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BERYLLIUM OXIDEICSC: 1325 (November 2016)
Beryllium monoxide
Beryllia
CAS #: 1304-56-9
UN #: 1566
EC Number: 215-133-1

  ACUTE HAZARDS PREVENTION FIRE FIGHTING
FIRE & EXPLOSION Not combustible. Gives off irritating or toxic fumes (or gases) in a fire.        Use fine water spray. In case of fire in the surroundings, use appropriate extinguishing media.   

 PREVENT DISPERSION OF DUST! AVOID ALL CONTACT!  
  SYMPTOMS PREVENTION FIRST AID
Inhalation Cough. Laboured breathing. Shortness of breath. Sore throat. Symptoms may be delayed. See Notes.  Use closed system.  Fresh air, rest. Half-upright position. Refer for medical attention. 
Skin MAY BE ABSORBED!  Protective gloves. Protective clothing.  Remove contaminated clothes. Rinse skin with plenty of water or shower. Wear protective gloves when administering first aid. 
Eyes Redness. Pain.  Wear face shield or eye protection in combination with breathing protection if powder.  First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention. 
Ingestion   Do not eat, drink, or smoke during work. Wash hands before eating.  Rinse mouth. Refer for medical attention . 

SPILLAGE DISPOSAL CLASSIFICATION & LABELLING
Personal protection: chemical protection suit including self-contained breathing apparatus. Do NOT let this chemical enter the environment. Sweep spilled substance into sealable containers. If appropriate, moisten first to prevent dusting. Carefully collect remainder. Then store and dispose of according to local regulations. 

According to UN GHS Criteria

skull;toxiccancer;health haz
Fatal if inhaled
Causes eye irritation
May cause allergy or asthma symptoms or breathing difficulties if inhaled
May cause an allergic skin reaction
May cause cancer
Causes damage to lungs if inhaled
May cause respiratory irritation
Causes damage to the lungs through prolonged or repeated exposure
May cause long lasting harmful effects to aquatic life 

Transportation
UN Classification
UN Hazard Class: 6.1; UN Pack Group: II 

STORAGE
Provision to contain effluent from fire extinguishing. Separated from food and feedstuffs. Well closed. Store only in original container. Store in an area without drain or sewer access. 
PACKAGING
Unbreakable packaging.
Put breakable packaging into closed unbreakable container.
Do not transport with food and feedstuffs. 
BERYLLIUM OXIDE ICSC: 1325
PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
WHITE CRYSTALS OR POWDER. 

Physical dangers
 

Chemical dangers
Upon heating, toxic fumes are formed. 

Formula: BeO
Molecular mass: 25.0
Boiling point: 3787°C
Melting point: 2530°C
Density: 3.0 g/cm³
Solubility in water: insoluble 


EXPOSURE & HEALTH EFFECTS

Routes of exposure
The substance can be absorbed into the body in hazardous amounts by inhalation of its aerosol and by ingestion. 

Effects of short-term exposure
The substance is irritating to the eyes and respiratory tract. Inhalation of dust or fume may cause chemical pneumonitis. The effects may be delayed. Medical observation is indicated. Exposure could cause death. 

Inhalation risk
A harmful concentration of airborne particles can be reached quickly when dispersed. 

Effects of long-term or repeated exposure
Sensitization to the substance, through repeated or prolonged inhalation or skin contact, may result in serious granulomatous lung disease (chronic beryllium disease). This substance is carcinogenic to humans. 


OCCUPATIONAL EXPOSURE LIMITS
TLV: (as Be): (inhalable fraction): 0.00005 mg/m3, as TWA; (skin); A1 (confirmed human carcinogen); (SEN).
MAK: sensitization of respiratory tract and skin (SAH); carcinogen category: 1.
EU-OEL: (inhalable fraction): 0.0002 mg/m3 as TWA; (skin and respiratory sensitizer); (see Notes) 

ENVIRONMENT
The substance may cause long-term effects in the aquatic environment. 

NOTES
The symptoms of acute pneumonitis following a massive short-term exposure do not become manifest until 3 days.
Depending on the degree of exposure, periodic medical examination is suggested.
Do NOT take working clothes home.
Isolate contaminated clothing by sealing in a bag or other container.
An EU-OEL of 0.0006 mg/m3 is allowed until 11 July 2026. 

ADDITIONAL INFORMATION
  EC Classification
Symbol: T+; R: 49-25-26-36/37/38-43-48/23; S: 53-45; Note: E 

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