Basic information
- CAS
10097-28-6- Standard SMILES
O=[Si]- InChIKey
LIVNPJMFVYWSIS-UHFFFAOYSA-N- Molecular formula
- OSi
- Average molar mass
- 44.084 g/mol
- Monoisotopic mass
- 43.97184115
Overview
Silicon monoxide is a silicon oxide.
Names & identifiers
- Preferred name
- Silicon oxide (SiO)
- IUPAC
- oxosilicon
- English name
- Silicon monoxide
- Molecular formula
- OSi
- Molecular weight
- 44.09
Names & synonyms
Silicon monoxide10097-28-6Silylene, oxo-Silicon oxide (SiO)1OQN9CBG7LDTXSID7064940CHEBI:30588Silicium OxydatumRefChem:183002DTXCID1032569233-232-8oxosilicon
Show more names
Monoxyanghuagyanghuaguiyangahuguioxo-silylenOxosilyleneSilicon oxidSiliciummonoxid
Silicon(II) oxideMFCD00151536oxidosiliconsilanonesilicon monooxideEINECS 233-232-813779-62-9SiO
Database identifiers
- CAS
10097-28-6、22755-01-7- PubChem CID
- 66241
- DTXSID
DTXSID7064940- ChEBI
CHEBI:30588- UNII
- 1OQN9CBG7L
- EC Number
- 233-232-8
- Nikkaji
- J241.263B、J751.728I
Properties
Computed structural properties
- Topological polar surface area
- 17.1 Ų
- Hydrogen bond donors
- 0
- Hydrogen bond acceptors
- 1
- Rotatable bonds
- 0
- Heavy atoms
- 2
- Formal charge
- 0
- Complexity
- 2
Experimental & physicochemical properties
Chemical ClassesMetals -> Metalloid Compounds (Silicon)
SpringerMaterials Properties
Gibbs energy
dielectric constant
Density2.15 @25 °C
Boiling Point1880 °C @760 [mm Hg]
Physical DescriptionBrownish-black solid; [Merck Index] Black odorless solid; [MSDSonline]
Physicochemical properties
- Melting point
- 1870 °C · 1870 °C
- Boiling point
- 1880 °C · 1880°C
- Density
- 2.13 g/mL · 2.13 g/mL at 25 °C (lit.)
- refractive index
- 1.98 · 1.9800
- Flash point
- 1880 °C · 1880°C
- storage temp.
- Store at room temperature, keep dry and cool
- form
- powder
- color
Safety & regulation
GHS classification
GHS Classification
This chemical does not meet GHS hazard criteria for 0.9% (3 of 327) of reports.
Warning
H315 (97.9%): Causes skin irritation [Warning Skin corrosion/irritation]
P261, P264, P264+P265, P271, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501 (click each P-code to see the statement)
Aggregated GHS information provided per 327 reports by companies from 10 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Hazard information
Regulatory Information
Chemical: Silylene, oxo-
Silylene, oxo- is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of Silylene, oxo- are required to report information about their production and use of this chemical to the EPA under the Toxic Substances Control Act (TSCA). (40 eCFR Part 711)
Silylene, oxo-: Does not have an individual approval but may be used under an appropriate group standard
Hazards SummaryAn irritant; [MSDSonline]
Hazard Classes and CategoriesSkin Irrit. 2 (97.9%)
Safety & protection
Protective Action Criteria (PAC)
12 [mg/m3]
130 [mg/m3]
790 [mg/m3]
Safety data
- PPE
- dust mask type N95 (US), Eyeshields, Gloves
- wgk
- 3
- tsca
- TSCA listed
Chemistry & industry
Uses & manufacturing
UsesUsed to make aluminum coatings, optical parts, mirrors, dielectrics, and insulators; [Hawley]
U.S. Production2023: 1,000,000 - <5,000,000 lb
Industry UsesNot Known or Reasonably Ascertainable
General Manufacturing Information
Other (requires additional information)
Silylene, oxo-: ACTIVE
Applications
UsesSilicon monoxide (SiO) is a commonly used material for a wide variety of applications with the emphasis on IR multilayer coatings and adhesion promotion. SiO sublimes and should preferably be evaporated from resistance heated boats. AREAS OF APPLICATION Multilayer coatings especially for the IR, but also the VIS range Adhesion promoter (VIS, NIR) Electronics: dielectric, insulating and protective layers Design: iridescent coatings, colored metallically reflecting coatings e.g. on sun glasses Web coating: barrier layers on polymer films
UsesSilicon(II) oxide sputtering target coatings are used for optical applications in reflectors, flood lamps, mirrors, jewelry, and other products. The coatings can reduce reflection in the near infrared range or act as interference layers. It is used in thin-film capacitors, hybrid circuits, semiconductor components and other electronic applications.
UsesTo form thin surface films for protection of alu- minum coatings, optical parts, mirrors, dielectrics, or insulators.
Upstream & downstream products
Upstream raw materials
Related reactions
2 records
Compound notes
Loading…