ICSC 0836 - BORON OXIDE

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BORON OXIDE	ICSC: 0836 (April 2014)
Boric anhydride Boron trioxide Boron sesquioxide Diboron trioxide

CAS #: 1303-86-2

EC Number: 215-125-8

	ACUTE HAZARDS	PREVENTION	FIRE FIGHTING
FIRE & EXPLOSION	Not combustible.		In case of fire in the surroundings, use appropriate extinguishing media.

PREVENT DISPERSION OF DUST! STRICT HYGIENE!
	SYMPTOMS	PREVENTION	FIRST AID
Inhalation	Cough. Sore throat.	Use local exhaust or breathing protection.	Fresh air, rest.
Skin	Redness.	Protective gloves. Protective clothing.	Rinse and then wash skin with water and soap.
Eyes	Redness. Pain.	Wear safety spectacles or eye protection in combination with breathing protection.	First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.
Ingestion	Nausea. Vomiting. Abdominal pain. Diarrhoea. Headache. Drowsiness. Convulsions.	Do not eat, drink, or smoke during work.	Rinse mouth. Do NOT induce vomiting. Refer for medical attention .

SPILLAGE DISPOSAL	CLASSIFICATION & LABELLING
Personal protection: particulate filter respirator adapted to the airborne concentration of the substance. Sweep spilled substance into covered 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 DANGER Causes serious eye irritation May cause respiratory irritation May damage fertility or the unborn child Transportation UN Classification
STORAGE
Dry. Well closed.
PACKAGING

BORON OXIDE

ICSC: 0836

PHYSICAL & CHEMICAL INFORMATION
Physical State; Appearance WHITE HYGROSCOPIC POWDER OR GRANULES Physical dangers Chemical dangers Attacks metal in the presence of moist air. This produces hydrogen. This generates fire and explosion hazard.	Formula: B₂O₃ Molecular mass: 69.6 Boiling point: ~1860°C Melting point: 450°C Relative density (water = 1): 2.46 (cryst) Relative density (water = 1): 1.8 (amorph) Solubility in water, g/l at 25°C: 36 (moderate)

PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
WHITE HYGROSCOPIC POWDER OR GRANULES

Physical dangers

Chemical dangers
Attacks metal in the presence of moist air. This produces hydrogen. This generates fire and explosion hazard.

Formula: B₂O₃
Molecular mass: 69.6
Boiling point: ~1860°C
Melting point: 450°C
Relative density (water = 1): 2.46 (cryst)
Relative density (water = 1): 1.8 (amorph)
Solubility in water, g/l at 25°C: 36 (moderate)

EXPOSURE & HEALTH EFFECTS
Routes of exposure The substance can be absorbed into the body by inhalation of its aerosol and by ingestion. Effects of short-term exposure The substance is irritating to the eyes, skin and respiratory tract. The substance may cause effects on the central nervous system and kidneys. This may result in impaired functions.	Inhalation risk Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly , especially if powdered. Effects of long-term or repeated exposure The substance may have effects on the upper respiratory tract. Animal tests show that this substance possibly causes toxicity to human reproduction or development.

EXPOSURE & HEALTH EFFECTS

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

Effects of short-term exposure
The substance is irritating to the eyes, skin and respiratory tract. The substance may cause effects on the central nervous system and kidneys. This may result in impaired functions.

Inhalation risk
Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly , especially if powdered.

Effects of long-term or repeated exposure
The substance may have effects on the upper respiratory tract. Animal tests show that this substance possibly causes toxicity to human reproduction or development.

OCCUPATIONAL EXPOSURE LIMITS
TLV: 10 mg/m³, as TWA

ENVIRONMENT

NOTES
See ICSC 0991.

ADDITIONAL INFORMATION

EC Classification
R: 60-61; S: 53-45; Symbol: T

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