Acetaldehyde oxime

  • Acetaldoxime
Formula
CH3CH NOH
Structure
Description
A colorless liquid with a pungent odor.
Uses
Aldoximes, such as acetaldehyde oxime, are used as intermediates in chemical synthesis.

Registry Numbers and Inventories.
CAS
107-29-9
EC (EINECS/ELINCS)
203-479-6
EC Class
flammable
R 10 22 36/38
RTECS
AB2975000
RTECS class
Mutagen
UN (DOT)
2332
Merck
13,43
Beilstein/Gmelin
1209252
Beilstein Reference
4-01-00-03121
Swiss Giftliste 1
G-9296
Canada DSL/NDSL
NDSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed

Properties.
Formula
C2H5NO
Formula mass
59.07
Melting point, °C
47
Boiling point, °C
115
Vapor pressure, mmHg
13
Density
0.969 g/cm3 (17 C)
Solubility in water
Soluble
Refractive index
1.424 (20 C)
pKa/pKb
11.82 (pKa)
Partition coefficient, pKow
-0.13
Heat of vaporization
38.9 kJ/mol

Hazards and Protection.
Storage
Keep away from heat, sparks, and flame. Refrigerator/flammables.
Handling
Wash thoroughly after handling. Wash hands before eating. Use only in a well ventilated area. Avoid contact with eyes, skin, and clothing. Empty containers retain product residue, (liquid and/or vapor), and can be dangerous. Avoid contact with heat, sparks and flame. Avoid ingestion and inhalation. 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. Clean up spills immediately, using the appropriate protective equipment.
Stability
Stable under normal temperatures and pressures.
Incompatibilities
Strong oxidizing agents; strong acids.
Decomposition
Nitrogen oxides, carbon monoxide, irritating and toxic fumes and gases, carbon dioxide, nitrogen.

Fire.
Flash Point,°C
40
Upper exp. limit, %
50
Lower exp. limit, %
4.2
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. To extinguish fire, use water, dry chemical, chemical foam, or alcohol-resistant foam. Use agent most appropriate to extinguish fire.
Fire potential
HIGHLY 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 hazard indoors, outdoors or in sewers. May polymerize explosively when heated or involved in a fire. Runoff to sewer may create fire or explosion hazard. Containers may explode when heated. Many liquids are lighter than water.
Combustion products
When heated to decomposition it emits toxic fumes of oxides of nitrogen.

Health.
Poison_Class
3
Exposure effects
   Ingestion
Harmful if swallowed. May cause gastrointestinal irritation with nausea, vomiting and diarrhea.
   Inhalation
Harmful if inhaled. May cause respiratory tract irritation.
   Skin
May cause skin irritation. Harmful if absorbed through the skin.
   Eyes
May cause eye irritation.

First aid
 
   Ingestion
Get medical aid immediately. Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water.
   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.
   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
2332
Response guide
Hazard class
3
Packing Group
III
 
HS Code
2928 00 90
 
Std. Transport #
4909101