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Description

Mica · CAS 12001-26-2 · Al6F2H2K2O22Si6. UNII V8A1AW0880. Melting Point: 1500 °C; Melting Point: 1387 °C; Density: 2.6-3.2.

Identification

CAS Registry Number	12001-26-2
PubChem CID	131842327
Molecular formula	Al6F2H2K2O22Si6
IUPAC name	hexaaluminum;dipotassium;hexakis(dioxosilane);nonakis(oxygen(2-));difluoride;hydrate
UNII (FDA)	V8A1AW0880

Computed Descriptors

Molecular Weight	800.60
Hydrogen Bond Donor Count	1
Hydrogen Bond Acceptor Count	24
Rotatable Bond Count	0
Exact Mass	799.578781
Monoisotopic Mass	799.578781
Topological Polar Surface Area	215
Heavy Atom Count	38
Formal Charge	0
Complexity	18.3

Physical & Chemical Properties

Melting Point	1500 °C
Melting Point	1387 °C
Density	2.6-3.2
Density	2.6-3.2 @25 °C
Vapor Pressure	0 mmHg (approx) (NIOSH, 2024)
Vapor Pressure	0 mmHg (approx)
Color Additive Status	73.1496
Color Additive Status	73.2496
Color Additive Status	73.350
Color Additive Status	73.3128

Physical description & handling notes

• MICA, a generic term, refers to any of a group of approximately 30 silicate minerals occurring as non-fibrous plates. Muscovite (hydrated aluminium potassium silicate[KAl2(AlSi3O10)(F, OH)2 ])and phlogopite (potassium magnesium aluminum silicate hydroxide) are the two major micas of commerce. Micas are commonly found in ordinary rocks. Inhalation of mica dust presents an occupational hazard.
• Dry Powder; Large Crystals; CBI
• Colorless, odorless flakes or sheets of hydrous silicates; [NIOSH] Crystalline silica not bound to other minerals is "free" silica. Silicates are minerals in which silicon and oxygen are combined with other elements. [Rom, p. 364]
• Colorless, odorless flakes or sheets of hydrous silicates.
• Light gray to dark flakes or particles
• Soft, translucent solid; colorless to slight red (ruby), brown to greenish yellow (amber)... thin sheets that are flexible and elastic

Regulatory Status

Regulatory & Food Contact	FDA Regulatory Status of Color Additives: Drugs, Cosmetics FDA Substance added to food: COLOR OR COLORING ADJUNCT FDA Inventory of Food Contact Substances Listed in 21 CFR: FCS CIR / INCI: Cosmetics ingredient -> Anticaking/Absorbents; Bulking/Viscosity; Colorant; Opacifying Agent CIR / INCI: Opacifying
GHS notification summary	71.3% (600 / 841)

GHS Hazard Classification

GHS notification summary	71.3% (600 / 841)
Reported hazard statements	H319 (17.5%), H335 (17.5%), H372 (11.5%), H373 (12.5%)

Documented Uses

• Mica, mainly muscovite and phlogopite, contains less than 1% quartz. Other species of mica are biotite, lepidolite, zimmwaldite, and roscoelite. Used as a filler for paint, cement, asphalt, and insulation material for electrical cables; Also used in drilling muds, cosmetics, and vacuum tubes/condensers; [ACGIH] Sericite is a variety of white mica; it is similar to muscovite and is used as a filler, carrier, and lubricant; [Reference #1]
• Petroleum Production and Refining [Category: Industry]
• PAPER & PAINT MANUFACTURE, & IN ELECTRIC INDUSTRY
• Electrical equipment, vacuum tubes, incandescent lamps, dusting agent, lubricant, windows in high-temperature equipment, filler in exterior paints, cosmetics, glass and ceramic flux, roofing, rubber, mold-release- agent, specialty paper for insulation and filtration, wallpaper and wallboard joint cement, oil-well drilling muds.
• Large transparent sheets used to serve as window panes...still used for slow combustion stoves, lanterns or peep-hole furnances...mica powder is used in the mfg of electric cables, pneumatic tyres, welding electrodes, bitmunized cardboard, paints and plastics, dielectric dressings, and flameproof insulators; it is often compacted with alkyd resins; vermiculite is widely used as an insulating material in the building industry; lepidolite is used in the glass and ceramic industries
• For more Uses (Complete) data for MICA (6 total), please visit the HSDB record page.

Synonyms

MICA; Muscovite mica; V8A1AW0880; Zimmwaldite; Suzorite; Abhrak; Suzorite mica; Mica, fluorian; Silicate, mica; Micromica W 1; Suzorite 60S; Davenite P 12; Sansostory SHC2000; RefChem:818809; P 80P; HX 610

Frequently Asked Questions

What are the CAS number and molecular formula of Mica?

CAS 12001-26-2; molecular formula Al6F2H2K2O22Si6; molecular weight — g/mol.

What other names is Mica known by?

MICA, Muscovite mica, V8A1AW0880, Zimmwaldite, Suzorite, Abhrak.

What is the regulatory status of Mica?

Documented regulatory listings: FDA Regulatory Status of Color Additives: Drugs, Cosmetics; FDA Substance added to food: COLOR OR COLORING ADJUNCT; FDA Inventory of Food Contact Substances Listed in 21 CFR: FCS.

Is Mica classified as hazardous?

71.3% of GHS notifications report no hazard classification (600 of 841).

What are the key physical properties of Mica?

Melting Point: 1500 °C; Melting Point: 1387 °C; Density: 2.6-3.2; Density: 2.6-3.2 @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.