Isobutyl nitrite

  • Nitrous acid, 2-methylpropyl ester
  • Blackjack
Formula
(CH3)2CHCH2NO2
Structure
Description
Clear colorless to pale yellow liquid.
Uses
Used to a limited extent in industry as intermediates in chemical syntheses aliphatic nitrites.

Registry Numbers and Inventories.
CAS
542-56-3
EC (EINECS/ELINCS)
208-819-7
EC Index Number
007-017-00-2
EC Class
Highly flammable; Harmful
R 11 20/22
S 16 24 26
RTECS
RA0805000
RTECS class
Tumorigen; Mutagen; Human Data
UN (DOT)
1992
Merck
13,5165
Beilstein/Gmelin
1699518
Beilstein Reference
4-01-00-01595
Swiss Giftliste 1
G-42620
Canada DSL/NDSL
NDSL
US TSCA
Listed

Properties.
Formula
C4H9NO2
Formula mass
103.12
Boiling point, °C
67
Vapor pressure, mmHg
10
Density
0.89445 g/cm3 (0 C)
Solubility in water
Slightly soluble
Refractive index
1.36932 (22.1 C)

Hazards and Protection.
Storage
Keep away from heat, sparks, and flame. Refrigerator/flammables.
Handling
Empty containers retain product residue, (liquid and/or vapor), and can be dangerous. Avoid contact with heat, sparks and flame. Do not pressurize, cut, weld, braze, solder, drill, grind, or expose empty containers to heat, sparks or open flames.
Protection
Eyes: Wear chemical goggles. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to minimize contact with skin.
Respirators
A respiratory protection program that meets OSHA's 29 CFR 1910.134 and ANSI Z88.2 requirements or European Standard EN 149 must be followed whenever workplace conditions warrant a respirator's use.
Small spills/leaks
Clean up spills immediately, using the appropriate protective equipment.
Stability
Stable under normal temperatures and pressures.
Incompatibilities
If mixed with reducing agents, including hydrides, sulfides, nitrides, ammonium salts, cyanides, and many fuels.
Decomposition
Irritating and toxic fumes and gases.

Fire.
Flash Point,°C
-21
Fire fighting
Fires involving this material can be controlled with a dry chemical, carbon dioxide or Halon extinguisher.
Fire potential
This chemical is flammable.
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 and poison hazard indoors, outdoors or in sewers.
Combustion products
Fire will produce irritating, corrosive and/or toxic gases.

Health.
Exposure limit(s)
C 1 ppm TLV
Carcinogin
G-A3, CP65
Poison_Class
2
Exposure effects
Throbbing headache is common. Seizures have been reported following severe intoxication. Behavioral deficits were observed in the adult offspring of rats who received sodium nitrite prenatally.
   Ingestion
Initial effects of ingestion are gastric irritation with nausea, vomiting and abdominal pain.
   Inhalation
Respiratory depression and cyanosis may be noted, due to methemoglobinemia.
   Skin
Cyanosis that minimally responds to oxygen therapy may be noted, and is indicative of probable methemoglobinemia.
   Eyes
Visual field defects have been reported in sodium nitrite poisoning.

First aid
 
   Ingestion
If victim is conscious and alert, give 2-4 cupfuls of milk or water. 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
Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Remove contaminated clothing and shoes.
   Eyes
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
1992
Response guide
Hazard class
3
Packing Group
I; II; III