蛭石

Description

Vermiculite · CAS 1318-00-9 · AlFeH3MgO6Si-3. Density: 2.6 @25 °C.

Identification

CAS Registry Number	1318-00-9
PubChem CID	156593754
Molecular formula	AlFeH3MgO6Si-3

Computed Descriptors

Molecular Weight	234.24
Hydrogen Bond Donor Count	2
Hydrogen Bond Acceptor Count	6
Rotatable Bond Count	0
Exact Mass	233.871405
Monoisotopic Mass	233.871405
Topological Polar Surface Area	66.2
Heavy Atom Count	10
Formal Charge	-3
Complexity	18.8

Physical & Chemical Properties

Density	2.6 @25 °C

Physical description & handling notes

• A hydrated magnesium-iron-aluminum silicate that expands up to 20 times when heated to 1093 degrees C; [Hawley]
• Vermiculite
• None
• formerly Cosmetics

Regulatory Status

GHS notification summary	67.6% (50 / 74)

GHS Hazard Classification

GHS notification summary	67.6% (50 / 74)
Reported hazard statements	H319 (32.4%), H335 (32.4%)

Documented Uses

• Used for insulating, fireproofing, soil conditioning, oil well drilling, packing, and absorbing various materials; Also used in concrete, plaster, animal feed, and as a filler in paint, rubber, and plastic; [Hawley] Vermiculite installed in the past as loose-fill insulation in attics should be considered to be contaminated with asbestos. [Reference #1]
• Petroleum Production and Refining [Category: Industry]
• Painting (Pigments, Binders, and Biocides) [Category: Paint]
• Farming (Feed Additives) [Category: Industry]
• Information on 15 consumer products that contain Vermiculite in the following categories is provided:

Synonyms

Vermiculite (Mg0.33[Mg2-3(Al0-1Fe0-1)0-1](Si2.33-3.33Al0.67-1.67)(OH)2O10.4H2O); DTXSID7047489; Vermiculite (Mg0.33(Mg2-3(Al0-1Fe0-1)0-1)(Si2.33-3.33Al0.67-1.67)(OH)2O10.4H2O); RefChem:193989; 603-518-0; 1318-00-9; Vermiculite

Frequently Asked Questions

What are the CAS number and molecular formula of Vermiculite?

CAS 1318-00-9; molecular formula AlFeH3MgO6Si-3; molecular weight — g/mol.

What other names is Vermiculite known by?

Vermiculite (Mg0.33[Mg2-3(Al0-1Fe0-1)0-1](Si2.33-3.33Al0.67-1.67)(OH)2O10.4H2O), DTXSID7047489, Vermiculite (Mg0.33(Mg2-3(Al0-1Fe0-1)0-1)(Si2.33-3.33Al0.67-1.67)(OH)2O10.4H2O), RefChem:193989, 603-518-0, 1318-00-9.

Is Vermiculite classified as hazardous?

67.6% of GHS notifications report no hazard classification (50 of 74).

What are the key physical properties of Vermiculite?

Density: 2.6 @25 °C.

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.