BORIC ACID (ICSC)

BORIC ACID	ICSC: 0991

Date of peer-review: October 1994

Boracic acid
Orthoboric acid

CAS #	10043-35-3	H₃BO₃
RTECS #	ED4550000	Molecular mass: 61.8
UN #
EC #

TYPES OF HAZARD / EXPOSURE	ACUTE HAZARDS / SYMPTOMS	PREVENTION	FIRST AID / FIRE FIGHTING
FIRE	Not combustible. Gives off irritating or toxic fumes (or gases) in a fire.		In case of fire in the surroundings: all extinguishing agents allowed.
EXPLOSION

EXPOSURE		PREVENT DISPERSION OF DUST!
Inhalation	Cough. Sore throat.	Local exhaust or breathing protection.	Fresh air, rest.
Skin	MAY BE ABSORBED! Redness. May be absorbed through injured skin.	Protective gloves.	Remove contaminated clothes. Rinse and then wash skin with water and soap. Refer for medical attention.
Eyes	Redness. Pain.	Safety spectacles.	First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
Ingestion	Abdominal pain. Convulsions. Diarrhoea. Nausea. Vomiting. Skin rash.	Do not eat, drink, or smoke during work.	Rinse mouth. Refer for medical attention.

SPILLAGE DISPOSAL

PACKAGING & LABELLING

Sweep spilled substance into containers; if appropriate, moisten first to prevent dusting. Wash away remainder with plenty of water (extra personal protection: P2 filter respirator for harmful particles).

EU Classification
UN Classification

EMERGENCY RESPONSE

STORAGE

Separated from strong bases.

IPCS
International
Programme on
Chemical Safety

Prepared in the context of cooperation between the International Programme on Chemical Safety and the Commission of the European Communities © IPCS, CEC 2001

SEE IMPORTANT INFORMATION ON BACK

BORIC ACID

ICSC: 0991

IMPORTANT DATA

PHYSICAL STATE; APPEARANCE:
ODOURLESS, COLOURLESS CRYSTALS OR WHITE POWDER.

CHEMICAL DANGERS:
The substance decomposes on heating above 100°C producing water and irritant boric anhydride. The solution in water is a weak acid. Incompatible with alkali carbonates and hydroxides.

OCCUPATIONAL EXPOSURE LIMITS:
TLV not established.

ROUTES OF EXPOSURE:
The substance can be absorbed into the body by inhalation of its aerosol and by ingestion.

INHALATION RISK:
Evaporation at 20°C is negligible; a nuisance-causing concentration of airborne particles can, however, be reached quickly when dispersed.

EFFECTS OF SHORT-TERM EXPOSURE:
The substance irritates the eyes, the skin and the respiratory tract. The substance may cause effects on the gastrointestinal tract, liver and kidneys.

EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
Repeated or prolonged contact with skin may cause dermatitis. Animal tests show that this substance possibly causes toxic effects upon human reproduction.

PHYSICAL PROPERTIES

Melting point (decomposes): 171°C
Relative density (water = 1): 1.4
Solubility in water, g/100 ml: 5.6
Vapour pressure, kPa at 20°C: negligible

ENVIRONMENTAL DATA

NOTES

Borofax is a trade name.

ADDITIONAL INFORMATION

LEGAL NOTICE

Neither the CEC nor the IPCS nor any person acting on behalf of the CEC or the IPCS is responsible for the use which might be made of this information

    See Also:
       Toxicological Abbreviations
       BORIC ACID (JECFA Evaluation)