ICSC 0315 - PHTHALIC ANHYDRIDE

[List of Chemicals] [Risk Notes] [Risk Phrases] [Safety Phrases] [Danger Symbols]

PHTHALIC ANHYDRIDE

ICSC: 0315
_{May 2003}

1,2-Benzenedicarboxylic acid anhydride
Phthalic acid anhydride
1,3-Isobenzofurandione

CAS No: 85-44-9
RTECS No: TI3150000
EC No: 607-009-00-4

C₈H₄O₃ / C₆H₄(CO)₂O
Molecular mass: 148.1

TYPES OF HAZARD / EXPOSURE	ACUTE HAZARDS / SYMPTOMS	PREVENTION	FIRST AID / FIRE FIGHTING
FIRE	Combustible.	NO open flames.	Water spray, foam, dry powder, 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! AVOID ALL CONTACT!
Inhalation	Cough. Sore throat. Wheezing.	Local exhaust or breathing protection.	Fresh air, rest. Half-upright position. Refer for medical attention.
Skin	Redness. Pain.	Protective gloves. Protective clothing.	Remove contaminated clothes. Rinse and then wash skin with water and soap. Refer for medical attention.
Eyes	Redness. Pain.	Safety goggles or eye protection in combination with breathing protection.	First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
Ingestion	Abdominal pain.	Do not eat, drink, or smoke during work.	Rinse mouth. Do NOT induce vomiting. Give plenty of water to drink. Refer for medical attention.

SPILLAGE DISPOSAL	PACKAGING & LABELLING
Sweep spilled substance into covered containers; if appropriate, moisten first to prevent dusting. Carefully collect remainder, then remove to safe place. Personal protection: chemical protection suit including self-contained breathing apparatus.	Xn Symbol R: 22-37/38-41-42/43 S: (2-)23-24/25-26-37/39-46	Do not transport with food and feedstuffs.

EMERGENCY RESPONSE	SAFE STORAGE
NFPA Code: H 3; F 1; R 0	Separated from combustible and reducing substances, strong oxidants, strong bases, strong acids,, food and feedstuffs. See Chemical Dangers. Ventilation along the floor. Dry. Well closed.

IMPORTANT DATA

Physical State; Appearance
WHITE LUSTROUS CRYSTALS, WITH CHARACTERISTIC ODOUR.

Physical dangers
Dust explosion possible if in powder or granular form, mixed with air.

Chemical dangers
The substance decomposes on contact with hot water producing phthalic acid. Reacts with strong oxidants, strong acids, strong bases and reducing agents. Reacts violently on heating with copper oxide or sodium nitrite, causing explosion hazard. Attacks many metals in the presence of water.

Occupational exposure limits
TLV: 1 ppm; SEN; A4 (not classifiable as a human carcinogen); (ACGIH 2003).
MAK: IIb (not established but data is available); sensitization of respiratory tract (Sa); (DFG 2002).

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

Inhalation risk
A harmful concentration of airborne particles can be reached quickly when dispersed, especially if powdered.

Effects of short-term exposure
The substance is severely 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. Repeated or prolonged inhalation exposure may cause asthma (see Notes).

PHYSICAL PROPERTIES	ENVIRONMENTAL DATA
Boiling point: 284°C (sublimes) Melting point: 131°C Density: 1.53 g/cm³ Solubility in water: slow reaction Vapour pressure, Pa at 20°C: <0.3 Relative vapour density (air = 1): 5.1 Flash point: 152°C c.c. Auto-ignition temperature: 570°C Explosive limits, vol% in air: 1.7-10.4 Octanol/water partition coefficient as log Pow: 1.6

NOTES

The substance may be transported in molten state.
The symptoms of asthma often do not become manifest until a few hours have passed and they are aggravated by physical effort. Rest and medical observation are therefore essential.
Anyone who has shown symptoms of asthma due to this substance should avoid all further contact with this substance.
For materials containing more than 0.05% of maleic anhydride the UN number is 2214, hazard class 8, packaging group III and the Transport Emergency Card is TEC (R)-80S2214.
Do NOT take working clothes home.
Card has been partly updated in October 2005. See section Occupational Exposure Limits.

IPCS
International
Programme on
Chemical Safety

Prepared in the context of cooperation between the International Programme on Chemical Safety and the European Commission
© IPCS 2004

LEGAL NOTICE

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

Updated by {ModOper}. Approved by {ModAppr}. Last update: {ModDate}