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PYROGALLIC ACID ICSC: 0770
Date of Peer Review: March 1996

1,2,3-Benzenetriol
1,2,3-Trihydroxybenzene
Pyrogallol
CAS # 87-66-1 C6H6O3 / C6H3(OH)3
RTECS # UX2800000 Molecular mass: 126.1
UN #
EC # 604-009-00-6
TYPES OF HAZARD / EXPOSURE ACUTE HAZARDS / SYMPTOMS PREVENTION FIRST AID / FIRE FIGHTING
FIRE Combustible.
NO open flames.
Powder, alcohol-resistant foam, water spray, carbon dioxide.
EXPLOSION


EXPOSURE
PREVENT DISPERSION OF DUST! STRICT HYGIENE!

Inhalation Cough. Sore throat.
Local exhaust or breathing protection.
Fresh air, rest. Refer for medical attention.
Skin Redness. Pain.
Protective gloves. Protective clothing.
Remove contaminated clothes. Rinse skin with plenty of water or shower.
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 Diarrhoea. Vomiting. Weakness. Hypothermia. Fine temors. Muscular incoordination. Loss of reflexes. Coma. Asphysia.
Do not eat, drink, or smoke during work.
Rinse mouth. Refer for medical attention.
SPILLAGE DISPOSAL PACKAGING & LABELLING
Personal protection: P2 filter respirator for harmful particles. Sweep spilled substance into containers; if appropriate, moisten first to prevent dusting. Carefully collect remainder, then remove to safe place. Do NOT let this chemical enter the environment.
EU Classification
Symbol: Xn
R: 20/21/22-68-52/53
S: (2-)-36/37-61
UN Classification

EMERGENCY RESPONSE STORAGE

Separated from oxidants, 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 1999

SEE IMPORTANT INFORMATION ON BACK
PYROGALLIC ACID ICSC: 0770
IMPORTANT DATA
PHYSICAL STATE; APPEARANCE:
WHITE CRYSTALLINE POWDER, TURNS GREY ON EXPOSURE TO LIGHT AND AIR.

CHEMICAL DANGERS:
The solution in water is a weak acid. Reacts with oxidants and bases.

OCCUPATIONAL EXPOSURE LIMITS:
TLV not established.
ROUTES OF EXPOSURE:
The substance can be absorbed into the body by inhalation and by ingestion.

INHALATION RISK:
Evaporation at 20C is negligible; a harmful concentration of airborne particles can, however, be reached quickly.

EFFECTS OF SHORT-TERM EXPOSURE:
The substance is irritating to the eyes, the skin and the respiratory tract.

EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
Repeated or prolonged contact may cause skin sensitization. May cause genetic damage in humans.
PHYSICAL PROPERTIES
Boiling point: 309C
Melting point: 131-134C
Density: 1.45 g/cm
Solubility in water: good (60 g/100 ml at 20C)
Vapour pressure, kPa at 168C: 1.33
ENVIRONMENTAL DATA
The substance is harmful to aquatic organisms.
NOTES
The cards has been partly updated in April 2005. See sections Environmental Data, EU classification
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
IPCS, CEC 1999