[-{2}-H]Formic [-{2}-]acid

  • Formic-d acid d
Formula
[2H]2CO2
Structure
Description
Clear, colorless liquid.

Registry Numbers and Inventories.
CAS
920-42-3
EC (EINECS/ELINCS)
213-057-3
EC Class
corrosive
S 23.2 26 36/37/39 45
UN (DOT)
1779
Beilstein/Gmelin
NA
New Zealand
Listed

Properties.
Formula
CD2O2
Formula mass
48.04
Melting point, °C
5.9
Boiling point, °C
101
Vapor pressure, mmHg
35 (25 C)
Density
1.27 g/cm3
Solubility in water
Very soluble
pKa/pKb
3.74 (pKa)
Partition coefficient, pKow
-0.54
Heat of vaporization
22.7 kJ/mol

Hazards and Protection.
Storage
Do not store near combustible materials. Store in a cool, dry place. Store in a tightly closed container. Keep under a nitrogen blanket. Refrigerator (approx 4 C).
Handling
Contents may develop pressure upon prolonged storage. Do not breathe dust, vapor, mist, or gas. Do not get in eyes, on skin, or on clothing. Use only in a chemical fume hood.
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 minimize contact with skin.
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.
Disposal code
4
Stability
Stable under normal temperatures and pressures.
Incompatibilities
Strong oxidizing agents - strong bases - finely powered metals - concentrated sulphuric acid - metals - lyes - aluminium - organic nitro compounds - non-metal oxides - hydrated thallium nitrate - permanganates - hydrogen peroxide - furfuryl alcohol - strong oxidizers - strong caustics.
Decomposition
Carbon monoxide, carbon dioxide, hydrogen gas.

Fire.
Flash Point,°C
30
Autoignition, °C
520
Upper exp. limit, %
45.5
Lower exp. limit, %
10
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Will burn if involved in a fire. To extinguish fire, use water, dry chemical, chemical foam, or alcohol-resistant foam.
Fire potential
Combustible material: may burn but does not ignite readily.
Hazards
When heated, vapors may form explosive mixtures with air: indoors, outdoors, and sewers explosion hazards.
Combustion products
Fire may produce irritating, corrosive and/or toxic gases.

Health.
Poison_Class
3 (Strong toxins)
Exposure effects
   Ingestion
Harmful if swallowed. May cause kidney damage. May cause severe digestive tract irritation with abdominal pain, nausea, vomiting and diarrhea. May cause burns to the digestive tract.
   Inhalation
May cause irritation of the respiratory tract with burning pain in the nose and throat, coughing, wheezing, shortness of breath and pulmonary edema.
   Skin
Causes skin burns. Causes redness and pain.
   Eyes
Causes severe eye burns. May cause conjunctivitis. Lachrymator. Causes redness and pain. Lachrymator.

First aid
 
   Ingestion
Do NOT induce vomiting. Get medical aid immediately. Wash mouth out with water. Give milk of magnesia.
   Inhalation
Remove from exposure to fresh air immediately.
   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
1779
Response guide
Hazard class
8
Packing Group
II
 
HS Code
2845 90 10