Beryllium Oxide - Materials / Alfa Chemistry

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Beryllium Oxide

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Catalog Number

ACMA00014301

Product Name

Beryllium Oxide

Category

Glass Additives

Description

Beryllium oxide is an odorless white solid. Sinks in water. (USCG, 1999);WHITE CRYSTALS OR POWDER.

IUPAC Name

oxoberyllium

Molecular Weight

25.012g/mol

Molecular Formula

BeO;BeO;BeO

Canonical SMILES

[Be]=O

InChI

InChI=1S/Be.O

InChI Key

LTPBRCUWZOMYOC-UHFFFAOYSA-N

Boiling Point

3787 °C;3787 °C

Melting Point

2578 °C;2530 °C

Density

3 at 68 °F (USCG, 1999);3.01 g/cu cm;3.0 g/cm³

Solubility

Insoluble in water; slightly soluble in acid and alkali solutions;2 ug/100 mL in water at 30 °C; soluble in concentrated sulfuric acid, fused potassium hydroxide;Slowly soluble in concentrated acids or fixed alkali hydroxides;Solubility in water: insoluble

Color/Form

White hexagonal crystals;Light, amorphous powder;White, amorphous powder or white hexagonal crystals

Complexity

Covalently-Bonded Unit Count

EC Number

215-133-1

Exact Mass

25.007098g/mol

Formal Charge

Heavy Atom Count

ICSC Number

1325

MeSH Entry Terms

beryllium oxide

Monoisotopic Mass

25.007098g/mol

Odor

Odorless

Other Experimental

After ignition it is almost insoluble in water, concentrated acids or solutions of fixed alkali hydroxides;Mohs hardness: 9;Extremely stable ... its stability depends on its structure and is determined by the content of bound water. The higher the calcination temperature, the more inert the beryllium oxide.;Pure (100%) beryllium oxide insulates electrically like a ceramic, but conducts heat like a metal.;Piezoelectric or pyroelectric. ... Undergoes hexagonal to tettragonal transition at 21 °C;Linear coefficient of thermal expansion = 5X10-6 1/K;Specific heat = 1.00 J/g-K at 292 K;Thermal conductivity = 264 W/m-K at room temperature;Electrical resistence = 1X10+16 ohm-m at room temperature;Heat resistant

Refractive Index

Index of refraction: 1.719, 1.733

Rotatable Bond Count

RTECS Number

DS4025000

Stability

Stable under recommended storage conditions.

UN Number

1566;1566;1566

MSDS

Download MSDS

COA