International Chemical Safety Cards BENZALDEHYDE ICSC: 0102 Artificial almond oil Almond artificial essential oil Benzoic aldehyde Benzenecarbonal C6H5CHO Molecular mass: 106.1 ICSC #    0102 CAS #     100-52-7 RTECS # CU4375000 UN #        1990 EC #         605-012-00-5 October 25, 1995 Peer reviewed TYPES OF HAZARD/ EXPOSURE ACUTE HAZARDS/ SYMPTOMS PREVENTION FIRST AID/ FIRE FIGHTING FIRE Combustible. NO open flames, NO sparks, and NO smoking. Powder, water spray, foam, carbon dioxide. EXPLOSION Above 62°C explosive vapour/air mixtures may be formed. Above 62°C use a closed system, ventilation. Do NOT use compressed air for filling, discharging, or handling. In case of fire: keep drums, etc., cool by spraying with water. EXPOSURE PREVENT GENERATION OF MISTS! STRICT HYGIENE!  •INHALATION Convulsions. Cough. Dizziness. Headache. Nausea. Sore throat. Vomiting. Ventilation, local exhaust, or breathing protection. Fresh air, rest.  •SKIN Redness. Protective gloves. Protective clothing. Remove contaminated clothes. Rinse skin with plenty of water or shower.  •EYES Redness. Pain. Safety spectacles or face shield. First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.  •INGESTION Nausea (further see Inhalation). Do not eat, drink, or smoke during work. Rinse mouth. Induce vomiting (ONLY IN CONSCIOUS PERSONS!). Rest. SPILLAGE DISPOSAL STORAGE PACKAGING & LABELLING Collect leaking liquid in sealable containers. Absorb remaining liquid in sand or inert absorbent and remove to safe place. (Extra personal protection: A filter for organic vapours). Separated from incompatible materials (see Chemical Dangers). Well closed. Ventilation along the floor. Xn symbol R: 22 S: 2-24 UN Hazard Class: 9 UN Packing Group: III SEE IMPORTANT INFORMATION ON BACK ICSC: 0102 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 BENZALDEHYDE ICSC: 0102 I M P O R T A N T D A T A PHYSICAL STATE; APPEARANCE: COLOURLESS TO YELLOW VISCOUS LIQUID , WITH CHARACTERISTIC ODOUR. PHYSICAL DANGERS: CHEMICAL DANGERS: The substance can form explosive peroxides under special conditions. Reacts violently with oxidants, aluminium, iron, bases and phenol causing fire and explosion hazard. May self-ignite if absorbed in combustible material with large surface area. OCCUPATIONAL EXPOSURE LIMITS: TLV not established. MAK not established. ROUTES OF EXPOSURE: The substance can be absorbed into the body by inhalation, through the skin and by ingestion. INHALATION RISK: No indication can be given about the rate in which a harmful concentration in the air is reached on evaporation of this substance at 20°C. EFFECTS OF SHORT-TERM EXPOSURE: The substance irritates the eyes, the skin and the respiratory tract. Exposure could cause lowering of consciousness. EFFECTS OF LONG-TERM OR REPEATED EXPOSURE: Repeated or prolonged contact may cause skin sensitization. PHYSICAL PROPERTIES Boiling point: 179°C Melting point: -26°C Relative density (water = 1): 1.05 Solubility in water, g/100 ml: poor Vapour pressure, Pa at 26°C: 130 Relative vapour density (air = 1): 3.65 Flash point: 62°C Auto-ignition temperature: 190°C Explosive limits, vol% in air: 1.4-13.5 Octanol/water partition coefficient as log Pow: 1.48 ENVIRONMENTAL DATA The substance is harmful to aquatic organisms. N O T E S Freezing point: -56°C. The relation between odour and the occupational exposure limit cannot be indicated. Rinse contaminated clothes (fire hazard) with plenty of water. Check for peroxides prior to distillation; eliminate if found. Transport Emergency Card: TEC (R)-90S1990 NFPA Code: H2; F2; R0 ADDITIONAL INFORMATION ICSC: 0102 BENZALDEHYDE (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.