IPCS INCHEM Home
ISOAMYL NITRITEICSC: 1012
November 1998
CAS #: 110-46-3Amyl nitrite
Nitrous acid, 3-methyl butyl ester
3-Methylbutanol nitrite
Isopentyl alcohol nitrite
UN #: 1113
EINECS #: 203-770-8

  ACUTE HAZARDS PREVENTION FIRE FIGHTING
FIRE & EXPLOSION Highly flammable. Many reactions may cause fire or explosion. Heating will cause rise in pressure with risk of bursting.  Vapour/air mixtures are explosive.  NO open flames, NO sparks and NO smoking.  Closed system, ventilation, explosion-proof electrical equipment and lighting. Do NOT use compressed air for filling, discharging, or handling.  Use water spray, alcohol-resistant foam.  In case of fire: keep drums, etc., cool by spraying with water. Combat fire from a sheltered position. 

 PREVENT GENERATION OF MISTS! STRICT HYGIENE! IN ALL CASES CONSULT A DOCTOR! 
  SYMPTOMS ACUTE HAZARDS FIRST AID
Inhalation Blue lips, fingernails and skin. Confusion. Convulsions. Dizziness. Headache. Sweating. Nausea. Unconsciousness. Vomiting. Flushing of the face. Symptoms may be delayed. See Notes.  Use ventilation, local exhaust or breathing protection.  Artificial respiration may be needed. Refer for medical attention. 
Skin MAY BE ABSORBED!  Protective gloves. Protective clothing.  Remove contaminated clothes. Rinse and then wash skin with water and soap. Refer for medical attention . 
Eyes   Wear safety spectacles, face shield or eye protection in combination with breathing protection.  First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention. 
Ingestion See Inhalation.  Do not eat, drink, or smoke during work. Wash hands before eating.  Rinse mouth. Refer for medical attention . 

SPILLAGE DISPOSAL CLASSIFICATION & LABELLING
Evacuate danger area! Consult an expert! Personal protection: chemical protection suit including self-contained breathing apparatus. Ventilation. Remove all ignition sources. Collect leaking and spilled liquid in sealable containers as far as possible. Absorb remaining liquid in sand or inert absorbent. Then store and dispose of according to local regulations. Do NOT wash away into sewer. 

According to UN GHS Criteria

 

Transportation
UN Classification
UN Hazard Class: 3; UN Pack Group: II 

STORAGE
Fireproof. Separated from strong oxidants. Cool. Well closed. 
PACKAGING
Airtight.
Do not transport with food and feedstuffs. 
ISOAMYL NITRITE ICSC: 1012
PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
YELLOW LIQUID WITH CHARACTERISTIC ODOUR. 

Physical dangers
The vapour is heavier than air and may travel along the ground; distant ignition possible. 

Chemical dangers
May explode on heating. Decomposes on burning. This produces toxic gases including nitrogen oxides. Reacts with oxidants. This generates fire and explosion hazard. 

Formula: C5H11N02
Molecular mass: 117.2
Boiling point: 97-99°C
Relative density (water = 1): 0.875
Solubility in water: none
Vapour pressure, kPa at 20°C: 3.5
Relative vapour density (air = 1): 4.0
Relative density of the vapour/air-mixture at 20°C (air = 1): 1.1
Flash point: 3°C
Auto-ignition temperature: 209°C  


EXPOSURE & HEALTH EFFECTS

Routes of exposure
The substance can be absorbed into the body by inhalation and through the skin. 

Effects of short-term exposure
The substance may cause effects on the blood and cardiovascular system. This may result in cardiac disorders and the formation of methaemoglobin. The effects may be delayed. Medical observation is indicated. 

Inhalation risk
A harmful contamination of the air can be reached rather quickly on evaporation of this substance at 20°C. 

Effects of long-term or repeated exposure
 


Occupational exposure limits
 

ENVIRONMENT
 

NOTES
Combustion in a confined space may turn into detonation.
Depending on the degree of exposure, periodic medical examination is indicated.
Specific treatment is necessary in case of poisoning with this substance; the appropriate means with instructions must be available. 

ADDITIONAL INFORMATION
  EC Classification
Symbol: F, Xn; R: 11-20/22; S: (2)-16-24-46 

All rights reserved. The published material is being distributed without warranty of any kind, either expressed or implied. Neither ILO nor WHO nor the European Commission shall be responsible for the interpretation and use of the information contained in this material.
    See Also:
       Toxicological Abbreviations