Bismuth Silicon Oxide


CAS #:

Linear Formula:

Bi4Si3O12 / Bi12SiO20

MDL Number:


EC No.:



Bismuth Silicon Oxide Crystal
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Bismuth Silicon Oxide Powder
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Bismuth Silicon Oxide Properties (Theoretical)

Compound Formula Bi4Si3O12 / Bi12SiO20
Molecular Weight 1112.17 / 2855.83
Appearance Yellowish crystal or powder
Melting Point 800 °C (Bi12SiO20)
Boiling Point N/A
Density 9.2 g/cm3 (Bi12SiO20)
Solubility in H2O Insoluble
Crystal Phase / Structure Body-centered cubic (Bi12SiO20)
Exact Mass 1111.79135 g/mol / 2855.64 g/mol
Monoisotopic Mass 1111.79135 g/mol / 2855.64 g/mol

Bismuth Silicon Oxide Health & Safety Information

Signal Word N/A
Hazard Statements N/A
Hazard Codes N/A
RTECS Number N/A
Transport Information NONH for all modes of transport

About Bismuth Silicon Oxide

Bismuth Silicon Oxide (BSO) is a photorefractive optical crystal with piezoelectric and optoelectronic applications. High purity, submicron and nanopowder forms may be considered. American Elements produces to many standard grades when applicable, including Mil Spec (military grade); ACS, Reagent and Technical Grade; Food, Agricultural and Pharmaceutical Grade; Optical Grade, USP and EP/BP (European Pharmacopoeia/British Pharmacopoeia) and follows applicable ASTM testing standards. Typical and custom packaging is available. Additional technical, research and safety (MSDS) information is available as is a Reference Calculator for converting relevant units of measurement.

Bismuth Silicon Oxide Synonyms

Bismuth silicate, BSO, Tetrabismuth trisilicate, Bismuth(3+) orthosilicate (4:3), Bismuth(III) silicate, bismuth(+3) dioxido-oxo-silane 15983-20-7, 51930-00-8, Bi2O9Si3, Bi12O16(SiO4), BixSiO1.5x+2, Bi4O9Si3-2, Bi4(Si3O4)3, Bi4Si3O12, Dodecabismuthino silicon icosaoxide, sillénite, nanostructured bismuth silicate - nBSO

Chemical Identifiers

Linear Formula Bi4Si3O12 / Bi12SiO20
MDL Number N/A
EC No. 240-118-1
Pubchem CID 167501 / 73555496
IUPAC Name tetrabismuth; trisilicate / dodecabismuth; oxygen(2-); silicate
InchI Identifier InChI=1S/4Bi.3O4Si/c;;;;3*1-5(2,3)4/q4*+3;3*-4 / InChI=1S/12Bi.O4Si.16O/c;;;;;;;;;;;;1-5(2,3)4;;;;;;;;;;;;;;;;/q12*+3;-4;16*-2

Packaging Specifications

Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and steel drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Shipping documentation includes a Certificate of Analysis and Safety Data Sheet (SDS). Solutions are packaged in polypropylene, plastic or glass jars up to palletized 440 gallon liquid totes, and 36,000 lb. tanker trucks.

Related Elements


See more Bismuth products. Bismuth (atomic symbol: Bi, atomic number: 83) is a Block P, Group 15, Period 6 element with an atomic radius of 208.98040. The number of electrons in each of Bismuth's shells is 2, 8, 18, 32, 18, 5 and its electron configuration is [Xe] 4f14 5d10 6s2 6p3. Bismuth Bohr ModelThe bismuth atom has a radius of 156 pm and a Van der Waals radius of 207 pm. In its elemental form, bismuth is a silvery white brittle metal. Bismuth is the most diamagnetic of all metals and, with the exception of mercury, its thermal conductivity is lower than any other metal. Elemental BismuthBismuth has a high electrical resistance, and has the highest Hall Effect of any metal (i.e., greatest increase in electrical resistance when placed in a magnetic field). Bismuth is found in bismuthinite and bismite. It is also produced as a byproduct of lead, copper, tin, molybdenum and tungsten extraction. Bismuth was first discovered by Early Man. The name Bismuth originates from the German word 'wissmuth,' meaning white mass.


See more Silicon products. Silicon (atomic symbol: Si, atomic number: 14) is a Block P, Group 14, Period 3 element with an atomic weight of 28.085. Silicon Bohr MoleculeThe number of electrons in each of Silicon's shells is 2, 8, 4 and its electron configuration is [Ne] 3s2 3p2. The silicon atom has a radius of 111 pm and a Van der Waals radius of 210 pm. Silicon was discovered and first isolated by Jöns Jacob Berzelius in 1823. Silicon makes up 25.7% of the earth's crust, by weight, and is the second most abundant element, exceeded only by oxygen. The metalloid is rarely found in pure crystal form and is usually produced from the iron-silicon alloy ferrosilicon. Elemental SiliconSilica (or silicon dioxide), as sand, is a principal ingredient of glass, one of the most inexpensive of materials with excellent mechanical, optical, thermal, and electrical properties. Ultra high purity silicon can be doped with boron, gallium, phosphorus, or arsenic to produce silicon for use in transistors, solar cells, rectifiers, and other solid-state devices which are used extensively in the electronics industry.The name Silicon originates from the Latin word silex which means flint or hard stone.

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