ICSC 0768 - PHTHALIC ACID

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PHTHALIC ACID

ICSC: 0768
_{October 2006}

1,2-Benzenedicarboxylic acid
ortho-Phthalic acid

CAS No: 88-99-3
RTECS No: TH9625000

C₈H₆O₄ / C₆H₄(COOH)₂
Molecular mass: 166.1

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	Finely dispersed particles form explosive mixtures in air.	Prevent deposition of dust; closed system, dust explosion-proof electrical equipment and lighting.

EXPOSURE		PREVENT DISPERSION OF DUST!
Inhalation	Cough. Sore throat.	Local exhaust.	Fresh air, rest.
Skin	Redness.	Protective gloves.	Rinse and then wash skin with water and soap.
Eyes	Redness.	Safety spectacles.	Rinse with plenty of water (remove contact lenses if easily possible).
Ingestion	Sore throat.	Do not eat, drink, or smoke during work.	Rinse mouth.

SPILLAGE DISPOSAL	PACKAGING & LABELLING
Personal protection: P1 filter respirator for inert particles. Sweep spilled substance into covered containers; if appropriate, moisten first to prevent dusting. Wash away remainder with plenty of water.	GHS classification Signal: Warning Excl mark May be harmful if swallowed Causes skin irritation Causes serious eye irritation

EMERGENCY RESPONSE	SAFE STORAGE
NFPA Code: H1; F1; R; 0

IMPORTANT DATA
Physical State; Appearance CRYSTALLINE POWDER. Physical dangers Dust explosion possible if in powder or granular form, mixed with air. Chemical dangers The solution in water is a weak acid. Occupational exposure limits TLV not established. MAK: IIb (not established but data is available) (DFG 2006).	Inhalation risk A nuisance-causing concentration of airborne particles can be reached quickly when dispersed, especially if powdered Effects of short-term exposure The substance is irritating to the eyes, the skin and the respiratory tract.

PHYSICAL PROPERTIES	ENVIRONMENTAL DATA
Melting point (decomposes): 191 °C Relative density (water = 1): 1.6 Solubility in water, g/100 ml at 25°C: 0.625 Relative vapour density (air = 1): 5.7 Flash point: 168°C c.c. Octanol/water partition coefficient as log Pow: 0.73

NOTES

IPCS
International
Programme on
Chemical Safety

Prepared in the context of cooperation between the International Programme on Chemical Safety and the European Commission
© IPCS 2006

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Updated by AS. Approved by GS. Last update: 29.01.2008