水合硅酸铝

Description

Aluminum Silicate n-Hydrate · CAS 12141-46-7 · Al2O5Si. UNII T1FAD4SS2M.

Identification

CAS Registry Number	12141-46-7
PubChem CID	56841952
Molecular formula	Al2O5Si
IUPAC name	dialuminum;pentakis(oxygen(2-));silicon(4+)
UNII (FDA)	T1FAD4SS2M

Computed Descriptors

Molecular Weight	162.05
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	5
Rotatable Bond Count	0
Exact Mass	161.914576
Monoisotopic Mass	161.914576
Topological Polar Surface Area	5
Heavy Atom Count	8
Formal Charge	0
Complexity	0

Physical description & handling notes

• Andalusite: Chunks; [Alfa Aesar MSDS] Usually contains water; Polymorphous; [Merck Index]

Regulatory Status

Regulatory & Food Contact	FDA Inventory of Food Contact Substances Listed in 21 CFR: FCS ANTICAKING_AGENT: Food Additives ALUMINIUM SILICATE NOT SPECIFIED The Committee did not receive any information. Consequently, the Committee decided to withdraw the tentative s TRS 995-JECFA 80/38
GHS notification summary	92.5% (210 / 227)

GHS Hazard Classification

GHS notification summary	92.5% (210 / 227)
Reported hazard statements	H372 (33.3%), H373 (33.3%)

Documented Uses

• Used in dental cements, in the glass industry, to make semiprecious stones, enamels, ceramics, and colored lakes, as a paint filler, and in washing compounds; Three forms found in nature are andalusite, cyanite, and sillimanite; Other aluminum silicate minerals include anauxite, dickite, kaolinite, kochite, mullite, newtonite, pyrophyllite, takizolite, and termierite; [Merck Index] Used in the basic chemicals industry and as a construction material additive; [IUCLID]
• Painting (Pigments, Binders, and Biocides) [Category: Paint]
• Glass Manufacturing [Category: Industry]
• Ceramics making [Category: Hobbies]
• Food Additives -> ANTICAKING_AGENT -> JECFA Functional Classes
• Information on 17 consumer products that contain Clay in the following categories is provided:

Synonyms

UNII-T1FAD4SS2M; Aluminum silicate, natural; Aluminum silicate, natural [JAN]; EINECS 235-253-8; Aluminum oxide silicate (Al2O(SiO4)); Aluminum silicate, natural (JAN); Adsorbin; Adsorbin (TN); Natural aluminum silicate; RefChem:111693; Natural aluminum silicate (JP17); 12141-46-7; Clay; ALUMINUM OXIDE SILICATE; T1FAD4SS2M; Aluminum silicate, synthetic

Frequently Asked Questions

What are the CAS number and molecular formula of Aluminum Silicate n-Hydrate?

CAS 12141-46-7; molecular formula Al2O5Si; molecular weight — g/mol.

What other names is Aluminum Silicate n-Hydrate known by?

UNII-T1FAD4SS2M, Aluminum silicate, natural, Aluminum silicate, natural [JAN], EINECS 235-253-8, Aluminum oxide silicate (Al2O(SiO4)), Aluminum silicate, natural (JAN).

What is the regulatory status of Aluminum Silicate n-Hydrate?

Documented regulatory listings: FDA Inventory of Food Contact Substances Listed in 21 CFR: FCS; ANTICAKING_AGENT: Food Additives; ALUMINIUM SILICATE.

Is Aluminum Silicate n-Hydrate classified as hazardous?

92.5% of GHS notifications report no hazard classification (210 of 227).

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.