Beryllium diboride

  • Beryllium boride
Formula
Be2B
Description
Brown to black powder, no odor.

Registry Numbers and Inventories.
CAS
12536-51-5
EC (EINECS/ELINCS)
235-694-6
UN (DOT)
1566
Beilstein/Gmelin
858252 (G)
Canada DSL/NDSL
NDSL
US TSCA
Listed
Korea ECL
Listed

Properties.
Formula
BBe2
Formula mass
28.84
Solubility in water
Decomposes.

Hazards and Protection.
Storage
Store in a cool, dry location in a tightly sealed container.
Handling
Protective gear suitable to prevent contamination. mplement engineering and work practice controls to reduce and maintain concentration of exposure at low levels. Use good housekeeping and sanitation practices. Do not use tobacco or food in work area. Wash thoroughly before eating and smoking. Do not blow dust off clothing with compressed air.
Protection
Wear appropriate protective gloves, clothing and goggles.
Respirators
Wear positive pressure self-contained breathing apparatus (SCBA).
Small spills/leaks
ELIMINATE all ignition sources. Do not touch damaged containers or spilled material unless wearing appropriate protective clothing. Stop leak if you can do it without risk. Absorb or cover with dry earth, sand or other non-combustible material and transfer to containers. DO NOT GET WATER INSIDE CONTAINERS.
Stability
Stable at normal temperatures and pressures.
Incompatibilities
Water, strong acids and bases.
Decomposition
Beryllium oxide and H3B.

Fire.
Fire fighting
Extinguish using agent most appropriate for surrounding fire.
Fire potential
Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes.
Hazards
Contact with metals may evolve flammable hydrogen gas.
Combustion products
Fire may produce irritating, corrosive and/or toxic gases.
Health
4
 
Flammability
0
 
 
Reactivity
0
 

Health.
Exposure limit(s)
0.2 µg/m3 TLVC
Carcinogin
G-A1, I-1, N-1, CP65
Exposure effects
May cause inflammation of lungs, nose, throat and the mucous membrane of both the trachea and bronchi, hyperemia, edema, hemorrhage with mild edema of the brain, inflammation of the liver, focal hemorrhage of the spleen, granulomatous, crippling, incurable lung disease, pneumonitis, pulmonary dysfunction, heart enlargement and congestive heart failure, cyanosis, enlargement of liver and spleen, digital clubbing, formation of kidney stones, malignant tumors, cellular infiltration, interstices of various organs and tissues and calcific inclusions in cells and tissues.
   Ingestion
May cause boron poisoning.
   Inhalation
ay cause irritation to the upper respiratory tract, pneumonitis, nasopharyngitis, lung fibrosis, dyspnea, weight loss, inflammation and edema of the larynx and bronchi.
   Skin
May cause irritation, contact dermatitis and non-healing ulcerations at the site of injury. May cause dermatitis and chronic skin ulcers.
   Eyes
May cause irritation, conjunctivitis and corneal burns. May cause visual impairment.

First aid
 
   Ingestion
If conscious, give 1-2 glasses of milk or water and induce vomiting, seek medical attention. Never give anything by mouth or induce vomiting on an unconscious person.
   Inhalation
Move victim to fresh air. Apply artificial respiration if victim is not breathing. Do not use mouth-to-mouth method if victim ingested or inhaled the substance; induce artificial respiration with the aid of a pocket mask equipped with a one-way valve or other proper respiratory medical device. Administer oxygen if breathing is difficult.
   Skin
Remove and isolate contaminated clothing and shoes. Immediately flush with running water for at least 20 minutes. For minor skin contact, avoid spreading material on unaffected skin.
   Eyes
Immediately flush with running water for at least 20 minutes.

Transport.
UN number
1566
Response guide
Hazard class
6.1
Packing Group
II; III