长石

Description

FELDSPAR · CAS 68476-25-5 · AlKO8Si3. UNII 96874XSJ39.

Identification

CAS Registry Number	68476-25-5
PubChem CID	3080680
Molecular formula	AlKO8Si3
IUPAC name	aluminum;potassium;octakis(oxygen(2-));tris(silicon(4+))
UNII (FDA)	96874XSJ39

Computed Descriptors

Molecular Weight	278.33
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	8
Rotatable Bond Count	0
Exact Mass	277.8353415
Monoisotopic Mass	277.8353415
Topological Polar Surface Area	8
Heavy Atom Count	13
Formal Charge	0
Complexity	0

Physical description & handling notes

• Feldspar is the name for the largest group of minerals in igneous rocks; Composed of aluminum silicate plus potassium and sodium; Granite consists of quartz, feldspar, and other minerals in small amounts; [Harber, p. 347]
• White to tan granules or powder; [K-T Feldspar MSDS]

GHS Hazard Classification

Reported hazard statements	H373 (100%)

Documented Uses

• Glass Manufacturing [Category: Industry]
• Ceramics making [Category: Hobbies]
• Glassblowing [Category: Hobbies]

Synonyms

Feldspar; 12168-80-8; Aluminate(1-), octaoxotrisilicate-, potassium; RefChem:55786; 934-437-1; Orthoclase; Orthoclase (K(AlSi3O8)); 12251-44-4; aluminum;potassium;oxygen(2-);silicon(4+); Potassium feldspar; 96874XSJ39; UNII-96874XSJ39; ORTHOSE; Aluminum potassium silicon oxide (AlKSi3O8); GEMS'TONE LEPIDOLITE; DLHONNLASJQAHX-UHFFFAOYSA-N

Frequently Asked Questions

What are the CAS number and molecular formula of FELDSPAR?

CAS 68476-25-5; molecular formula AlKO8Si3; molecular weight — g/mol.

What other names is FELDSPAR known by?

Feldspar, 12168-80-8, Aluminate(1-), octaoxotrisilicate-, potassium, RefChem:55786, 934-437-1, Orthoclase.

Is FELDSPAR classified as hazardous?

Hazard statements reported: H373.

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.