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

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.Measured value |
|---|---|
| Density | 2.02 to 2.08exp.Measured value |
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.Computed value |
|---|---|
| Exact mass | 821.1362 Dacalc.Computed value |
| LogP (octanol/water) | -35.06calc.Computed value |
| Topological polar surface area | 1,063 Ųcalc.Computed value |
| Hydrogen bond donors | 0calc.Computed value |
| Hydrogen bond acceptors | 5calc.Computed value |
| Rotatable bonds | 2calc.Computed value |
| Heavy atoms | 42calc.Computed value |
| Rings | 0calc.Computed value |
| Aromatic rings | 0calc.Computed value |
| Fraction sp3 carbons | 0calc.Computed value |
| Formal charge | 3calc.Computed value |
| Stereocentres | 0calc.Computed value |
| Components | 36calc.Computed value |
Calculated for screening. Confirm critical figures with the supplier.
Safety and hazards
GHS classification summary, not a safety data sheet
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.
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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.
Industries and functions
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 cosmeticsName: 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.
Double or complex silicates, including aluminosilicates whether or not chemically defined
- Netherlands25.3%
- Germany24.4%
- Japan11.3%
- United States15.2%
- Germany14.1%
- Netherlands13.5%
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?
What is the CAS number of Erionite?
What is the molecular formula and weight of Erionite?
What is Erionite used for?
Is Erionite hazardous?
What is the HS code of Erionite?
Where can I buy Erionite?
What is the price of Erionite?
Guides for buyers
Practical guides that help when you source, ship or handle Erionite
- Guide, SafetyHow to read a safety data sheet in 10 minutesA section by section method to pull the essentials out of any 16 section SDS: identity, hazards, composition, storage, PPE, properties, transport and emergency measures.Read
- Guide, Trade and logisticsShipping dangerous goods: UN numbers, classes and packing groupsHow the UN dangerous goods system works for chemicals, from the nine classes and UN numbers to packing groups, UN packaging marks, labels, documents and segregation.Read
- Guide, SafetyGHS pictograms, signal words and hazard statements explainedA practical guide to the nine GHS pictograms, the signal words Danger and Warning, H and P statements, and how to read a chemical label in seconds.Read
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