ISOBUTYL NITRITE 1651
April 2006
CAS No: 542-56-3 Nitrous acid, 2-methylpropyl ester
RTECS No: RA0805000 Nitrous acid, isobutyl ester
UN No: 1992 C4H9NO2 / (CH3)2CHCH2NO2
EC No: 007-017-00-2 Molecular mass: 103.1
TYPES OF
ACUTE HAZARDS/SYMPTOMS PREVENTION FIRST AID/FIRE FIGHTING
HAZARD/
EXPOSURE
FIRE Highly flammable. Gives off irritating or NO open flames, NO sparks, and NO Dry powder. Carbon dioxide.
toxic fumes (or gases) in a fire. smoking.
EXPLOSION Vapour/air mixtures are explosive. Closed system, ventilation, In case of fire: keep drums, etc., cool by
explosion-proof electrical equipment and spraying with water.
lighting. Do NOT use compressed air for
filling, discharging, or handling.
EXPOSURE AVOID ALL CONTACT!
Inhalation Sore throat. Headache. Dizziness. Blue Ventilation, local exhaust, or breathing Fresh air, rest. Artificial respiration may
lips or finger nails. Blue skin. Nausea. protection. be needed. Refer for medical attention.
Confusion. Convulsions.
Unconsciousness. Symptoms may be
delayed (see Notes).
Skin Protective gloves. Protective clothing. Rinse and then wash skin with water and
soap.
Eyes Safety spectacles. Rinse with plenty of water (remove
contact lenses if easily possible).
Ingestion (See Inhalation). Do not eat, drink, or smoke during work. Rinse mouth. Give a slurry of activated
Wash hands before eating. charcoal in water to drink. Refer for
medical attention.
SPILLAGE DISPOSAL PACKAGING & LABELLING
Personal protection: self-contained breathing apparatus. EU classification Do not transport with food and feedstuffs.
Evacuate danger area! Consult an expert! Ventilation. F Symbol
Remove all ignition sources. Collect leaking liquid in Xn Symbol
sealable containers. Absorb remaining liquid in sand or inert R: 11-20/22-45-68
absorbent and remove to safe place. Do NOT wash away S: 53-45
into sewer. UN classification
UN Hazard Class: 3
UN Subsidiary Risks: 6.1
UN Pack Group: III
GHS classification
Signal: Danger
Flame-Skull-Health haz
Highly flammable liquid and vapour
Harmful if swallowed
Toxic if inhaled vapour
Suspected of causing cancer
Causes damage to blood
EMERGENCY RESPONSE SAFE STORAGE
Transport Emergency Card: TEC (R)-30GTF1-III Fireproof. Separated from acids. Well closed.
Prepared in the context of cooperation between the International
IPCS Programme on Chemical Safety and the European Commission 漏
IPCS 2006
International
Programme on
SEE IMPORTANT INFORMATION ON THE BACK.
Chemical Safety
1651 ISOBUTYL NITRITE
IMPORTANT DATA
Physical State; Appearance Routes of exposure
COLOURLESS LIQUID. The substance can be absorbed into the body by inhalation and by
ingestion.
Physical dangers
The vapour is heavier than air and may travel along the ground; distant Inhalation risk
ignition possible. A harmful contamination of the air can be reached very quickly on
evaporation of this substance at 20/C.
Chemical dangers
The substance decomposes on burning producing toxic gases including Effects of short-term exposure
nitrogen oxides. The substance may cause effects on the blood and cardiovascular
system resulting in cardiac disorders and the formation of
Occupational exposure limits methaemoglobin. The effects may be delayed. Medical observation is
TLV: (Ceiling value) 1 ppm, A3 (confirmed animal carcinogen with indicated. Exposure at high levels may result in death. See Notes.
unknown relevance to humans); BEI issued (ACGIH 2006).
MAK not established. Effects of long-term or repeated exposure
This substance is possibly carcinogenic to humans.
PHYSICAL PROPERTIES
Boiling point: 67/C Relative vapour density (air = 1): 3.56
Relative density (water = 1): 0.87 Relative density of the vapour/air-mixture at 20/C (air = 1): 1.19
Solubility in water: very poor Flash point: -21/C
Vapour pressure, kPa at 20/C: 1.3 Explosive limits, vol% in air: 1.2 - 26.9
ENVIRONMENTAL DATA
NOTES
Depending on the degree of exposure, periodic medical examination is suggested.
Specific treatment is necessary in case of poisoning with this substance; the appropriate means with instructions must be available.
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 2006
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