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7440-41-7

7440-41-7 structural image
Product Name: Beryllium
Formula: BeH2
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CHEMICAL AND PHYSICAL PROPERTIES

Physical Description Beryllium compounds, n.o.s. are generally white, crystalline or powdered material containing beryllium. They are generally soluble in water. They are toxic by inhalation and by ingestion.
Color/Form Hexagonal crystals
Odor Odorless
Boiling Point 4532 °F at 760 mmHg (NIOSH, 2023)
Melting Point 2349 °F (NIOSH, 2023)
Solubility Insoluble (NIOSH, 2023)
Density 1.85 at 68 °F (USCG, 1999) - Denser than water; will sink
Vapor Pressure 0 mmHg (approx) (NIOSH, 2023)
Stability/Shelf Life Resistant to oxidation at ordinary temperatures
Corrosivity Corrosion resistant
Heat of Combustion -28,000 btu/lb = -15,560 cal/g = -652X10+5 joules/kg
Other Experimental Properties Heat capacity at constant pressure: (30 °C) 0.437 cal/g/deg C; latent heat of fusion: 3.5 kcal/mol; Brinell hardness: 60-125; has high permeability to x-rays; anisotropic; chemical properties similar to aluminum; metal resistant to attack by acid due to formation of a thin oxide film.
Chemical Classes Metals -> Beryllium Compounds, Inorganic

SAFETY INFORMATION

Signal word Danger
Pictogram(s)

Skull and Crossbones
Acute Toxicity
GHS06

Health Hazard
GHS08
GHS Hazard Statements H301:Acute toxicity,oral
H315:Skin corrosion/irritation
H317:Sensitisation, Skin
H319:Serious eye damage/eye irritation
H330:Acute toxicity,inhalation
H335:Specific target organ toxicity, single exposure;Respiratory tract irritation
H350:Carcinogenicity
H372:Specific target organ toxicity, repeated exposure
Precautionary Statement Codes P201:Obtain special instructions before use.
P260:Do not breathe dust/fume/gas/mist/vapours/spray.
P280:Wear protective gloves/protective clothing/eye protection/face protection.
P284:Wear respiratory protection.
P320:Specific treatment is urgent (see … on this label).
P330:Rinse mouth.
P304+P340:IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.
P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P405:Store locked up.

COMPUTED DESCRIPTORS

Molecular Weight 9.012183 g/mol
Hydrogen Bond Donor Count 0
Hydrogen Bond Acceptor Count 0
Rotatable Bond Count 0
Exact Mass 9.0121831 g/mol
Monoisotopic Mass 9.0121831 g/mol
Topological Polar Surface Area 0 Ų
Heavy Atom Count 1
Formal Charge 0
Complexity 0
Isotope Atom Count 0
Defined Atom Stereocenter Count 0
Undefined Atom Stereocenter Count 0
Defined Bond Stereocenter Count 0
Undefined Bond Stereocenter Count 0
Covalently-Bonded Unit Count 1
Compound Is Canonicalized Yes

PRODUCT INTRODUCTION

description

Beryllium is a hard, grayish metal naturally found in mineral rocks, coal, soil, and volcanic dust. Beryllium compounds are commercially mined, and the Beryllium is purified for use in nuclear weapons and reactors, aircraft and space vehicle structures, instruments, x-ray machines, and mirrors. Beryllium ores are used to make speciality ceramics for electrical and high-technology applications. Beryllium alloys are used in automobiles, computers, sports equipment (golf clubs and bicycle frames), and dental bridges.