n-BUTYL CHLOROFORMATE 1593
October 2005
CAS No: 592-34-7 Butyl chlorocarbonate
Butyl chloroformate
UN No: 2743
Chloroformic acid butyl ester
EC No: 607-138-00-6
Carbonochloridic acid, butyl ester
C5H9ClO 2 / CH3(CH2)3OCOCl
Molecular mass: 136.6
TYPES OF
ACUTE HAZARDS/SYMPTOMS PREVENTION FIRST AID/FIRE FIGHTING
HAZARD/
EXPOSURE
FIRE Flammable. Gives off irritating or NO open flames, NO sparks, and NO NO water. Dry powder. Carbon
toxic fumes (or gases) in a fire. smoking. dioxide. Alcohol-resistant foam.
EXPLOSION Above 30/C explosive vapour/air Above 30/C use a closed system, In case of fire: cool drums, etc., by
mixtures may be formed. ventilation, and explosion-proof spraying with water but avoid contact
electrical equipment. of the substance with water.
EXPOSURE STRICT HYGIENE! IN ALL CASES CONSULT A
DOCTOR!
Inhalation Sore throat. Burning sensation. Ventilation, local exhaust, or breathing Fresh air, rest. Half-upright position.
Cough. Laboured breathing. protection. Artificial respiration may be needed.
Shortness of breath. Symptoms Refer for medical attention.
may be delayed (see Notes).
Skin Redness. Pain. Skin burns. Protective gloves. Protective clothing. Remove contaminated clothes.
Rinse skin with plenty of water or
shower. Refer for medical attention.
Eyes Redness. Pain. Severe deep burns. Face shield or eye protection in First rinse with plenty of water for
combination with breathing several minutes (remove contact
protection. lenses if easily possible), then take to
a doctor.
Ingestion Abdominal pain. Burning sensation. Do not eat, drink, or smoke during Rinse mouth. Do NOT induce
Shock or collapse. work. Wash hands before eating. vomiting. Give plenty of water to
drink. Refer for medical attention.
SPILLAGE DISPOSAL PACKAGING & LABELLING
Evacuate danger area! Consult an expert! Personal T Symbol Do not transport with food and
protection: chemical protection suit including R: 10-23-34 feedstuffs. Unbreakable packaging;
self-contained breathing apparatus. Do NOT let this S: (1/2-)26-36-45 put breakable packaging into closed
chemical enter the environment. Collect leaking liquid UN Hazard Class: 6.1 unbreakable container.
in sealable dry plastic containers. Absorb remaining UN Subsidiary Risks: 3 and 8
liquid in dry sand or inert absorbent and remove to UN Pack Group: II
safe place.
EMERGENCY RESPONSE SAFE STORAGE
Transport Emergency Card: TEC (R)-61GTFC-II Fireproof. Dry. Well closed. Provision to contain effluent from fire
extinguishing. Separated from food and feedstuffs. Store in an area without
drain or sewer access.
Prepared in the context of cooperation between the International
IPCS Programme on Chemical Safety and the European Commission 漏
IPCS 2005
International
Programme on
SEE IMPORTANT INFORMATION ON THE BACK.
Chemical Safety
1593 n-BUTYL CHLOROFORMATE
IMPORTANT DATA
Physical State; Appearance Routes of exposure
COLOURLESS LIQUID, WITH PUNGENT ODOUR. The substance can be absorbed into the body by inhalation of its
vapour and by ingestion.
Chemical dangers
Inhalation risk
The substance decomposes on burning producing toxic and
corrosive fumes. Reacts with water or moisture producing A harmful contamination of the air will be reached very quickly on
hydrogen chloride. evaporation of this substance at 20/C.
Occupational exposure limits Effects of short-term exposure
TLV not established. The substance is corrosive to the eyes, the skin and the
MAK: 0.2 ppm, 1.1 mg/m 3; Peak limitation category: I(2); respiratory tract. Corrosive on ingestion. Inhalation of the vapour
Pregnancy risk group: C; (DFG 2005). may cause lung oedema (see Notes). The effects may be
delayed.
PHYSICAL PROPERTIES
Boiling point: 138-145/C Relative vapour density (air = 1): 4.72
Melting point: <-70/C Relative density of the vapour/air-mixture at 20/C (air = 1): 1.02
Density: 1.06 g/cm3 Flash point: 30/C c.c.
Solubility in water: reaction Auto-ignition temperature: 285/C
Vapour pressure, kPa at 20/C: 0.72 Octanol/water partition coefficient as log Pow: 1.61 (calculated)
ENVIRONMENTAL DATA
The substance is toxic to aquatic organisms.
NOTES
Reacts violently with fire extinguishing agents such as water.
The symptoms of lung oedema often do not become manifest until a few hours have passed and they are aggravated by physical effort.
Rest and medical observation is therefore essential.
Immediate administration of an appropriate inhalation therapy by a doctor or a person authorized by him/her, should be considered.
ADDITIONAL INFORMATION
Neither the EC nor the IPCS nor any person acting on behalf of the EC or the IPCS is responsible
LEGAL NOTICE for the use which might be made of this information
漏IPCS 2005
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