Beryllium oxide
Also known as oxoberyllium, Beryllia, Bromellete
Key facts
What buyers check first
- Appearance
- White hexagonal crystals
- Melting point
- 2,578 °C
- Boiling point
- 3,787 °C
- Density
- 3.01 g/cm³
- Solubility
- Insoluble in water, slightly soluble in acid and alkali solutions
- HS code
- 282590
- Category
- Oxides and peroxides
- UN number
- UN 1566
What is Beryllium oxide?
Plain description, key identifiers and synonyms
Beryllium oxide is a beryllium molecular entity consisting of beryllium (+2 oxidation state) and oxide in the ratio 1:1. In the solid state, BeO adopts the hexagonal wurtzite structure form while in the vapour phase, it is present as discrete diatomic covalent molecules. It has a role as a carcinogenic agent. It is a metal oxide and a beryllium molecular entity.
Identifiers
Registry numbers, names and line notations, tap to copy
- IUPAC name
- oxoberyllium
- CAS number
- 1304-56-9 CAS number cross-checked
- EC numbers
- 215-133-1, 680-425-1
- Molecular formula
- BeO
- UNII
- 2S8NLR37S3
- InChIKey
- LTPBRCUWZOMYOC-UHFFFAOYSA-N
- InChI
- InChI=1S/Be.O
- SMILES (canonical and isomeric)
- [Be]=O
Synonyms
- oxoberyllium
- Beryllia
- Bromellete
- Thermalox
- Beryllium monoxide
- Natural bromellite
- Thermalox 995
- Beryllium oxide (BeO)
- Bromelite
- Beryllium oxide, purum
- Beryllium Oxide Nanoparticle Dispersion
- Beryllium oxide, 99.98% trace metals basis
Physical and chemical properties
Measured values and descriptors computed from the structure
Physical and chemical properties
Measured values, check the supplier specification for your grade
| Appearance | White hexagonal crystalsexp.Measured value |
|---|---|
| Odour | Odorlessexp.Measured value |
| Melting point | 2,578 °Cexp.Measured value |
| Boiling point | 3,787 °Cexp.Measured value |
| Density | 3.01 g/cm³exp.Measured value |
| Solubility | Insoluble in water, slightly soluble in acid and alkali solutionsexp.Measured value |
Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.
Computed descriptors
Calculated from the structure, useful for screening and formulation
| Molecular weight | 25.01 g/molcalc.Computed value |
|---|---|
| Exact mass | 25.0071 Dacalc.Computed value |
| LogP (octanol/water) | -0.5calc.Computed value |
| Topological polar surface area | 17.07 Ųcalc.Computed value |
| Hydrogen bond donors | 0calc.Computed value |
| Hydrogen bond acceptors | 1calc.Computed value |
| Rotatable bonds | 0calc.Computed value |
| Heavy atoms | 2calc.Computed value |
| Rings | 0calc.Computed value |
| Aromatic rings | 0calc.Computed value |
| Fraction sp3 carbons | 0calc.Computed value |
| Formal charge | 0calc.Computed value |
| Stereocentres | 0calc.Computed value |
Calculated for screening. Confirm critical figures with the supplier.
Safety and hazards
GHS classification summary, not a safety data sheet
Hazard statements
- H301Toxic if swallowed.
- H315Causes skin irritation.
- H317May cause an allergic skin reaction.
- H319Causes serious eye irritation.
- H330Fatal if inhaled.
- H335May cause respiratory irritation.
- H350iMay cause cancer by inhalation.
- H372Causes damage to organs through prolonged or repeated exposure.
Precautionary statements (27)
- P203Obtain, read and follow all safety instructions before use.
- P260Do not breathe dust, fume, gas, mist, vapours or spray.
- P261Avoid breathing dust, fume, gas, mist, vapours or spray.
- P264Wash skin thoroughly after handling.
- P264 + P265Wash skin thoroughly after handling. Do not touch eyes.
- P270Do not eat, drink or smoke when using this product.
- P271Use only outdoors or in a well-ventilated area.
- P272Contaminated work clothing should not be allowed out of the workplace.
- P280Wear protective gloves, protective clothing, eye protection and face protection.
- P284In case of inadequate ventilation wear respiratory protection.
- P301 + P316If swallowed: Get emergency medical help immediately.
- P302 + P352If on skin: Wash with plenty of water.
- P304 + P340If inhaled: Remove person to fresh air and keep comfortable for breathing.
- P305 + P351 + P338If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
- P316Get emergency medical help immediately.
- P318If exposed or concerned, get medical advice.
- P319Get medical help if you feel unwell.
- P320Specific treatment is urgent (see supplemental first aid instructions on the label).
- P321Specific treatment (see supplemental first aid instructions on the label).
- P330Rinse mouth.
- P332 + P317If skin irritation occurs: Get medical help.
- P333 + P317If skin irritation or rash occurs: Get medical help.
- P337 + P317If eye irritation persists: Get medical help.
- P362 + P364Take off contaminated clothing. And wash it before reuse.
- P403 + P233Store in a well-ventilated place. Keep container tightly closed.
- P405Store locked up.
- P501Dispose of contents and container in accordance with local regulations.
- UN number
- UN 1566
- Transport hazard class
- 6.1
- Packing group
- II
GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.
