Isoamyl nitrite

  • Isopentyl nitrite
  • 3-Methylbutyl nitrite
  • Vaporole
  • 3-Methylbutanol nitrite
  • Nitrous acid, isopentyl ester
  • Nitrous acid, 3-methylbutyl ester
Formula
C5H11NO2
Structure
Description
Clear yellow liquid. Pentrating and fragrant odor.

Registry Numbers and Inventories.
CAS
110-46-3
EC (EINECS/ELINCS)
203-770-8
EC Index Number
007-020-00-9
EC Class
Highly flammable; Harmful
R 11 20/22
S 16 24 46
RTECS
NT0187500
RTECS class
Mutagen
UN (DOT)
1113
Merck
13,5139
Beilstein/Gmelin
969510
Beilstein Reference
4-01-00-01683
Swiss Giftliste 1
G-1039
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed

Properties.
Formula
C5H11NO2
Formula mass
117.15
Boiling point, °C
96
Vapor pressure, mmHg
45 (25 C)
Vapor density (air=1)
4.0
Density
0.871 g/cm3 (20 C)
Solubility in water
Insoluble
Viscosity
0.507 cp (12 C)
Surface tension
22.04 g/s2 )14 C)
Refractive index
1.3918 (20 C)
Partition coefficient, pKow
2.45
Heat of vaporization
32.5 kJ/mol
Heat of combustion
-3402 kJ/mol

Hazards and Protection.
Storage
Keep away from sources of ignition. Store in a cool place in the original container and protect from sunlight. Store in a tightly closed container. Keep under a nitrogen blanket. Flammables-area. Store protected from light and air.
Handling
Wash thoroughly after handling. Wash hands before eating. Remove contaminated clothing and wash before reuse. Use only in a well ventilated area. Ground and bond containers when transferring material. Use spark-proof tools and explosion proof equipment. Avoid contact with skin and eyes. Empty containers retain product residue, (liquid and/or vapor), and can be dangerous. Avoid ingestion and inhalation. Avoid contact with air and sunlight. Do not pressurize, cut, weld, braze, solder, drill, grind, or expose empty containers to heat, sparks or open flames.
Protection
Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.
Respirators
Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.
Small spills/leaks
Absorb spill with inert material, (e.g., dry sand or earth), then place into a chemical waste container. Avoid runoff into storm sewers and ditches which lead to waterways. Clean up spills immediately, using the appropriate protective equipment. Scoop up with a nonsparking tool, then place into a suitable container for disposal. Remove all sources of ignition. Provide ventilation.
Stability
Decomposes when in contact with air, light, or organic matter. Unstable.
Incompatibilities
Oxidizing agents, reducing agents, acids, alcohols, strong bases, light, air, antipyrene, alkaline carbonates, potassium iodide, bromide, and ferrous salts.
Decomposition
Nitrogen oxides, carbon monoxide, carbon dioxide.

Fire.
Flash Point,°C
-18
Autoignition, °C
208
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Use water spray to keep fire-exposed containers cool. Vapors may be heavier than air. They can spread along the ground and collect in low or confined areas. May polymerize explosively when involved in a fire. May be ignited by heat, sparks, and flame. Containers may explode when heated. Extinguishing media: For small fires, use dry chemical, carbon dioxide, water spray or alcohol-resistant foam. Use water spray to cool fire-exposed containers. Water may be ineffective. For large fires, use water spray, fog or alcohol-resistant foam. Do NOT use straight streams of water.
Fire potential
HIGHLY FLAMMABLE: Will be easily ignited by heat, sparks or flames.
Hazards
Vapors may form explosive mixtures with air. Vapors may travel to source of ignition and flash back. Most vapors are heavier than air. They will spread along ground and collect in low or confined areas (sewers, basements, tanks). Vapor explosion hazard indoors, outdoors or in sewers.
Combustion products
Fire may produce irritating, corrosive and/or toxic gases.

Health.
Poison_Class
2
Exposure effects
   Ingestion
May cause gastrointestinal irritation with nausea, vomiting and diarrhea. Methemoglobinemia is characterized by dizziness, drowsiness, headache, breath shortness, cyanosis with bluish skin, rapid heart rate and chocolate-brown colored blood.
   Inhalation
May cause respiratory tract irritation. May cause dizziness, incoordination, and unconsciousness. Methemoglobinemia is characterized by dizziness, drowsiness, headache, breath shortness, cyanosis with bluish skin, rapid heart rate and chocolate-brown blood.
   Skin
May cause skin irritation.
   Eyes
Causes eye irritation.

First aid
 
   Ingestion
Do NOT induce vomiting. If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid immediately.
   Inhalation
Get medical aid immediately. Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen.
   Skin
Immediately flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Get medical aid if irritation develops or persists. Wash clothing before reuse.
   Eyes
Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.

Transport.
UN number
1113
Response guide
Hazard class
3
Packing Group
II
 
USCG CHRIS Code
ANI
 
HS Code
2920 90 85