International Chemical Safety Cards 4-NITROBENZOIC ACID ICSC: 1684 para-Nitrobenzoic acid para-Carboxynitrobenzene C7H5NO4 / HOOCC6H4NO2 Molecular mass: 167.1 ICSC #    1684 CAS #     62-23-7 RTECS # DH5075000 April 10, 2008 Validated TYPES OF HAZARD/ EXPOSURE ACUTE HAZARDS/ SYMPTOMS PREVENTION FIRST AID/ FIRE FIGHTING FIRE Combustible. Gives off irritating or toxic fumes (or gases) in a fire. NO open flames. Foam. Dry powder. Carbon dioxide. EXPLOSION Risk of explosion in contact with potassium hydroxide . EXPOSURE PREVENT DISPERSION OF DUST!  •INHALATION Cough. Local exhaust. Fresh air, rest.  •SKIN Redness. Protective gloves. Remove contaminated clothes. 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 Nausea. Vomiting. Rinse mouth. Refer for medical attention. SPILLAGE DISPOSAL STORAGE PACKAGING & LABELLING Personal protection: particulate filter adapted to the airborne concentration of the substance. Sweep spilled substance into covered containers. Separated from strong oxidants, bases and strong reducing agents . Signal: Warning Excl mark Causes skin irritation Causes eye irritation May cause respiratory irritation SEE IMPORTANT INFORMATION ON BACK ICSC: 1684 Prepared in the context of cooperation between the International Programme on Chemical Safety & the Commission of the European Communities (C) IPCS CEC 1994. No modifications to the International version have been made except to add the OSHA PELs, NIOSH RELs and NIOSH IDLH values.

International Chemical Safety Cards 4-NITROBENZOIC ACID ICSC: 1684 I M P O R T A N T D A T A PHYSICAL STATE; APPEARANCE: WHITE TO YELLOW CRYSTALS PHYSICAL DANGERS: Dust explosion possible if in powder or granular form, mixed with air. If dry, it can be charged electrostatically by swirling, pneumatic transport, pouring, etc. CHEMICAL DANGERS: Reacts with bases , reducing agents and strong oxidants . The substance decomposes on heating and on burning producing toxic fumes including nitrogen oxides . OCCUPATIONAL EXPOSURE LIMITS: TLV not established. MAK not established. ROUTES OF EXPOSURE: The substance can be absorbed into the body by ingestion. 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 respiratory tract and the skin . EFFECTS OF LONG-TERM OR REPEATED EXPOSURE: Animal tests show that this substance possibly causes toxicity to human reproduction or development. PHYSICAL PROPERTIES Boiling point (decomposes): 350°C Melting point: 242°C Density: 1.61 g/cm³ Solubility in water, g/100 ml at 25°C: 0.03 (poor) Vapour pressure, Pa at 50°C: 1 Flashpoint: 201°C c.c. Auto-ignition temperature: 300°C Explosive limits, vol% in air: 1.8 - ? Octanol/water partition coefficient as log Pow: 1.89 ENVIRONMENTAL DATA N O T E S ADDITIONAL INFORMATION ICSC: 1684 4-NITROBENZOIC ACID (C) IPCS, CEC, 1994

IMPORTANT LEGAL NOTICE: Neither NIOSH, the CEC or the IPCS nor any person acting on behalf of NIOSH, the CEC or the IPCS is responsible for the use which might be made of this information. This card contains the collective views of the IPCS Peer Review Committee and may not reflect in all cases all the detailed requirements included in national legislation on the subject. The user should verify compliance of the cards with the relevant legislation in the country of use. The only modifications made to produce the U.S. version is inclusion of the OSHA PELs, NIOSH RELs and NIOSH IDLH values.