ICSC 0991 - BORIC ACID

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BORIC ACID	ICSC: 0991 (April 2014)
Boracic acid Orthoboric acid

CAS #: 10043-35-3

EC Number: 233-139-2

	ACUTE HAZARDS	PREVENTION	FIRE FIGHTING
FIRE & EXPLOSION	Not combustible. Gives off irritating or toxic fumes (or gases) in a fire.		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	No acute symptoms expected.	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.	Rinse with plenty of water (remove contact lenses if easily possible).
Ingestion	Nausea. Vomiting. Diarrhoea. Abdominal pain. Skin rash. Headache. Drowsiness. Convulsions.	Do not eat, drink, or smoke during work.	Rinse mouth. Do NOT induce vomiting. Refer immediately 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. Wash away remainder with plenty of water.	According to UN GHS Criteria DANGER May damage fertility or the unborn child Transportation UN Classification
STORAGE
Separated from strong bases.
PACKAGING

BORIC ACID

ICSC: 0991

PHYSICAL & CHEMICAL INFORMATION
Physical State; Appearance ODOURLESS COLOURLESS CRYSTALS OR WHITE POWDER. Physical dangers Chemical dangers Decomposes above 100°C . This produces water and irritant boric anhydride. The solution in water is a weak acid. Attacks metals. This produces hydrogen. This generates fire and explosion hazard.	Formula: BH₃O₃ / B(OH)₃ / H₃BO₃ Molecular mass: 61.8 Decomposes at 171°C Relative density (water = 1): 1.5 Solubility in water, g/100ml at 20°C: 5.6 Vapour pressure at 20°C: negligible Octanol/water partition coefficient as log Pow: -1.09

PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
ODOURLESS COLOURLESS CRYSTALS OR WHITE POWDER.

Physical dangers

Chemical dangers
Decomposes above 100°C . This produces water and irritant boric anhydride. The solution in water is a weak acid. Attacks metals. This produces hydrogen. This generates fire and explosion hazard.

Formula: BH₃O₃ / B(OH)₃ / H₃BO₃
Molecular mass: 61.8
Decomposes at 171°C
Relative density (water = 1): 1.5
Solubility in water, g/100ml at 20°C: 5.6
Vapour pressure at 20°C: negligible
Octanol/water partition coefficient as log Pow: -1.09

EXPOSURE & HEALTH EFFECTS
Routes of exposure The substance can be absorbed into the body by inhalation of dust and by ingestion. Effects of short-term exposure The substance is irritating to the respiratory tract. May cause mechanical irritation to the eyes. 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 Repeated or prolonged contact with skin may cause dermatitis. The substance may have effects on the testes. 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 dust and by ingestion.

Effects of short-term exposure
The substance is irritating to the respiratory tract. May cause mechanical irritation to the eyes. 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
Repeated or prolonged contact with skin may cause dermatitis. The substance may have effects on the testes. Animal tests show that this substance possibly causes toxicity to human reproduction or development.

OCCUPATIONAL EXPOSURE LIMITS
TLV: (inhalable fraction): 2 mg/m³, as TWA; 6 mg/m³ as STEL; A4 (not classifiable as a human carcinogen). MAK: (inhalable fraction): 10 mg/m³; peak limitation category: I(1); pregnancy risk group: B

ENVIRONMENT

NOTES

ADDITIONAL INFORMATION

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

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