九水偏硅酸钠

Description

Sodium metasilicate nonahydrate · CAS 13517-24-3 · H18Na2O12Si. UNII D8D44215LZ. Melting Point: 1089 °C; Density: 2.614 @25 °C.

Identification

CAS Registry Number	13517-24-3
PubChem CID	61639
Molecular formula	H18Na2O12Si
IUPAC name	disodium;dioxido(oxo)silane;nonahydrate
UNII (FDA)	D8D44215LZ

Computed Descriptors

Molecular Weight	284.20
Hydrogen Bond Donor Count	9
Hydrogen Bond Acceptor Count	12
Rotatable Bond Count	0
Exact Mass	284.03629110
Monoisotopic Mass	284.03629110
Topological Polar Surface Area	72.2
Heavy Atom Count	15
Formal Charge	0
Complexity	18.8

Physical & Chemical Properties

Melting Point	1089 °C
Density	2.614 @25 °C

Physical description & handling notes

• Efflorescent solid; [Merck Index] Hygroscopic solid; [Sigma-Aldrich MSDS]

GHS Hazard Classification

Reported hazard statements	H314 (99.5%), H318 (63.1%), H335 (86.1%), H371

Documented Uses

• Molding and Core Making [Category: Foundry]
• Petroleum Production and Refining [Category: Industry]
• Pulp and Paper Processing [Category: Industry]
• Painting (Pigments, Binders, and Biocides) [Category: Paint]
• Working with Glues and Adhesives [Category: Other]
• Sewer and Wastewater Treatment [Category: Industry]

Synonyms

Sodium metasilicate nonahydrate; 13517-24-3; Silicic acid (H2SiO3), disodium salt, nonahydrate; sodium silicate nonahydrate; D8D44215LZ; DISODIUM METASILICATE NONAHYDRATE; DTXSID9029728; CHEBI:132108; RefChem:183975; DTXCID109728; disodium;dioxido(oxo)silane;nonahydrate; UNII-D8D44215LZ; H18Na2O12Si; SCHEMBL578147; PHIQPXBZDGYJOG-UHFFFAOYSA-N; AKOS030228265

Frequently Asked Questions

What are the CAS number and molecular formula of Sodium metasilicate nonahydrate?

CAS 13517-24-3; molecular formula H18Na2O12Si; molecular weight — g/mol.

What other names is Sodium metasilicate nonahydrate known by?

Sodium metasilicate nonahydrate, 13517-24-3, Silicic acid (H2SiO3), disodium salt, nonahydrate, sodium silicate nonahydrate, D8D44215LZ, DISODIUM METASILICATE NONAHYDRATE.

Is Sodium metasilicate nonahydrate classified as hazardous?

Hazard statements reported: H314, H318, H335, H371.

What are the key physical properties of Sodium metasilicate nonahydrate?

Melting Point: 1089 °C; Density: 2.614 @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.