Beryllium hydroxide, also known as hydrated beryllia and beryllium dihydroxide, is a metal hydroxide that has amphoteric properties (behaves both as an acid and base) and chemically represented by Be(OH)2 [1, 2]. The pure beryllium hydroxide occurs naturally as the rare, orthorhombic mineral behoite, and very rare monoclinic clinobehoite .
Beryllium Hydroxide Identification
|CAS Number||13327-32-7 |
|PubChem CID||518753 |
|ChemSpider ID||24110 |
|EC Number||236-368-6 |
|UN Number||1566 |
|RTECS Number||DS3150000 |
|InChI Key||WPJWIROQQFWMMK-UHFFFAOYSA-L |
How is Beryllium Hydroxide Prepared
Pure beryllium hydroxide is synthesized as a by-product during the extraction of beryllium from mineral ore beryl (Be3Al2Si6O18) or bertrandite (Be4Si2H2O9) . The ore is melted, solidified, crushed, and then treated with sulfuric acid to produce a water-soluble sulfate . The sulfate undergoes several chemical extraction procedures so that all contaminants are removed and beryllium hydroxide is formed as a precipitate .
Reactions with Other Compounds
Beryllium Hydroxide and Sodium Hydroxide
When a concentrated solution of sodium hydroxide reacts with beryllium hydroxide, it dissolves to produce sodium tetrahydroxoberyllate [2, 6]:
Be(OH)2 + 2NaOH → Na2[Be(OH)4]
Beryllium Hydroxide and Hydrochloric Acid
It reacts with dilute hydrochloric acid to form beryllium chloride, as indicated by the following chemical equation :
Be(OH)2 + 2HCl → BeCl2 + 2H2O
Properties and Characteristics of Beryllium Hydroxide
|Molar Mass/Molecular Weight||43.026 g/mol |
|Color and Appearance||White, opaque crystalline powder |
|Density||1.92 g cm-3 |
|Melting Point||138 ° C, 280.4 °F (decomposes) |
|Boiling Point||N/A |
|State of matter at room temperature||Solid|
|Solubility||Soluble in hot sodium hydroxide and acids, slightly soluble in dilute alkali |
|Solubility in Water||Almost insoluble in water (0.0000023965 g per L) |
|Heat Capacity (C)||1.443 J K-1|
|Crystal Structure||Linear with tetrahedral beryllium centers|
What Is It Used for
- As a source in the manufacture of beryllium and its oxide .
- In braking systems, engines, altimeters, and precision tools in the aerospace industry .
- Producing anti-lock brake systems, steering wheel components, and air-bag sensors .
- Manufacturing medical laser components, X-ray tube windows, and dental crowns .
- Making nuclear reactor components, missile guidance systems, and heat shields in defense industry .
Is It Safe
Beryllium hydroxide is known to be carcinogenic and repeated exposure through contact, inhalation, or ingestion may cause organ toxicity . It is also hazardous to aquatic life .
- Beryllium Hydroxide – Pubchem.ncbi.nim.nih.gov
- Some Beryllium Chemistry Untypical Of Group 2 – Chemguide.co.uk
- Beryllium Dihydroxide (13327-32-7) – Chemchart.com
- Beryllium Hydroxide – Chemspider.com
- Sources of Beryllium – Berylium.com
- Beryllium Hydroxide React with Sodium Hydroxide – Chemiday.com
- Beryllium Hydroxide – Americanelements.com
- Beryllium Hydroxide – Chemicalbook.com
- Beryllium Hydroxide Market Analysis By Application (Aerospace, Automotive, Biomedical, Defence, Electrical and telecommunications), By Region (North America, Europe, Asia Pacific, Latin America And Middle East & Africa), 2014 To 2025 – Grandviewresearch.com