Acetic [-{2}-H]acid

  • Acetic acid d
Formula
[2H]C2H3O2
Structure
Description
Clear, colorless liquid.

Registry Numbers and Inventories.
CAS
758-12-3
EC (EINECS/ELINCS)
212-059-1
EC Class
flammable, corrosive
R 10 35
S 23.2 26 45
UN (DOT)
2789
Beilstein/Gmelin
1739249
Beilstein Reference
4-02-00-00121

Properties.
Formula
C2H3DO2
Formula mass
61.06
Melting point, °C
17
Boiling point, °C
116
Vapor pressure, mmHg
14 (25 C)
Density
1.05 g/cm3
Solubility in water
Very soluble
Refractive index
1.3709 (20 C)
pKa/pKb
4.79 (pKa)
Partition coefficient, pKow
-0.29
Heat of vaporization
23.7 kJ/mol

Hazards and Protection.
Storage
Keep away from heat, sparks, and flame. Keep away from sources of ignition. Store in a cool, dry place. Flammables-area.
Handling
Wash thoroughly after handling. Wash hands before eating. Use only in a well ventilated area. Do not get on skin or in eyes. Do not ingest or inhale.
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 and clothing 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. Remove all sources of ignition.
Disposal code
3
Stability
Stable under normal temperatures and pressures.
Incompatibilities
Strong oxidants and bases.
Decomposition
Carbon monoxide, carbon dioxide.

Fire.
Flash Point,°C
37
Autoignition, °C
485
Upper exp. limit, %
19.9
Lower exp. limit, %
4
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Extinguishing media: Use alcohol foam, carbon dioxide, or water spray when fighting fires involving this material.
Fire potential
Flammable/combustible material. May be 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 will produce irritating, corrosive and/or toxic gases.

Health.
Exposure effects
   Ingestion
May cause severe and permanent damage to the digestive tract. Causes severe digestive tract burns with abdominal pain, vomiting, and possible death.
   Inhalation
May cause severe irritation of the respiratory tract with sore throat, coughing, shortness of breath and delayed lung edema. Causes chemical burns to the respiratory tract.
   Skin
Causes severe burns with delayed tissue destruction.
   Eyes
Causes severe eye burns.

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. SPEED IS ESSENTIAL. A DOCTOR MUST BE NOTIFIED AT ONCE.
   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 immediately. Immediately 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
2789
Response guide
Hazard class
8
Packing Group
II
 
HS Code
2845 90 10