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Erionite

Also known as Erionite ((K0-1Na0-1Ca0-0.5)10(Al10Si26O72).30H2O)

Erionite chemical structure, H60AlCaKNaO36Si2+3, CAS 12510-42-8
2D chemical structure

Key facts

What buyers check first

CAS number
12510-42-8
Formula
H60AlCaKNaO36Si2+3
Appearance
Hexagonal, cage-like structure composed of a framework of linked (Si,Al)O4 tetrahedra
Density
2.02 to 2.08
HS code
284210
Category
Silicates, borates and other salts
Illustrative photo, closed blue fibre drums on a pallet in a warehouse
Typical packagingIllustrative packaging image, not the actual product

What is Erionite?

Plain description, key identifiers and synonyms

Erionite is a naturally occurring, fibrous mineral consisting of white, prismatic crystals. Erionite is one of the more common types of zeolites that are found in the earth's crust. This mineral is used as a metal-impregnated catalyst, as a fertilizer, to control odors in livestock production and is used in animal feed, pet litter and horticultural applications. Excessive inhalation of its dust can cause pulmonary fibrosis or silicatosis and prolonged exposure to erionite causes mesothelioma in humans. It is known to be a human carcinogen. (NCI05)

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
aluminum, calcium, potassium, sodium, oxido-[oxido(oxo)silyl]oxy-oxosilane, oxygen(2-), triacontahydrate
CAS number
12510-42-8 CAS number cross-checkedOther or deprecated CAS: 66733-21-9
EC numbers
620-440-2, 643-075-0
Molecular formula
H60AlCaKNaO36Si2+3
InChIKey
AQTSNQQRPNNYRB-UHFFFAOYSA-N
InChI
InChI=1S/Al.Ca.K.Na.O5Si2.30H2O.O/c;;;;1-6(2)5-7(3)4;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;/h;;;;;30*1H2;/q+3;+2;2*+1;-2;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;-2
SMILES (canonical and isomeric)
O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.[O-2].[O-][Si](=O)O[Si](=O)[O-].[Na+].[Al+3].[K+].[Ca+2]

Synonyms

  • Erionite ((K0-1Na0-1Ca0-0.5)10(Al10Si26O72).30H2O)

Physical and chemical properties

Measured values and descriptors computed from the structure

Physical and chemical properties

Measured values, check the supplier specification for your grade

Appearance
Hexagonal, cage-like structure composed of a framework of linked (Si,Al)O4 tetrahedraexp.
Density
2.02 to 2.08exp.

Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.

Computed descriptors

Calculated from the structure, useful for screening and formulation

Molecular weight
821.76 g/molcalc.
Exact mass
821.1362 Dacalc.
LogP (octanol/water)
-35.06calc.
Topological polar surface area
1,063 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
5calc.
Rotatable bonds
2calc.
Heavy atoms
42calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0calc.
Formal charge
3calc.
Stereocentres
0calc.
Components
36calc.

Calculated for screening. Confirm critical figures with the supplier.

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Danger
GHS08: Serious health hazard
Serious health hazard

Hazard statements

  • H350May cause cancer.
Precautionary statements (5)
  • P203Obtain, read and follow all safety instructions before use.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P318If exposed or concerned, get medical advice.
  • P405Store locked up.
  • P501Dispose of contents and container in accordance with local regulations.

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

Full safety data and first aid

Erionite suppliers

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Erionite price

Indicative price range per kg from live supplier offers

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Uses and applications

What the substance is used for, by industry and function

Erionite is no longer mined or marketed for commercial purposes. Although other natural zeolites have many commercial uses (pet litter, soil conditioners, animal feed, waste-water treatment, gas absorbents, etc.) because of their unique properties, very few data are available specifically for erionite. It reportedly was used in the past as a noble metal-impregnated catalyst in a hydrocarbon-cracking process and was studied for use in fertilizers and to control odors in livestock production. Erionite-rich blocks have been used to build houses in parts of the western U.S., but this was a minor and unintentional use of the mineral.

How it is made

Erionite forms brittle, wool-like fibrous masses in the hollows of rock formations

Regulatory status

Inventories, regulations and trade controls that list this substance

Europe

  • EU harmonised classification (CLP Annex VI)
    Index no: 650-012-00-0

Health and food

  • EU Cosmetics Regulation Annex II, prohibited in cosmetics
    Name: Erionite, Ref no: 761, Annex ref: II/761

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Erionite is traded under.

HS 2842.10Indicative HS code

Double or complex silicates, including aluminosilicates whether or not chemically defined

World exports in 2024
$929M
−10.0% vs 2023, imports $944M
2019 to 2024
Top exporters
  1. Netherlands25.3%
  2. Germany24.4%
  3. Japan11.3%
Top importers
  1. United States15.2%
  2. Germany14.1%
  3. Netherlands13.5%
Reported customs values in USD, not prices.Full trade data

The HS code shown for Erionite is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Erionite, based on the data on this page

What is Erionite?

Erionite is a naturally occurring, fibrous mineral consisting of white, prismatic crystals. Erionite is one of the more common types of zeolites that are found in the earth's crust.

What is the CAS number of Erionite?

The CAS registry number of Erionite is 12510-42-8. Other or deprecated CAS numbers: 66733-21-9.

What is the molecular formula and weight of Erionite?

The molecular formula of Erionite is H60AlCaKNaO36Si2+3 and its molar mass is 821.76 g/mol.

What is Erionite used for?

Erionite is no longer mined or marketed for commercial purposes. Although other natural zeolites have many commercial uses (pet litter, soil conditioners, animal feed, waste-water treatment, gas absorbents, etc.) because of their unique properties, very few data are available specifically for erionite.

Is Erionite hazardous?

Erionite carries the GHS signal word "Danger". Main hazards: may cause cancer. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Erionite?

Erionite is usually classified under HS code 284210 (Double or complex silicates, including aluminosilicates whether or not chemically defined). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Erionite?

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What is the price of Erionite?

Suppliers quote Erionite on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

Guides for buyers

Practical guides that help when you source, ship or handle Erionite

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Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
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