Full safety data and first aidBeryllium oxide suppliers
Sponsored listings first, then the documented ranking: membership, verification, replies, completeness, freshness and ratings
- China ManufacturerUnclaimed profileBeryllium OxideGrade, purity and minimum order on requestPrice on request
- United States ManufacturerUnclaimed profileBeryllium OxideGrade, purity and minimum order on requestPrice on request
- China ManufacturerUnclaimed profileBeryllium OxideGrade, purity and minimum order on requestPrice on request
- Australia, Brookvale ManufacturerUnclaimed profileBeryllium OxideGrade, purity and minimum order on requestPrice on request
- United States, Mayfield Heights ManufacturerUnclaimed profileBeryllium oxideGrade, purity and minimum order on requestPrice on request
- China, Shanghai ManufacturerUnclaimed profileBeryllium OxideGrade, purity and minimum order on requestPrice on request
Suppliers marked Unclaimed profile have not claimed their profile yet. They are not verified by CompoundList, their offers are price on request and details may have changed, so please confirm them with the supplier. Company representatives can claim a profile with a business email on the company's own website domain. Our team verifies each claim and sends the result by email.
Where suppliers are based
6 suppliers in 3 countries
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Beryllium oxide price
Indicative price range per kg from live supplier offers
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Uses and applications
What the substance is used for, by industry and function
Beryllium oxide is used in high technology ceramics, electronic heat sinks, electrical insulators, microwave oven components, gyroscopes, military vehicle armor, rocket nozzles crucibles, thermocouple tubing, laser structural components, substrates for high-density electrical circuits, automotive ignition systems, and radar electronic countermeasure systems.
Electron tubes, resistor cores, windows in klystron tubes, transistor mountings, high-temperature reactor systems, additive to glass, ceramics and plastics, preparation of beryllium compounds, catalyst for organic reactions.
Transparency to microwaves has led to its use as windows, radomes and antennae in microwave devices, it is also used in high-power laser tubes.
Industrial uses: Other.
Consumer uses: Other.
Roles
- aetiopathogenetic role
- carcinogenic agent
Functional uses
- Surface modifier
Pharmacology
Beryllium Oxide is a white colored, crystalline, inorganic compound that emits toxic fumes of beryllium oxides upon heating. Beryllium oxide is widely used in industry due to its low density and high thermal and electrical conductivity. It is used in high-technology ceramics, electronic heat sinks, electrical insulators, high-power devices, high-density electrical circuits, microwaves, X-ray windows, nuclear reactor fuels and for various aerospace and military applications. Inhalation exposure to its dust irritates the nose, throat and lungs and can cause pneumonitis. Prolonged exposure can result in a chronic beryllium disease called berylliosis causing granuloma and fibrosis formation in the lungs. Beryllium is associated with an increased risk of developing lung cancer. (NCI05)
How it is made
Beryllium oxide is produced by the following processes: beryllium hydroxide is first converted to high-purity beryllium sulfate tetrahydrate, as described above. This salt is calcined at carefully controlled temperatures, between 1150 and 1450 °C, selected to give the properties of the beryllium oxide powders required by individual beryllia ceramic fabricators. Alternatively, beryllium hydroxide may be purified first and then calcined directly to beryllium oxide powder.
Produced by dissolving technical-grade beryllium hydroxide in sulfuric acid, precipitating out hydrated beryllium sulfate, which is then calcined at 1,150-1,450 °C.
By heating of beryllium nitrate or hydroxide.
Regulatory status
Inventories, regulations and trade controls that list this substance
Europe
- EU harmonised classification (CLP Annex VI)Index no: 004-003-00-8
United States
- TSCA inventory (USA)Status: Active in US commerce
HS code and trade data
Customs classification and reported world trade statistics
Global trade
World import and export statistics for the HS code Beryllium oxide is traded under.
Inorganic bases not elsewhere classified in heading 2825
- China28.5%
- United States23.7%
- Brazil10.8%
- South Korea77.2%
- Japan4.3%
- United States3.8%
The HS code shown for Beryllium oxide is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.
Related chemicals
Parent and salt forms, stereoisomers, similar structures and isomers
Stereoisomers and isotopic forms
Same connectivity, different stereochemistry or isotopes (same InChIKey skeleton)
Frequently asked questions
Quick answers about Beryllium oxide, based on the data on this page
What is Beryllium oxide?
What is the CAS number of Beryllium oxide?
What is the molecular formula and weight of Beryllium oxide?
What is Beryllium oxide used for?
Is Beryllium oxide hazardous?
What is the HS code of Beryllium oxide?
Where can I buy Beryllium oxide?
What is the price of Beryllium oxide?
Guides for buyers
Practical guides that help when you source, ship or handle Beryllium oxide
- Guide, SafetyHow to read a safety data sheet in 10 minutesA section by section method to pull the essentials out of any 16 section SDS: identity, hazards, composition, storage, PPE, properties, transport and emergency measures.Read
- Guide, Trade and logisticsShipping dangerous goods: UN numbers, classes and packing groupsHow the UN dangerous goods system works for chemicals, from the nine classes and UN numbers to packing groups, UN packaging marks, labels, documents and segregation.Read
- Guide, SafetyGHS pictograms, signal words and hazard statements explainedA practical guide to the nine GHS pictograms, the signal words Danger and Warning, H and P statements, and how to read a chemical label in seconds.Read
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