94
2025-01-01
ERGA OMNES (1011)
Autonomous tariff suspension
Regulation 3211/24
2015-05-15
ERGA OMNES (1011)
Third country duty
Regulation 3115/94
2025-01-01
ERGA OMNES (1011)
Autonomous tariff suspension
Regulation 3211/24
2018-07-01
ERGA OMNES (1011)
Third country duty
Regulation 1925/17
2025-01-01
ERGA OMNES (1011)
Autonomous tariff suspension
Regulation 3211/24
2022-01-01
ERGA OMNES (1011)
Third country duty
Regulation 1832/21
2025-01-01
ERGA OMNES (1011)
Autonomous suspension under end-use
Regulation 3211/24
2015-05-15
ERGA OMNES (1011)
Third country duty
Regulation 3115/94
2015-05-15
ERGA OMNES (1011)
Third country duty
Regulation 3115/94
Changes to this tariff number
Changes based from 28421000
Changes in favor of 28421000
2001:
28421000
➜
2002:
28421000
2006:
28421000
➜
2007:
28421000
2006:
28421000
➜
2007:
28520000
2011:
28421000
➜
2012:
28529000
2011:
28421000
➜
2012:
28421000
Changes in favor of 28421000
2001:
28421000
➜
2002:
28421000
2001:
38249095
➜
2002:
28421000
2006:
28421000
➜
2007:
28421000
2011:
28421000
➜
2012:
28421000